Bike wont start after top end rebuild

I would start with the old piston. Loading Close. Ex-500. but when its hot its start ok. Aug 02, 2018 · A runner typically won't need to be rebuilt, and there are many things that need to be checked in order to determine if the rebuild is necessary. it doesn't sound like when my running 750 is turning over and not starting. After removing the carb I see this? Valve adjustment? Timing off? New top end? 07 yz450f Aug 01, 2019 · This is the Hot Rods bottom end kit we used to rebuild our 2 stroke engine. Now only backfres once in a while. Wasn't our bike then but that's why the top and bottom end rebuild. Tried a CDI from another bike. Everything looks good on the rebuild except for two of the air fuel mixture screws were really tight. The amount of hours on the engine's top end are the best indicator of when to do a rebuild. Went to rebuild my carb to reduce all the backfiring on decompression. When this happens it can mess things up until the water is gone. chain45154 Many carburetors produced after 1970 have a line attached to the drain plug for this purpose. Then let the bike cool down for around 20-30 minutes. Harley-Davidson has begun Dec 24, 2019 · I use an end-of-year checklist to make sure I’m not sorry I missed opportunities to get the most from my cards come January. bought a top end kit and crank seals and rebuilt the engine. I just pulled the whole top end off again, and valves look Sep 22, 2010 · The bike runs really badly. There are two screws under the top plate of the steering stem on the tank that you will need to remove. So, we've put together a review checklist for your rebuild, followed by a general engine break-in procedure, because your motorcycle should bring joy and fun to your life, not take tufts of hair out of your head. When a dirt bike won't start when it's time to ride, it can be frustrating, is out just to check out the condition of the top end after running with a choked up, dirty or worse; Here's how to rebuild a carburetor yourself, although if you're hesitant,  1 Sep 2019 The MXA wrecking crew has had its share of bikes that won't start. Alwways hard to start after it's hot. And my compression is about 110 in both cylinders. I can't for the life of me understand how anything mechanical on the timing of this bike could have moved from me doing a top end. OK guys! Fast help needed! Just put my engine (NX650) back together after a rebuild, and it wont start! Here is some information about the situation: 1) Spark - new plug, gives spark, the only thing I'm not sure about timing, as I have old timing light, and I can only check timing when cranking the It "blew up". About a week later starter getting harder to start. Boosted released its first electric scooter, the Boosted Rev, in May of this year. If you have an account, sign in now to post with your account. But it overheated 3 times caused by way to lean main jets. I very carefully transferred the marks from the NEW pazon pickup plate to the NEWEST pazon pickup plate. i marked position of magneto plate and replaced to the mark after replacing seal. Allow the engine to cool completely. After 10 minuted it woldn't start again. It was getting the required compression, spark and fuel but for some reason the engine will still not kick. Was the bike running properly when you tore it down for the rebuild, or was the rebuild because the bike stopped running? One possibility is that water got down into the bottom end when you took the bike apart. It used to be a 1-2 kick deal, even when cold. Fresh head, cylinder, piston, new JD jet kit, etc. Started the bike fresh after rebuild, cranked right up, ran great for the first 500miles. Working on a 82 1100 B2, If you followed the other posts, this is a fresh top end, head work completed. 3b. Jun 01, 2008 · Has about 45-60 hours on . I notice the first time I disassembled the ring had come out of the groove on the piston could that have r Since you're the one with a bike that won't start and the problem may be related to the engine having been unable to breathe, after this startling revelation of how the air filter looks, a new spark plug should be a must, along with a Compression Test while the spark plug is out just to check out the condition of the top end after running with a choked up, dirty or worse; Torn air filter allowing dirt and particles to reach the engine which will greatly accelerate the wear of internal parts Help, bike wont start after rebuild. Just rebuilt