Compression TEST - Result's are in !

[ceaserthethird]

I just did a Compression Test ...

1984 Honda ATC 70 - 4 Stroke

Result's - 120 PSI

I warmed up the motor , choke ON & OFF , Throttle WIDE OPEN !

What do you guy's think ?

Is it time for a re-build ? :confused:

[rustyhondas]

thats fine for a used motor.

[Rustytinhorn]

MY '81 200 runs at 120 psi. Its supposed to be 154psi +-14 but I'm 5280feet above sea level, so that makes a little difference. Personally I think its an ok compression. Its when it gets like to 90psi you should start thinking about rebuild. IMO.

[oscarmayer]

if you rebuild it, look at a 90 bigbore kit! :) more powa and stuff.

[ceaserthethird]

Any one in here with a ATC 70 Manual , What does it say for Compression Range ?

Post Up , if you have a ATC 70