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2004 Yamaha YZF-R6 - Page 7 Questions & Answers
I have an 02 R6 that around 5 to 6k it seems to sputter.
Hi,you have done quight a few things to the bike wich aliminates a few of the problems,first since replaceing the burnt wire did you check that numer 4 cylinders plug was the write coulor,if its still sooty it could be down to a blocked air jet cousing a rich mixture,this sootyness on spark plug is normerly a sign of to rich mixsture or electical falt.
as for the exourst if the bike was running ok when you first put the exourst on it should be ok,some exoursts do fit strait on and some need up jetting,I would ask where you bought it from.
after saying all of this personaly I dont think it would effect just the 4 cylinder if I was you my first job would be to strip the carbs down and clean them up and go for another test drive,I hope this was some help as a ex-biker I understand how frustrating this is all the best hope you sort it from what you have already done I think you will get to the bottom of this and have it running properly in know time,again all the best.
Why is oil over full
more explanation?? did you just change the oil? or have you ever added oil? are you checking on level ground? You said its not milky so I take it that it is water cooled so has it had any over heating?? have you flooded the motor trying to start it? smell the oil dip stick if it smells of gas the crank case has fuel in it and now shows its over filled. The only way to know for sure is to drain the oil call the dealer or look in your service manual how much oil it holds and replace the oil with the correct amount then run the bike and then check it. If the bike is running correct it should be fine. Always make sure you are on level ground when checking oil.
T get fuel pump engage
Sounds to me like a carb related problem try stripping them down maybe a sticky float chamber
Idle low stalls stopped
This is usually a fuel problem. The bike is running either too lean or too rich. Check your spark plugs -- if there's black carbon on the tips, the fuel/air mixture is too rich and needs to be leaned out. If they're white, it's running too lean. If they're tan, there's some other issue. Clean or replace the air filters and check your inline fuel filter (if you have one) to make sure there are not clogs or obstructions.
Runs idle stalls
If the engine runs fine at mid-range and upper rpm levels, and barring a lot of aftermarket bolt-ons (new pipes, air pods, etc.) I would perform some simple solutions first. Fire up the bike and run the engine for just 3-4 seconds, then shut it off. Feel each one of the exhaust pipes. All of them should be equally warm. If not, you have isolated the problem to an individual cylinder. This misfiring of a single cylinder can be due to a plugged jet, a bad spark plug, or a bad coil. If the bike has been parked for a while, you can easily add a bottle of Sea Foam (about $9 at any automotive store) or equivalent to the gas tank and see if that helps. Sometimes it takes a few runs to clean out the very small idle jets. Secondly, pull the spark plugs and read them. This is a bit involved on the R6 as you will need to pull the tank and the heat shield beneath it. Be very careful as this bike has coil-over plugs. If your exhaust pipe test revealed one cylinder not firing well, choose that one first and see if the plug is wet, blackened or excessively worn. Replace as necessary. There is a specific test for the coil which I won't go into here, but these bikes generate a lot of heat and burying the coil into the head really stresses them. Finally, join the R6 forum and see what others have done to correct this. It is a common problem with this bike. My identical bike to yours had a bad coil.
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2003 Yamaha r6 transmission
I recommend u to hv a scan test first,because u need to find out that the transmission problem or trans controllers problem.
No power when turning key
Battery is bad. Rapid clicking of starter selenoid is because battery does not have enough to hold spring down in selenoid when it sees the starter load. Battery only has a surface charge (nothing of power). Try a new battery or a jump. Should have lights first, then horn, then starter. If no lights, check all fuses.
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