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2005 Yamaha DT 125 X - Page 9 Questions & Answers
87 yamaha virago xv 700 no spark?
A batt must read 12.6v for acoil ign...no less. Testit w a multimeter. Twelve volts is actually disharged. Getta new batt if it doesnt hold charge
6/21/2022 4:29:22 AM •
Yamaha...
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Answered
on Jun 21, 2022
What is the fuel to oil ratio 1973 Yamaha lt2 100?@
If you don't have the manufacturer's specs or an operators handbook then your next best solution is to check the oil manufacturer's recommendations. Different oils for the 2 strokes can have a wide range of mixture ratios. If you follow their recommendations for the Yamaha 2 stroke the warranty and guaranty for will be applicable for the ratio they recommend.
5/30/2022 7:37:50 PM •
Yamaha...
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Answered
on May 30, 2022
Yamaha YZ80 has water in the oil
Not a simple fix but the most likely is a leaky head gasket. After that it gets more expensive? Might try pulling the plugs and checking compression!
5/30/2022 7:27:11 PM •
Yamaha...
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Answered
on May 30, 2022
I have a 1993 Yamaha FZR 600. It won't start and backfires.
Try going back to basics. An engine needs fuel, air and spark/compression. If you have good compression, a good spark and it's supplying fuel the issue is possibly one of the following. Air supply to the cylinders or something is set up wrong.
Have you checked the air filter is clean? You will be surprised at how much difference a dirty one can make.
Recheck the setup on the carbs. Too much fuel can cause issues just like not enough fuel can. If the carbs aren't balanced to work together they can cause problems and if a needle or jet is slightly out it can be a factor in the issue as well.
The intake boots will depend on exactly how bad they are cracked and if they are the ones between the carbs and the cylinder head. If they are badly cracked they could be letting extra air in thinning the fuel/air mixture making it run 'lean'.
Yes, the battery could be a factor in this. Some engines, especially the higher revving versions, sometimes need to spin over a certain RPM for them to catch and start. Is the Boost pack your using designed for motorcycles? A booster for a car or a truck can be too powerful for motorcycles as they are designed to turn over bigger, heavier engines.
Check through these and comment below and i'll see if I can help more.
5/17/2022 4:14:41 PM •
Yamaha...
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Answered
on May 17, 2022
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