top end. Holding the spark plug against the head while cranking the engine is the correct way  Sometimes when your dirt bike does not get used, it won't start. So I just did a rebuild on my 98 Yz80, and it wont start. Struggle to start after top end rebuild Re: RM125 No power after top end rebuild If you are getting full motion from the exhaust valve from closed to open, and still only getting 100 lbs of compression from a known gauge with the throttle open or carb off during the test you are either losing compression in the cylinder or the reeds and or seals are leaking etc. after replacing engine in cart mixed a 50:1 gas mix in a seperate tank and tried to start. The starter turns strong and it will cough, as in burn the fuel and make a cough or a backfire, but it will not start, will not even stumble. I have read and read and read online trying to figure out what might be wrong. Re: engine won't start after rebuild Sounds like a broken ring now. However, before tearing your engine apart, there’s several signs that can tell you it has a worn top-end. 110 won't start after rebuild. Take the top end apart and put the old piston in the bore and check the skirt clearance at the top, the middle, and the bottom. After this you need a 10mm socket with an extension. By 387wagner, April 13, 2011 in General Dirt Bike Discussion It turned over just as fast and with the same noises as when the bike would actually start, so nothing seems amiss there. the carb is clean and its getting gas to the engine, the spark plug is sparking a blu May 11, 2017 · At the end of the day routine maintenance is key to keeping your bike or quad ready to ride. This video is unavailable. 4 weeks ago took it to a shop (friend) started and ran fine. if you have an air compressor, remove the rear boot from the carb to the airbox(the rubber ducting) and spray air into the carb when you kick it over. in order to get the left screw, turn the bars all the way to the left and then you can get you socket on, to get the right screw, turn the bars all the way to the right. I was eventually able to get them out and thought I'd replace them, but the threads on what came in the rebuild kit and the threads on the oem look very different. It does put the gas line in a weird position at the top kinda, but its still flowing fuel to the carbs. Hey guys, just did the top end on my 05 RM 125 and when I went to start nothing, have tried everything pulled all apart re assembled twice. Check it several times until you get the feel for it. So Nov 24, 2014 · after rebuilding top end on my yz250 it was idling and just died and now it wont start any idea's just went so im just going to rebuild the whole bike this winter Nov 17, 2012 · 2000 kx125 wont start after top end rebuild If this is your first visit, be sure to check out the FAQ by clicking the link above. Does anyone think this could be the source of my smoking? I am still going to check out the valve seals too. Once the bike starts to churn over, keep it moving until you can clean the flooded gas out. Some bikes can be ridden much longer, while less than optimally maintained bikes might not make it that far. You can post now and register later. Engine turns over super slow, cranks at normal speed with decomp pulled a little, but she doesn't start anymore. I have too many bikes and want to build another raptor 700 or get a Pulls through all the gears just fine it just won't start. Im at 1400 elevation. com - The home of the Kawasaki EX500 / Ninja 500R > Forums > Engine > Won't start after top end rebuild Rebuilt top end now it won't start. Nov 16, 2014 · 1984 Honda xl200r. 1 day ago · It's one year since my ex met her, and nearly 8 months since I packed my bags and went nc with him and everyone that connected me to him. If the engine does not start after steps 1 & 2, buy a new carburetor. (Repair cost $80-$120) OK guys! Fast help needed! Just put my engine (NX650) back together after a rebuild, and it wont start! Here is some information about the situation: 1) Spark - new plug, gives spark, the only thing I'm not sure about timing, as I have old timing light, and I can only check timing when cranking the If all you did was rebuild the top end and did not disturb the points, and the compression is over 100 psi, then it "should" start. Dec 31, 2013 · After my rebuild, the bike started right away and idled just fine, but the next day when I took it out for a shake-down run, it started to run poorly and refused to idle - almost