360Bansheelab Posted May 29, 2014 Report Share Posted May 29, 2014 Ok I no this page is full of knowledge and need some help. I just restored a banshee with a 10mil Cheetah in it. I removed the PV and had the motor gone through by a local shop. On the second time out it began to run like crap, so I took it back to the shop. They tore into it and discovered the one of my reeds (VForce 2) had a broken pedal. With further review they discovered that one of the screws (typical) came loose from the reed and took out my piston and dome. Where is where I need advice... It has 125mm rods, 72.5 pistons with 18mm wrist pins. I have been told that these pistons with 18mm wrist pins are obsolete and only a couple left in existence and cost $350-400.00 a pair. Is that true? Does anyone know of a vendor that I can find these? Thanks in advance Quote Link to comment Share on other sites More sharing options...
m671054 Posted May 29, 2014 Report Share Posted May 29, 2014 Again, call wiseco with the piston number Quote Link to comment Share on other sites More sharing options...
registered user Posted May 30, 2014 Report Share Posted May 30, 2014 712MO7250 is a 72.5 with 18mm pin . 536MO7250 is another one. they shouldnt be much more than 100 bucks i wouldnt think Quote Link to comment Share on other sites More sharing options...
camatv Posted May 30, 2014 Report Share Posted May 30, 2014 if they dont have windows cut in the skirts dont sweat it. plus those 2 part numbers. the O is a zero. not the letter O Quote Link to comment Share on other sites More sharing options...
360Bansheelab Posted May 30, 2014 Author Report Share Posted May 30, 2014 if they dont have windows cut in the skirts dont sweat it. plus those 2 part numbers. the O is a zero. not the letter O[/quote 712MO7250 is a 72.5 with 18mm pin . 536MO7250 is another one. they shouldnt be much more than 100 bucks i wouldnt think Awesome! Thank you. Quote Link to comment Share on other sites More sharing options...
360Bansheelab Posted May 30, 2014 Author Report Share Posted May 30, 2014 No windows in them. :-) if they dont have windows cut in the skirts dont sweat it. plus those 2 part numbers. the O is a zero. not the letter O Quote Link to comment Share on other sites More sharing options...
360Bansheelab Posted May 30, 2014 Author Report Share Posted May 30, 2014 712M07250 look like they are for a 73mm stroke and require nykasil cylinders 536M07250 look like they are for a 60mm stroke. I have a 63mm stroke because of the 125mm rods. Any other ideas? Thanks for the input guys Quote Link to comment Share on other sites More sharing options...
m671054 Posted May 30, 2014 Report Share Posted May 30, 2014 No you dont. Rods do not affect stoke. Those part numbers are not specific to your motor but should work. The piston from cp most likely was xxxxxm07250. Quote Link to comment Share on other sites More sharing options...
360Bansheelab Posted May 31, 2014 Author Report Share Posted May 31, 2014 No you dont. Rods do not affect stoke. Those part numbers are not specific to your motor but should work. The piston from cp most likely was xxxxxm07250. Your right, found the original build sheet. It's a 64mm stroke with Wiseco 71.92mm pistons. Louie from Twister is currently trying to locate a set. Apparently there is something abnormal about them and aren't that easy to locate. Quote Link to comment Share on other sites More sharing options...
m671054 Posted May 31, 2014 Report Share Posted May 31, 2014 Your sure its a cheetah? Is it a billet or cast cylinder? You usually dont bore a cheetah cause its nikasil coated.if it needs recoating you might have it bored and replated at a more popular size like 73mm. Quote Link to comment Share on other sites More sharing options...
360Bansheelab Posted May 31, 2014 Author Report Share Posted May 31, 2014 Your sure its a cheetah? Is it a billet or cast cylinder? You usually dont bore a cheetah cause its nikasil coated.if it needs recoating you might have it bored and replated at a more popular size like 73mm. Yes it's a cheetah with cast cylinder luckily for me it's not nikasil so it can be bored. Quote Link to comment Share on other sites More sharing options...
registered user Posted May 31, 2014 Report Share Posted May 31, 2014 esr i think has 72.5 wiseco with 18mm pin also. not sure on part # though. you have several (atleast 3 that i know of) options in 72.5 with 18mm pin if you need 72mm i think theres a few bikes using that size so you should have several options there also. if you cant find them special ones im sure something else will work fine Quote Link to comment Share on other sites More sharing options...
m671054 Posted May 31, 2014 Report Share Posted May 31, 2014 Yes it's a cheetah with cast cylinder luckily for me it's not nikasil so it can be bored.so you have a sleeved cheetah? Quote Link to comment Share on other sites More sharing options...
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