Compression test by JB Verified

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tashasdaddy

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JB
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1. Fully charge battery.
2. Start engine and warm her up.
3. Remove all spark plugs and disconnect fuel line.
4. Rig a jumper to engage starter solenoid without turning ignition on. Pull the emergency kill switch on rope start engines.
5. Screw guage into #1.
6. Turn engine over until reading on guage stops increasing or 5 times, whichever is more.
7. Repeat #5&#6 for all cylinders.

All psi readings should be within a 10-15% span.

* It has no effect to open the throttle.
* Don't get psi hysteria. Remember this is a 2 stroke engine and you are an amatuer at compression testing.
* Rope start engines will usually give lower psi readings than your know-it-all neighbor claims are required. Same for big JohnnyRude V6s
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RED SKY at night. . .
JB
 
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