Question about Yamaha TZR 250 Motorcycles
When a bike sits the first thing to check is the pilot jet. It has the smallest hole and clogs the easiest. When it clogs you lose idle. Open the carb and look for a small hole next to the main jet, the pilot sits up inside. You need a narrow screwdriver to get up in there. Be sure you have a good fit so as not to strip the soft brass jet. I use a guitar string of the right diameter to clean out the hole. The varnish can be very hard, get it back to brass without removing metal is tricky. Squirt cleaner up into hole where the pilot goes with jet out. It should squirt through into carb air passage. Check float and float needle for cleanliness and smooth movment.Reassemble and try again. Good luck.
Posted on Apr 06, 2011
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Posted on Jan 02, 2017
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