So over the last month iv been desperately trying to figure what is causing an off idle to bout 3000 rpm stumble and popping . Iv tried everything. Changed to a different rack of carbs , different rack of coils, new jugs and pistons, and cant figure it out. My buddy was ready to swap out the entire engine for another one when he suggested trying a different cdi box from 2 other srx700s both 98s. He had one good cdi and the other one had the section of it that runs the power valves blown. First the good one......no change. Then when we tried the poor one, it didnt run the power valves but it ran great. He removed the good one from his running 98. Then if I put my cdi back on and run the engine without the power valve motor connected its better but still not as good as the poor one. Has anyone had this problem, and what should i do to fix it.
Backwoods M Max
New member
You might want to post this in the model specific page. You will most likely get better responses and more views.
Turns out the recoil blew at somtime in its life and jammed the crank to a stop and threw the mag cyl out of phase . Even though it had been welded already.....go figure so. New motor.......man!!!!!
Was it shaking or vibrating bad?It's good that you found the cause.