guernsey70 Posted December 3, 2017 Share Posted December 3, 2017 I haven’t posted for a while, but had the same problem myself on my Feb 2015 Tracer with 18,500 miles on the clock. My local dealership here in the UK said that was it was normal, but it got so bad it started backfiring and stalling every time I came to a stop. I took my bike to a local specialist who said it could be the valve clearances, but they don’t normally need doing to around 24,000 miles. So I decided to put it in the have the valves looked, and whilst he was stripping the top down he noticed two of the three the air jets (I think that’s what they were) were blocked with a thick black sludge. He cleaned them all out, adjusted the valves (only needed a small adjustment) and hey presto — no more hot start or stalling issues. Link to comment Share on other sites More sharing options...
skipperT Posted December 3, 2017 Share Posted December 3, 2017 Sounds like he cleaned something in your throttle bodies, they can get gunked up with carbon and other deposits. But that would definitely cause poor idling. A Yamaha product called Ring Free plus is the bomb as far as additives go. Really good stuff. -Skip Link to comment Share on other sites More sharing options...
Premium Member 1moreroad Posted December 3, 2017 Premium Member Share Posted December 3, 2017 That's strange. I have the opposite thing going on. Doesn't like to start first thing in the morning. Starts just fine after that.Me, too. I just figured it was the battery getting weak. Link to comment Share on other sites More sharing options...
koth442 Posted December 3, 2017 Share Posted December 3, 2017 Me, too. I just figured it was the battery getting weak. Me as well. Although I've found turning the key and letting it sit for 5 or so seconds before pushing run helps. Somebody previously mentioned allowing time for the fuel pump to finishing priming the injectors. '15 FJ09 Link to comment Share on other sites More sharing options...
tray Posted May 9, 2018 Author Share Posted May 9, 2018 Sorry for the time it took to upload a video of the problem, but this is what happens to my bike when i try to restart it a few minutes later. It doesn't matter if i turn the key and wait a few seconds or not, the bike does this everytime and a few times it even stalled. [video src=https://youtu.be/S2VUa6haLcQ] Link to comment Share on other sites More sharing options...
koth442 Posted May 9, 2018 Share Posted May 9, 2018 Mine did that until I got a reflash. Now the problem is gone! '15 FJ09 Link to comment Share on other sites More sharing options...
Premium Member builderbob Posted May 9, 2018 Premium Member Share Posted May 9, 2018 Try disconnecting the battery for a few minutes. Reconnect and restart. That seemed to help with a rough start I was having. Link to comment Share on other sites More sharing options...
BBB Posted May 9, 2018 Share Posted May 9, 2018 Mine does that too. I just put it down to being half-warm and give it a bit of throttle on restart. Red 2015 Tracer, UK spec (well, it was until I started messing with it...) Link to comment Share on other sites More sharing options...
tray Posted May 9, 2018 Author Share Posted May 9, 2018 Thanks guys. I was afraid of this problem but now i see i'm not the only one... I will try to disconnect the battery to see what happens. Link to comment Share on other sites More sharing options...
skipperT Posted May 10, 2018 Share Posted May 10, 2018 “Are you concerned about the “uneven” sound of the idle?” Normal. Mine’s done that at hot restarts occasionally for 27k miles. -Skip Link to comment Share on other sites More sharing options...
tray Posted June 20, 2018 Author Share Posted June 20, 2018 “Are you concerned about the “uneven” sound of the idle?” Normal. Mine’s done that at hot restarts occasionally for 27k miles. -Skip Mine does that everytime i restart the bike. I tried to disconnect the battery and the results are the same. I'm starting to think maybe the bike has a block somewhere... but it's really weird... Link to comment Share on other sites More sharing options...
FJ29ER Posted June 21, 2018 Share Posted June 21, 2018 Open up your airbox and look inside, something is making it run fat/lean for a second and then it clears up. Mine did the exact same thing and I removed my charcoal(evap) canister and its been fine since, but its only on cali bike so not 100% whats going on with yours. Link to comment Share on other sites More sharing options...
yzpilot Posted July 14, 2018 Share Posted July 14, 2018 My 2015 FJ-09 does this also (like in the video). I just learned to live with it Link to comment Share on other sites More sharing options...
lamwayne Posted August 12, 2018 Share Posted August 12, 2018 I had exactly the same problem on my 2015 MT-09 tracer. It starts right up when cold but when the engine is hot, the idle speed takes a few seconds to climb to stable rpm and the engine might stop running in the mean time. Try entering diagnostic mode to reset the idle speed learn value which actually made the matter worst. New spark plugs and air filter would not help either. Finally went to the dealer and found out it was dirty injectors causing the issue. Had the throttle bodies cleaned and the bike now nuns great. Link to comment Share on other sites More sharing options...
skipperT Posted August 12, 2018 Share Posted August 12, 2018 I had exactly the same problem on my 2015 MT-09 tracer. It starts right up when cold but when the engine is hot, the idle speed takes a few seconds to climb to stable rpm and the engine might stop running in the mean time. Try entering diagnostic mode to reset the idle speed learn value which actually made the matter worst. New spark plugs and air filter would not help either. Finally went to the dealer and found out it was dirty injectors causing the issue. Had the throttle bodies cleaned and the bike now nuns great. Thanks for the info. But something you wrote doesn’t make total sense to me? Cleaning the throttle bodies won’t necessarily clean the injectors. The injectors are housed in throttle bodies on this model but they are 2 separate components. Also, injectors can technically only be cleaned by sending them away to be taken apart and repaired, running a cleaning solvent through them from a special canister set up, or just superficially by wiping the bottom of the injectors where the spray (penticles I think they’re called?) are located. So which part was actually cleaned that made the difference? Or was it both? Thanks for clarifying, Skip Link to comment Share on other sites More sharing options...
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