KymcoForum.com

Scooters - 125 to 300 => Bet & Win 250 => Topic started by: Black Adder on May 28, 2012, 01:28:38 PM

Title: B&w 250 crankshaft problem - chain sprocket needed
Post by: Black Adder on May 28, 2012, 01:28:38 PM

Hi,
I have a problem with changing crankshaft bearings on B&W 250. Actually broke chain sprocket. Any idea where I can find new/used part online, complete assembly of crankshaft is not option, only lower chain sprocket.
Thanks

Title: Re: B&w 250 crankshaft problem - chain sprocket needed
Post by: NigelB on May 28, 2012, 08:23:29 PM

Try www.stadiumyamaha.com (http://www.stadiumyamaha.com).
If the price is not displayed, send them an email.

Title: Re: B&w 250 crankshaft problem - chain sprocket needed
Post by: zombie on May 29, 2012, 12:09:11 AM

For used parts search Ebay. Look for any used Mc./Scoot. part, and then follow the link to sellers store. Most of the used sellers on Ebay are actually salvage yards parting out bikes. I am under the impression the crank is one machined piece. I do not know that the gear is separate.

Title: Re: B&w 250 crankshaft problem - chain sprocket needed
Post by: Black Adder on May 30, 2012, 11:30:35 AM

I v' done a little inquiry, if i wanted to remove sprockets i should have used liquid nitrogen and heather. I have not tried to remove bearings with classic bearing remover. I managed to remove upper sprocket but lower, the nightmare begun :) Difficulty to find part goes in favor to the theory that Kymco really is a good engine. Anyway thanks for the advice, if I find the solution, will post.

Title: Re: B&w 250 crankshaft problem - chain sprocket needed
Post by: bobmoorman on December 12, 2012, 04:10:14 PM

I just rebuilt a Bet Win sh50ca 250 engine. I have the old crankshaft if you still need the sprocket.

Title: Re: Re: B&w 250 crankshaft problem - chain sprocket needed
Post by: Trancebear on December 16, 2012, 04:16:17 PM

I just did a 300cc upgrade and I also have the stock cam and sprocket available. Came off my own scooter with 6k miles on it.