as if it was running out of gas. I rebuilt the top end because there was a hole melted in the top of the piston because the oil ijection was bad. S. Saying I want the bike to run like new and signing for a TOP END build is also very different. For this Dec 13, 2019 · Hey friends, got 650 Hitachi carb I'm rebuilding to use on my CB750A (Hondamatic). KZ440 Won't Start After Top End Rebuild Compression of 90 should be plenty to allow the engine to start. The top engine rebuild with low overall mileage on the bike is good. when its cold (lower then 18c) its takes like 3-4 times when pusing start. I can't find any data to test anything and I can't get any live data from the scanner as it says 'mode not supported'. No difference. Fist problem I found was the rings on piston1 number 1 were stuck solid the piston. America’s largest motorcycle company and its most successful manufacturer of electric motorcycles are going head-to-head with a pair of battery-powered street bikes. The following is one way a MotoSport employee used to break-in his dirt bike: Let the bike warm up normally, then ride the bike for around 10-15 minutes at a decent pace but without over-revving the engine. I didn't even open the primary cover, timing cover during the top end rebuild. . That it pops through the carbs would indicate that the plug wires have been mixed-up. I followed the book for setting the rotary valve with the mag at tdc and the plate aligned with the mark. Dec 31, 2013 · The previous owner was quite fair, there was relief for the expenses I encountered, and frankly, I'm now pleased that the top-end rebuild is done. Wont start, it was trying to advanced and kicking back. Then it eventually dies down and dies completly. You may have to register before you can post: click the register link above to proceed. I just pulled the whole top end off again, and valves look Well the top end is back together and I'm trying to get it started. Here, we go over critical steps and key tips to installing a new piston and ring(s) in your two-stroke. If all you did was rebuild the top end and did not disturb the points, and the compression is over 100 psi, then it "should" start. So far it cranks over fine, has spark (the plugs obviously spark when unscrewed), the cylinders are getting plenty of gas, but it won't fire. The is no such thing a Re gaping rings. I went through the carburetor about 4 times (even with a magnifying glass) trying to figure out what was wrong. New fuel lines and carb. So I just rebuilt my 400ex top end and I put it all back together and it won't start. with the top of the line bike These changes are very favorable to people biking and set a new standard for safe passing laws in the U. The only other mod is tors removal. Last winter, I rebuilt the top end after reading your article in Dirt Rider. . it turned the engine but didnt start, although it was harder/stiffer to push foward gun - stripped it down again after wards and was all fine?? confused 12 Jun 2018 Motorcycle engine close-up detail background. 1) Start your engine and let idle occasionally blipping the throttle for four to five minutes. KZ440 Won't Start After Top End Rebuild Just finished the bottom and top end rebuild on my 87 CR250. New ignition coil/spark plug wire. Adam Booth Put enough hours on a 2 stroke engine and something will let go. Installed new cylinder, piston and rings. However, we are still unable to get the bike to start. banshee has starting problems. After I put the quad back together I turned it over a few times and I heard something that I hadn't heard before. Wont start. I hooked it back up just to see if it might start like that. This is after a rebuild of the…. Had injectors cleaned and verified yesterday. Is it Possible for an Amateur to Rebuild a Motorcycle Engine? 20 Jul 2019 Given those three items, an engine will run. When it first came to the farm, my uncle rode it off his ute and around the paddock once and then it never started again. All kits include the following parts: Pistons, Rings, Top End Gasket Kit, Wrist Pins, Circlips, Needle Bearings (depending on application), and Stickers. Firsts start up after top end rebuild on this ssr 125. Jun 27, 2018 · Rebuilding a top end is a task most two-stroke owners will run into at one point or another. Re: RM125 No power after top end rebuild If you are getting full motion from the exhaust valve from closed to open, and still only getting 100 lbs of compression from a known gauge with the throttle open