[smokeymacpot]

When doing a comp. test is the throttle supposed to be pinned or at idle and how many pulls should be done?

 

[SledHead]

dont you just screw in the tester and pull it over...

 

[xlt]

u put in the tester, hold the throttle wide open, and pule as fast as u can 3 times

 

[ski-dude]

that would be correct sir.

 

[lmdski]

What does holding the throttle open do? Does it affect compression??

 

[Polaris XLTSP]

It lets air into the combustion chamber. You want the engine to be able to draw all the air it can through the carbs to get an accurate reading. If the carbs are closed it's like trying to take a really deep breath with your mouth barely open.

 

[zackattack]

Like they said! Closed thottles will give a low reading.

 

[madd_dog]

i just tryed both i got 136 with closed n 135 with opend throttle

 

[smokeymacpot]

At what hsould you rebuild. Was it 100 or 110?

 

[madd_dog]

alot of ppl on here say 100, but my friend says 110, but he also drag raced so he wanted the most

 

[madd_dog]

performanc, woo donno how that happined. guess not enough sleep