Recent content by Curflo

The vibration is more than likely the cause .. The rod is more than likely seized to the crank . No big deal just replace rod an polish the crank

Alot of two ring pistons use wider expander rings with much larger oil drain back holes . So my guess would be a 3 ring piston only using 2 rings would smoke really bad because of the oil being trapped and not draining back

Only 2 nuts hold that item on an engine , are you sure it came from him that way ? From the looks of that top plate that is a older engine .. Most builders now have cut top plates with their names etched in it .. im just saying thats kinda bad business

What rpms are you turning ? Is the motor lugging off the corners , thatll cause heat ..

As the guys are telling you , average adult clone is anywhere from 6800-7100 depends on who and when it was built

Not tryin to start a argument, but ya should shop around for some different valve springs then ..

He says in original post he has a mod 2 cam they are not a high lift cam it has big duration

I cut .075 off the last 2 non hemis I did but both of those were around .030 in the hole an used a .010 head gasket

Unplug the oil sensor and disconnect the vent hose on the top of the gas tank

Another factor you have not told is what carb is on the engine different casting require different jets

More than likely you are off on gear

Most of the tracks here in the south have a 5500 rpm limit .and must look stock with all the stock parts an pieces on them .. that’s all they do is look at the engine sitting on the kart and check the rpms .. PS don’t bring a knife to a gun fight .. it won’t be fun