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Ok, so I have a Robin Subaru EX17 (169cc) engine and I took the cylinder head off and the head gasket, it's an all metal head gasket. I remember seeing this dark gray stuff on it, thought it was carbon build up, so I scrapped it off. After I put everything back on and made sure that the ignition...

I have been searching all over the internet and haven't found anything on this yet. Does anybody know the dimensions of the gx200 exhaust flange? (i.e length apart from the exhaust stud holes, length, width? thickness not needed) thanks :thumbsup:

Ok so I have this lifan 125cc and I recently took off the carb to see what kind of jets it had. I put it back together now it doesn't start, it started before but was alittle difficult but would still start. I cranked it aleast 50 times and it would to fire over. What did I do, any advice?

Ok so I have a Robin Subaru EX17, it has a mikuni 22mm carb and runs alright. I've put in a 130 main jet and left the stock pilot jet at 15. I know the main jet is alittle rich so, should I put in a 125 or 120 main jet. Right now the top end doesn't pull as hard as i hoped it would. Reason why I...