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Just a mpi supercharger. Original owner said it had a shim on the head to lower compression... There was not one. Starter bearing went out well tuning, sounded bad, I thought a piston was cracked. Did a compression check, 65 on all cylinders. Pulled the head. Found a bad starter. Installed...

Im im san diego california. Is there any apex mechanics in southern cali? Also, if I had a bent valve, wouldnt only one or two cylinders be low compression? I have 80 on all 4 cylinders.

Are these motor a interference motor? What about the multiple lines on the magneto? Sm doesnt say which line is 0°.

I went back to recheck my timing. according to the service manual, I have to line up the line on the magneto with a stationary line on the case. there are 3 lines on the magneato as you're turning it clockwise, two close together and 1 a little bit further down. which 1 is the TDC line? The sm...

Anyone out there?

hey guys, new to this site and definitley new to the rx10ml. i have a 06 apex mountain engine with a mpi supercharger swapped in a polaris rzr. I was tuning it and the starter took a crap. i replaced the starter and added a thicker head gasket for lower compression (0.051 thick). my compression...