Question about 1999 Yamaha YZF-R6
99 r6 carb model- The rev counter sticks at 3000rpm for a couple of seconds, then it drops to 0rpm for a couple of secs then it performs at the normal revs but then repeats this fault procedure as soon as you alter the throttle input. The bike performs perfectly throughout. It does this all the time hot or cold. ive tried to do some research myself and ive heard it could be a possible throttle position fault, im a car mechanic myself but its a different gravy. ive got me a workshop manual and read about adjusting the TPS and my uncles gonna balance the carbs. do you agree with this course of action? any help or advice would be much appreciated. thankyou very much
Hi, Wayne your ECM is generating an engine fault code via the tachometer for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Yamaha Fault Codes motorcycle manuals
1999 2002 Yamaha YZF R6 Service Manual R6 Moto Data Project
OEM parts for Yamaha
Posted on Sep 28, 2016
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Posted on Jan 02, 2017
sound to me that fuel not vented causing a lean sitution lack of power
check the fuel cap is working proper by allowing air into tank but not out
can try when engine dieing open fuel cap to see if regains power?
Posted on Apr 02, 2009
been told its something to do with the fuel sender in the tank. i think a wire come adrift, hope this helps, Uni. From Unitracmotorcycles.
Posted on May 22, 2009
SOURCE: tps part number for yamaha r6
THROTTLE POSITION SENSOR ASSY Approximately $203.00
Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock. I checked and the TPS is in stock.
You could Google " motorcycle salvage yamaha " For about $100 they will sell the entire carb ( assuming one is available ). Before I did either option, I suggest you let the shop have a look at the bike. If the TPS is not the problem, you just wasted $200.
Posted on Jun 01, 2009
hi,just a thought,if you have had two sets of carbs on it and they have been tuned/balanced and still does it,then it is probably not the carbs causing the problem.check your throttle cable,check it is in good condition with no kinks or tight spots,also check it is not jammed between any other component causing a sticky spot,also,check the freeplay in the cable,you should have around a 1/4 " freeplay at the carbs,with the engine running turn the steering lock to lock,the engine revs shouldn't change..s aticky cable can cause the problem you describe.hope this helps...cheers
Posted on Apr 16, 2010
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