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1

Technical / no power valves on 2000 cr250

« on: February 23, 2020, 05:59:02 PM »

A top end was done on my 2000 cr250. Now the power valves do not operate. I took the cover off and I am unable to rotate the valve drive shaft when gripped with a pliers. I am thinking that the valve drive shaft was mis-aligned with the pinion shaft when I replaced the cylinder. Am I able to correct this without lifting or removing the cylinder?
thank you
Gil
 

2

General Two Stroke Talk / cr250 losing coolant

« on: May 14, 2019, 04:49:45 PM »

2000 cr250
coolant comes out of the overflow hose. I might lose 10-15 ounces in a half hour ride.
I tried another cap and the same thing. I bought a new cap at the autoparts store (15psi) and the same thing. I made another seal from an innertube so that there were 2 seals (the seal that keeps coolant from getting to the overflow) and the same thing. The coolant is new, the waterpump impeller looks good and turns with the kickstarter.
It doesn't idle high as if it were overheating. It will start leaking in about 5 minutes after starting cold and letting it idle in the garage. The radiator seems clean and the rim where the seal sits appears smooth and undamaged.
What could it be?