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Messages - polecat

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European and Other Bikes / Re: jawa cz 125cc type 488.1
« on: September 14, 2016, 07:47:54 AM »
had a night off and a few beers i've cracked it it was me i'd done a bit porting work and not radiused the edges of the ports enough all ok now thanks for the support lads
polecat

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European and Other Bikes / Re: jawa cz 125cc type 488.1
« on: September 13, 2016, 11:10:55 AM »
thanks rgsjohn will try your suggestions and come back
new conrod kit fitted by motorcycle garage all seems ok  will have a play and get back
thanks polecat

3
European and Other Bikes / Re: jawa cz 125cc type 488.1
« on: September 12, 2016, 03:33:34 PM »
the crankshaft has new conrod big end shims and new pin looked ok was free  rolling so what can it be that is tightening up has to be the piston in the bore some how i could just bin it if i hadn't put so much money in it i need a break from it a couple of nights
thanks polecat

4
European and Other Bikes / jawa cz 125cc type 488.1
« on: September 12, 2016, 08:54:24 AM »
morning lads i need a bit of guidance new conrod fitted engine is free fit piston and barrel and the engine tightens up about 1" from the top turn the crankshaft and it goes past ok but it tightens again at the same spot whats wrong
polecat

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