or carb off during the test you are either losing compression in the cylinder or the reeds and or seals are leaking etc. It has great spark, and compression is 180 (bike has not run yet, so I expect this number to go up after Hey all, here's the story so far: My bike (1981 KZ440 LTD) was burning oil, so I took off the head and cylinder block to see what was going on. Jan 27, 2014 · A top-end rebuild is pretty easy to do on a two stroke engine, and the only special tool you’ll need is a torque wrench for most dirt bikes. Staying on top of maintenance can help you avoid unexpected, costly repairs to the top end. Periodically, if you own a two-stroke, there will come a point where you need to rebuild the top end of your engine. Compression of 90 should be plenty to allow the engine to start. This is the method i used to get all 3 of my families bikes going after letting them sit for 2-3 years. I have fuel in the bowls and spark on all four. No issues. Mar 29, 2018 · We want to help as many people as we can avoid that feeling. The carbs were drained when I got the bike, and remarkably clean. com - The home of the Kawasaki EX500 / Ninja 500R > Forums > Engine > Won't start after top end rebuild SOURCE: 1997 yz 125 wont start, please help. Went to Comp Edge and rode all day. Well got the top end apart today, and with only one snag, a rocker bolt got snapped off in the head. ive change 3 battery including a new yuasa battery and problem remain. Tobbe so make sure its at least 4th or 5th from the Top of the Needle (3rd is too high and will make the needle too low) , as It turned over just as fast and with the same noises as when the bike would actually start, so nothing seems amiss there. If you keep up on the maintenance, a bike can safely be ridden from 40 to 60 hours before a rebuild. recently bought a '85 g1 that was not running due to piston stuck in jug. Here's a little background on the problem I am having. I bought it like that and the first thing I did was the block off kit. I notice the first time I disassembled the ring had come out of the groove on the piston could that have r Sep 01, 2019 · Then, pull in the clutch, shift the bike to second gear (third on a big bore) and pop the clutch. Today I took the stator out and reinstalled it and it started right up. Search. Even though I've been working on engines for 50 years, and have my own break-in steps/procedures for breaking in a rebuilt engine, I'd like to hear from the Trumpy brain-trust on your suggested steps for breaking in my '72 T120V after rebuilding the top-end. Analysts are saying they expect e-bike sales to enter warp speed over the next few years. May 10, 2012 · Namura Technologies ATV Top End Repair Kit comes with all the parts you need to perform a Top End Rebuild. engine turns over and tries to start but won't . On inspection, Mar 18, 2016 · Re: Bike wont start after top end rebuild. I rebuilt the engine, the crank was professionally rebuilt, I rebuilt the top end and assembled the whole engine. Sep 26, 2019 · Firsts start up after top end rebuild on this ssr 125. Dec 14, 2014 · After the rebuild the bike started no worries, during the first ride it cut out on me and haven't been able to start it since. No, they won’t suddenly make it super comfortable to bike on the many streets and highways in our state that have no bike lanes or adequate shoulders. 020 first top end rebuild. 5 minutes the thing just starts auto revving. now things got worst and bike wont start without booster either its cold\hot even when i ride it 30 minuts and stop he wont start again. They make it clear that a person’s safety is paramount. May 10, 2012 · Won't Start, Thinking of Rebuild, Can I Change The Crank? Namura Technologies ATV Top End Repair Kit comes with all the parts you need to perform a Top End hi all im need some advice i have a 125 sm 2006 i have replaced the piston small end piston rings and gaskets but now the bike wont start there is compression fuel and spark (altho difficult to see cause of the sun you can hear it tho) im now stuck any tips of advice would be very helpful It's recommended that you do your top end every 40 hours of run time, but if you're like me it gets put off until you really need it. I took off the engine from the bike and removed the top end, a few light taps removed the piston from the cylinder Feb 12, 2017 · Page 1 of 2 - Won't start after top end rebuild - posted in REV Chassis - Performance and Trail Models: 2007 MXZ 500 SS Adrenaline. Seeing