XT600 Carb Secondary Issues
Working on the rehab of my 2nd '86 XT600 (should have never let the first one go). After doing all the major service, it now runs great except for one major problem. It starts well, idles well, has good throttle response, and pulls hard at lower RPMs. As the RPMs climb, it suddenly and repeatedly dies and then immediately pulls hard again. It is violent... pull hard, nose dive, pull hard, nose dive, pull hard, nose dive, etc... just that fast.
It's as if when the secondary slide opens it just dies and then when it drops again it takes off.
I thoroughly cleaned the carb (including ultrasonic), cleared all passages, new rubber and o-rings where required, set float height, set sync screw, etc. I'd like to think I'm pretty proficient with moto carbs so I'm pretty sure everything is OK, but obviously it's not.
I pulled the secondary jet to make sure it was clear and fuel was getting to it.
What in the world am I missing?
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