The 40 stamped on the sprocket is the number of teeth on the sprocket not what size chain its for put the chain on the front sprocket look at how it sets down on the teeth then do the same thing with the rear sprocket if it doesn't look the same on both its for a different size chain
Okay. I measured the thickness of the front sprocket, at .284", the rear sprocket at .253". It is a 40-tooth, 40 pitch sprocket according to the stamping.
Tank, the numbers were lined up like you suggested. But, you can roll the chain up and over the sprocket (new chain, BTW) and it climbs off the sprocket.
Sounds like wrong chain. Are you sure its 40 chain on 40 pitch sprockets. Something is bad wrong to bend a tooth over on the sprocket that or sprocket is wore slap out.
George, I think the chain is okay. I went to a local cart shop, they didn't have 40 anything, but I saw 35 and 50 pitch, and my sprocket looks somewhere in the middle of them. So I am pretty sure it's somewhere near a 40, unless it's a 41?
check your sproket holder.....a 40 tooth sporket will only fit on a certain holder or the side plates of the chain hit the sproket holder and it will not allow the chain to sit in the sproket all the way. i know i had this happen.
You know what, you're right. it does exactly that. The front sprocket allows for no movement of the rollers when the chain is seated, however the rear sprocket does allow for some movement. You can see where the chain rides directly on top of the carrier. No Bueno.
Here's what I', going to do fellas, and I appreciate all the input. I am going to replace the rear sprocket with a 42 tooth, but refigure my math to keep the ratio the same. I think another sprocket with a tad more diameter will do the trick...I hope.
Thanks everybody, I love this board! Everybody's so willing to help.