Sorry if it's a dumb question. I'm going to be doing a compression test for the first time this week.
Announcement
Collapse
No announcement yet.
Compression Test Question
Collapse
X
-
Anonymous
Compression Test Question
Do you not have to disconnect the gas when doing a compression test? I know you're supposed to do it with the throttle full open, but won't gas start shooting out the cylinders with the plugs out?
Sorry if it's a dumb question. I'm going to be doing a compression test for the first time this week.Tags: None
-
hoyterb
No problem.Just keep the throttle WO and no fuel will come out.The air/fuel mix is a vapor.If you want to just pinch off the fuel line where it comes out of the tank.
-
Forum LongTimerCharter Member
GSResource Superstar
Past Site Supporter- May 2002
- 17921
- The only Henniker on earth
What is the purpose of opening the throttle?Currently bikeless
'81 GS 1100EX - "Peace, by superior fire power."
'06 FZ1000 - "What we are dealing with here, is a COMPLETE lack of respect for the law."
I ride, therefore I am.... constantly buying new tires.
"Tell me what kind of an accident you are going to have, and I will tell you which helmet to wear." - Harry Hurt
Comment
-
hoyterb
With the throttle closed there is almost no air being pulled into the cylinder thus nothing to compress.
Comment
-
Forum LongTimerCharter Member
GSResource Superstar
Past Site Supporter- May 2002
- 17921
- The only Henniker on earth
Ah! Makes sense! The compression tester I just bought had instructions telling me to unplug the ignition leads as well as pull the plugs. Seems redundant to me, am I missing something? Also, do I keep the plugs in the other cylinders that I am not testing, or pull 'em all out together?Currently bikeless
'81 GS 1100EX - "Peace, by superior fire power."
'06 FZ1000 - "What we are dealing with here, is a COMPLETE lack of respect for the law."
I ride, therefore I am.... constantly buying new tires.
"Tell me what kind of an accident you are going to have, and I will tell you which helmet to wear." - Harry Hurt
Comment
-
Anonymous
Comment