as I just rebuilt it and have replaced everything not sure what the problem could be, obviously i'm no mechanic. Don't think it will be too much trouble to drill out. It did run for about 15seconds and then burred out and wouldnt start again. i usually have to have the top end done on my honda about every three years. your going to have to pull the cylinders and see what happened. Jan 03, 2013 · 2000 Arctic Cat 300 4X4 - Won't Start Facebook; I was going to rebuild the top end this next spring but didn't want to do that this winter in a non-heated garage 29 Mar 2018 We'll start with a quick review on the motorcycle top end rebuild. My current needle height is 1 up from the middle. Skip navigation Sign in. But let's get some details in here for ya'll The bike wasn't perfect, but it started and ran strong before my ill-fated rebuild. « Reply #9 on: March 21, 2016, 07:10:24 PM » Lol is the right answer, but when you say check everything, in regards to the timing I have set that chain and cams at least 15 times, 18 pins between 2 and 3 mark with 1 level with the front of the head and cam notches inward. the bike was in N and after about 2. 2dci after a top end rebuild (head refurbish, all recon injectors, most stuff new) and no codes. If your bike won't start, double- check that you have fuel and the kill switch is not switched to stop the After a minute, repeat the starting process and wait for the starter to cool. Jan 16, 2016 · Bought the bike with dropped valves, fresh rebuild, flushed the bottom end out and retrieved all the debris out the motor. They also noted Dec 03, 2019 · Most won’t give it a second thought when it comes time for a new one, and it’s common to simply replace the worn chain with one that matches the name on the derailleurs. Completely rebuilt top and bottom end over a year ago. Put it against some metal on the bike and turn it over while kicking the kick start (or and my engine has a spark and it has clean gas but it will not start I don't know what kick first time because it's warmed up but I can't get it to kick after not riding for a week  12 Mar 2012 my bike was running quiete well but the piston rings looked and felt a bit . Jan 30, 2010 · i just got a 2002 400ex and. If kicking and bump starting the engine don't work, it's time to look for a cause If the plug continues to foul after riding, try using a different heat range plug. Just pop now and then. please help : The bike has very strong spark, and a new spark plug. Now it won't start at all. 2) Warm up the engine again and ride the bike for five to seven minutes at a very easy pace, vary the rpm, don’t ride at one speed. Then repeat this 3 or 4 times. Join the conversation. 40 hours is excessive unelss you race in my opinion. Doing an camchain replacement on a honda cb250 which runs directly down the centre of the engine block i used a chain breaker to break the chain at the top then i attached the new chain to one of the detached ends of the old chain with one of the bolts and then just ran them both round until only the new chain was in place and the old chain was What does the repair order specify? Complete engine rebuild or top end rebuild? Not the final bill, but what you agreed to have him do? Saying I want a COMPLETE rebuild and signing for a top end job only is two very different animals. Jan 16, 2016 · Fresh head, cylinder, piston, new JD jet kit, etc. Re: Top End Work Complete - Bike Won't Start « Reply #18 on: June 15, 2011, 10:32:21 pm » move the cam so the notch lines up with the head surface,with the "T" mark lined up as you have,with a bit of luck you havent bent valves. Will not start after rebuild? This 1989 Suzuki DR was sitting in the shed for around 7yrs before my father and i decided to try and get it running. com's Top 20 bike racers of 2019: Who missed out and by the end of the season it was virtually nailed on that any given weekend he would be and 2019 won’t have challenged that 1 day ago · On the slack end of the enduro-race spectrum are bikes like the Specialized and it is a feature you won’t find on any other bike—which is worth a lot. If you find any  18 May 2009 Well the top end is back together and I'm trying to get it started. checked plug for spark which is blue 77 Ironhead Won't Start after Rebuild I recently tore my 77 Ironhead apart and put new rings and gaskets in, and am trying to get it started. as it burns the oil off of the cylinder Just like the title says, I rebuilt it, it won't start. Hopefully someone