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dirttrack71
02-04-2006, 05:08 AM
I had the TRX bored a little. I have added a K&N air filter. Hetrick exhaust. Thinner head gasket. What is the best way to go about breaking in the new bore and rings? I bought the 82 85 88 main jets. Any help would be appreciated.

3-D Racing Dad
02-04-2006, 05:38 AM
I'm no expert, but I just got Kyle's quad back yesterday and Eric from ICRacing told me to run 3 cycles of 15min (at idle)each with a fan on the bike, letting it cool down completely between cycles and he said it would be good to go.

KILLER EX
02-04-2006, 08:04 AM
i am no expert either but i would have to disagree i would think idle for a cam breakin is a no no.. and a piston ring and bore breakin i think you would want the rings to expand so i would vary the throttle while moving for airflow over the engine