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Compression Values

Started by Paris, October 26, 2016, 09:48:28 AM

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Paris

October 26, 2016, 09:48:28 AM
Doing a compression test on a 88 FJ1200 returned values of between 80-90psi which seems a little low for my taste

Test was done cold with all the plugs out.

are these values correct? should this test be done with a hot motor?

racerrad8

#1
October 26, 2016, 09:49:50 AM
The readings are usually better on a warm engine.

Did you open the throttle to allow air into the cylinder while doing the test?

Randy - RPM
Randy - RPM

Paris

#2
October 26, 2016, 10:45:27 AM
so i did everything wrong. :empathy2:

Cold motor and diddnt open the butterflys :dash2:

will retest tomorrow and post the results.

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