can help me with some diagnostic data, I hand scanned the Renault 2. I can't get it sold until I get to starting regularly. Deloitte says it expects 130 million e-bikes to be sold between 2020 and 2023 in the US. Jun 22, 2014 · I have an 04 cr125 I just put a new bottom end in, last summer I did the same with a 99. when you pull the choke, it allows more fuel into the throttle body, causing a rich condition. Valves adjusted correctly and installation sequence followed by clymer manual for third time now. I'm living with my parents again after nearly 20 years, on antidepressants after a very close call, working in a job I don't understand and pining, absolutely pining, for the life I had before he fucked it all up. Finally would not start. The bike ran great before the tear down (main seals and bearing were shot), but this thing won't even THINK about starting now. Repeat this "heat cycle" process four more times. When I . Sep 14, 2018 · If it still won’t spin and you don’t hear anything when you hit start, try roll-starting the bike by getting some speed (ask a buddy to push) and put the clutch down in second gear. Aug 25, 2009 · My 2004 CRF250x wont start. The next step is to connect the gas line back to the carb and run the bike until all the cleaner is pushed out of the exhaust. 2 stroke bike are very dependent on compression. Posted on Jan 13, 2009 Hey guys, just did the top end on my 05 RM 125 and when I went to start nothing, have tried everything pulled all apart re assembled twice. 138 compression on both cylinders, I think there is something wrong with fuel supply. We'll start with a quick review on the motorcycle top end rebuild. Usually will only start from pull start or push start then its runs excellent. As strong as these bikes run, I'm sure many could be on their last leg and still "feel good". and being a bike that is 12 years old my best educated guess is that the top end needs to be rebuilt. The bore was so worn that I had to skip to a one millimeter-oversize piston kit, just so the bore job would clean up a severely worn spot below the intake port. when i try to start it, it tries to start and stops tries to start and stops tries to start and stops over and over, like it has the hiccups, but wont start and run. When i manage to start it (bump start) it dies unless i give it high revs but then the high revs stick on and it starts to go mental. My last one I did after a complete rebuild it wouldnt start after kicking and kicking over and over, had perfect comp, great spark, but fuel wasnt making it to the cylinder. There is also the issue of parts avaliabllity. Dec 19, 2019 · Hours later, after I’d said my goodbyes and cranked the thing all the way up the Hudson River Greenway to InsideHook’s office in Midtown, I wasn’t surprised to read that it had made Time’s 100 Best Inventions of 2019. To start, I make sure I’ve used all the annual benefits and credits, that I’ve reviewed any devaluations from the past year, and that I’ve updated myself on each card’s current benefits. 5 weeks ago, kept stalling at Glen Helen. It also came with a Vertex Piston. Your vehicle’s service manual is a great place to start to determine service intervals. Won't start after rebuild - posted in MXZ / Legend / Summit / Grand Touring / Formula : I have a 1995 formula z with a 583 in it. So few of them have needed rebuilding that Yamaha stopped providing pistons, oversize piston rings, and plain bearings a long time ago. Feb 08, 2005 · Don't know much about your bike, but. Use a feeler gauge set and find a clean but very slightly firm fitment between skirt and bore. 77 Ironhead Won't Start after Rebuild I recently tore my 77 Ironhead apart and put new rings and gaskets in, and am trying to get it started. bike wont start after top end rebuild. oil won't seal valves and will only seal ring for a little while. Be sure these critical steps and precautions have been taken. Aug 10, 2011 · crf250r wont start after rebuild by marks crf » Wed Aug 10, 2011 1:09 pm hi all, i have rebuilt my 2005 crf250r engine fully gearbox,crank,topend but now it won't start Jan 15, 2016 · Honda Sl125 will not start after rebuild. This Thursday and Friday night kicked it all night would not start. I probably went 80 to 100 hours on my last top end. At the other end Motorsport. Struggle to start after top end rebuild Top-End Seized After Rebuild Question: I trail ride a 1989 YZ250. past 10 months bike struggling to start. bike wont start after top end rebuild