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Discussion Starter · #1 ·
This question probably applies to other models, but we have a 2007 Artic Cat 500 4x4, with the automatic transmission. The service manual indicates that timing cannot be adjusted but it can be checked and verified. Instructions for same are to 1) attach the timing light, 2) "remove the timing inspection plug from the left-side crankcase cover, 3) using the tach, start engine and run at 1500 rpm - ignition timing should be 10 degrees BTDC.

I believe I have correctly located the timing inspection plug (circled below in red) but the parts manual identifies this as the "Plug, Oil Filler". When I crank the engine to start, with the inspection plug/filler plug removed, oil spurts up from the hole. Is the timing supposed to be verified with oil spurting up at the same time? What am I doing wrong? Every other timing I have checked (admittedly not many) was in a dry condition.

Al
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Yes there is oil in there. Why do you think your timing is out?
 

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Discussion Starter · #3 ·
I don’t think it is. Partly, I was interested in figuring a way to determine engine speed, rpm.
 

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You can buy a ten dollar tach that wraps around the spark plug.
 

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They are great for tuning two stroke yard equipment and chainsaws as well.
 
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