[Storm59]

Any advice on an OS 21 TM. I broke it in the same way i Broke in the OS 18 TM i have but there is not comparison. the 18 is smooth and runs at about 250-265 f. the 21 runs smooth for a ashort while and the runs at about 295+ F. any advice on adjusting this engine would help tremendously.
i did not mention that i modified the cranks on both engines and put a back plate on si as to run a starter box.
the motors are used on a Revo 3.3.
The three adjusting screws are confusing.
i also am switching to 30% Werks fuel.
i was using 20% Werks.