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Hey guys just recently got a mates old Ducar 125cc pitbike, as it was in very average condition and blowing smoke i thought id get it and do it up. after getting it started and the amount of smoke coming out i new it was the rings. i pulled the engine down and found the rings totally worn out...

Hey guys I was recently pulling my head down for a port n polish! but as i was getting one of the valve stem seals out i broke it!! does anyone know where to buy new ones? the motor is a ducar 125? Also when i put the valves back in should i put anything on the valves or just normal oil...

After discovering smoke coming from my crank case i realized it had to be the head gasket failure! took the head of on found this!! Would this carbon build up be from when it was burning oil? should i be concerned? After replacing the headgasket seems to be running great! i Will be...

I have an atomik 125cc pitbike with a ducar engine and a MIKUNI 25mm CARBIE just woundering whats the best filter to get? and also what size filter do i get? cheers

i recently bought a atomik motox 125 after hearing lots of different opinions i decided to run the bike with what china oil was in it! I let it idle for a couple minutes then took it for a 5 min ride i then came in after noticing it was running very hot and slight smoking! i then dropped the...