2004LEBanshee Posted April 22, 2014 Report Posted April 22, 2014 Buddy on here has a cheetah he bought. He says its a 16 crank with a 72 bore? Is that correct? Or could it be 73.5 610? Checked the cp industries site but it was older the the old redline site. Says the guy who sold it said it was a 570 something. Quote
2004LEBanshee Posted April 22, 2014 Author Report Posted April 22, 2014 Well im 30 min away and at work smart ass. Does the cheetah come in A 72 bore? Simple question for someone who knows something about them. Quote
BuckeyeShee21 Posted April 22, 2014 Report Posted April 22, 2014 Its my motor... and I bought it from a member on here. finally got it in my bike and running today. Compression and leak down tested great so why would I take the head off? If you cant help with the question than dont reply. Owner said it was 72mm bore 16 mil. That would make it 570cc....is that possible? Quote
2004LEBanshee Posted April 22, 2014 Author Report Posted April 22, 2014 Thanks. Buckeye did trust the previous. I threw in doubt when i thought there was only a 73.5. There isnt a chart anywhere so i posted here to ask. So its possible its a 68 as well. Quote
BuckeyeShee21 Posted April 22, 2014 Report Posted April 22, 2014 No I believe him... great seller... just never heard of that combination. ... I thought all 68's were cubs? Quote
n2otoofast4u Posted April 22, 2014 Report Posted April 22, 2014 Mine was 74.5 bore. CP would cast nearly any combination you want as long as the bore/stroke were compatible with the cyld. Sent from my SCH-I545 using Tapatalk Quote
WINDYCITYJOHN400 Posted April 22, 2014 Report Posted April 22, 2014 68 72 72.5 73 73.5 74 74.5 etc. Quote
camatv Posted April 22, 2014 Report Posted April 22, 2014 you can get any stroke, bore combo. MOST times the intended bore is cast in the intake at ther reed cage sometimes the stroke is in there alos. you can usually measure the height of the cylinder to determin stroke also. if your super cool you can usually guess stroke by the space under the head. if its thick its a lot of stroke. if its thin not so much. so you oh its a 421 cub dicks with 10's yea i see ya. is the 16in stock cases? if it is there should be an ass ton of case work to get the crank to fit. to double check the stroke you can measure that through the plug hole. some of the best running motors i have personally seen were 14 cheeta, and 16 cheeta. one 73 bore adn the other was a 75mm bore. i FEEL the lighter pistons let the motor rev much much easier. cubs are a different casting. Quote
BuckeyeShee21 Posted April 22, 2014 Report Posted April 22, 2014 Thank you for the info. Yes, it is stock cases. Appears a ton of work was done to them. It is a Nate McCoy motor. Im 90% sure its 72 and 16. I will use the info you gave me to check. Quote
BuckeyeShee21 Posted April 23, 2014 Report Posted April 23, 2014 Yup... that would be where I got the 570cc from.... husker fan just doubted me thats what I had. Quote
Starwriter Posted April 23, 2014 Report Posted April 23, 2014 Measure the stroke with calipers. Read the number on top of the piston with a borescope. Don't have a borescope? Make friends with a local auto tech that has one. It's amazing what you can see inside a motor with one. It's even worth taking one with you when you're going to look at a bike you're thinking about buying. Quote
trickedcarbine Posted April 23, 2014 Report Posted April 23, 2014 Bore scopes or even the construction cams at Home Depot or lowes will get ya in there. The Milwaukee one goes in nice. Quote
360Bansheelab Posted April 25, 2014 Report Posted April 25, 2014 I have a 10mil 72 bore 521cc Cheetah Quote
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