March 31, 200917 yr Hi, anyone got a manual or know the ring gap and piston skirt to liner clearance as i have located an oversized piston (ebay) and its winging its way over to me. I have got the barrel mounted on my old van norman boring bar ready to go as soon as the piston gets here and i can give it a good measure up. The barrel was on its second bore and the piston was standard!!! and it had a fair old rattle to it, its amazing that someone would put an engine together like that. Cheers Dave
April 1, 200917 yr Geez the motor must have sounded like a tin can full of nuts and bolts. If your Cota is a 70's vintage go to southwestmontesa.com. On the home page on the left hand side, scroll down to Repair Guide and you will find a full Manual for Montesas which you can download for nothing. If that does not answer your question, send Jared Bates (the owner of the place) an email and he will give you the answer. Regards
April 1, 200917 yr Author I will check it out, i have bored the barrel and have 3 thou clearance with around 5 thou ring gap and the motor sounds sweet. I never knew they had so much compression !!! Dave
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