Question! I've got a 2000 ttr250 blue tank model. The problem I'm having is with the choke.
When I initially start the bike, I pull the choke knob outward and start the bike. As soon as the bike is running, I push the knob in half way and let the bike warm up. Naturally the RPM is elevated when the choke is on. When I feel the motor should be sufficiently warmed up, I push it all the way in. The motor dies almost immediately.
To start it back up I have to crack the throttle just a bit and hit the starter and it runs perfectly after that.
Any clues? The plug looks good. Nice coffee color, dry.
I had the same problem from cold until I went up one size on the pilot jet and it was a 100% improvement when starting from cold
pretty comon with Aussie yamahas due to the emission requiments and average fuel I did the same on my sons ttr125 as it was terrible at cold starts until the jet was replaced
-- Edited by ttboof on Thursday 29th of December 2016 01:28:55 AM
