99 cr 80 question!!

chris642 · #1 03-17-2005, 07:13 PM

hey guys, i just picked up a 99 big wheel cr 80 for real cheap. a big question that i need answered is if the cylinder is nikasil coated or not? it needs a top end rebuild soon and i want to know if im gonna need to bore it. it runs good, but it bogs down about halfway through the gear then it just goes. im not new to 2 strokes so i know this is not the normal lack of bottom end. im gonna check out the air filter and carb for junk tomorrow. thanks!!

dupa608 · #2 03-17-2005, 07:29 PM

I had a 96 cr 80 and if I remember correctly it had a coated cylinder.

chris642 · #3 03-18-2005, 05:18 PM

thanks, does anyone know the stock jetting specs on one? it has a fmf pipe on it and maybe they didnt rejet for it. also, whats the normal compression for one. it has 150 PSI and i dont know if that is low for a cr80. i have a built banshee, so i dont know to much about bikes yet.

mossman · #4 03-22-2005, 08:45 PM

Yes, in stock form its a plated cylinder. I would say 150psi sounds pretty good for a stock CR80, I wouldn't worry much unless it drops down to 140.

Good Luck,
Joe

Michael Parker · #5 03-22-2005, 09:53 PM

It is nikasil plated and as far as boring. I would take it to a machine shop and have them hone it like .001 or somewhere around there.

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