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HELP ME Adam bike doctor, youre my only hope?

my piston blew in my nrg mc3 air cooled, so i replaced it with a malossi 70cc piston/bore kit. everything was fine, then after about 15 miles the bike cut out,literaly everything shut down.
I pulled over, had a fag, then kickstarted it, and off I went.
the next day, same again.
got it restarted, as per above, got another 2 miles, cut out again, and hasn't restarted yet. (had to push it 5 miles down the A20 to Wrotham-killer)
when i tried to kick start her, all i got was one medium size "pop" from the exhaust.

I've just about had it-

Sinbad the sailor
January 2011

Vehicles, Motorcycles Help Adam Piston

oh dear it doesnt sound good mate,the top end has had a few little seizures then a good one!now its too low on compression to start.im afraid yiour going to ahve to take the top end back off and have a look in there and see how bad it all is.i think you may either have an oil pump problem or you may have been a little bit to hard on the throttle too soon.when you have found out whats wrong with it and sorted it out yopu need to check the oil pump is consistant in its oil delivery and also generoud enough.these oil pumps run of a heical cut gesr on the drankshaft and they often wear out if it has then i would say add oil to your fuel tank at approx 25ml of oil to each litre of fuel.sotty for the late reply i have been very busy at work(more broken bikes)

adam bike doctor(of milton keynes motorcycle centre)
January 2011

no iiiiiiiiiiiiiiiiiii'd only done a total of about 40 miles, then the problem started

Sinbad the sailor
January 2011

sounds like piston or piston rings.strip it and check. did you run it in for at least 100 miles .

rayb
January 2011