montesa 348 kick trouble

does anybody know the original thickness of the ossa mar central case gasket?....i want to know so i can get the correct -same thickness as original gasket ,in oerder to avoid shimming changes.......The old gasket seems to average at 0.025 inch ive got a new one from vintco and it mic's at 0.030 inch ...

problem solved! tools used,4 1/2 '' angle grinder with grinding disk,dremel with tiny griding disk,flat chain saw file and micrometer....first i ground two oposite sides to 12mm nice an parallel to each other getting as close as i could to the shoulder without touching it.then the other two sides.then ground the corners to 12mm...then rounded it with a flat chainsaw file ..touching up the bottom bit with the little dremal grinding disc..now i have 12mm shock mounts top and bottom...only took about an hour each..

Ozo shocks come stock with 12mm mountings top and bottom. How the hell do I change the bushings out for the top mounts on my mar. They are 15mm I’ve tried to contact PMK He’s done it. But I don’t know my way around this site yet. I wrote him all about it but the message wouldn’t send. It said someone else had my email address. Holly crap! So frustrating

Ozo shocks on Ossa mar. How do I change the top bushings to fit the 15mm Ossa mar top shock mounts. And where do I get the larger bushings and sleeves

ok ill do a leak down test.......there probly dryed out/not doin there job

anyone out there have an idea what im missing....Why the bike wont start....heres where its at.... the bike: 1974 montesa 25a sintrifical clutch ,decompresion ,clutch depresser all good .....have spark(new plug),has fuel...carb very clean,with new float needle valve and fuel screen and gaskets..float sits as it should/parralel to body when held upside down,and is in excelent condition......bike has good compresion....timming and spark plug gap are set to factory specs.timming at 2-2.25mmBTDC and plug gap between 0.016-0.018 one thing though....the plug gets wet with fuel and does not egnite /fire the engine...i remove plug clean and dry,dry out combustion area ,try again and same thing happens..........i try starting with no choke or choke,same thing......i was thinking mabe the float valve seat could be pitted and alowing fuel past.........i still have to examine that....any ideas would be greatly apreciated....id like to get this bike going while my boys are still small enough to use it.

im having trouble with my 348 kick ,,it is slipping i guess.....what should i do?

my bike has the same problem...did you ever fix it? my bike is a 1976 348 montesa trial