Fouled Plug

bbeep71 said

How do you do a compression test wet? Also, how do you check if the valve seal is good? No smoke on startup but sometimes it smokes after a hard ride from the #3 side.
Thanks

Click to expand...

You do the compression test normally where you warm up the engine, disable the ignition, then wire the throttle open.

then hook up the compression gauge and see what the readings are.

Then take an oil squirt can and squirt 3 or 4 shots of oil into the cylinder and repeat the compression test.


If your readings go up with the oil, then you have a ring issue.

If your readings stay the same, any low values will be due to the valves.

If they all have good numbers and no difference wet or dry, then you should be ok....