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Old 05-08-2007, 08:13 AM
timbo timbo is offline
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Default help with chain and sprocket

I got a frame from a friend that had wheels and tires to put on my kart. It had a sprocket on the drive wheel with a chain going to a smaller sprocket operated by a pulley. There was no motor and I am going to use a system where the chain goes directly to the clutch (no pulley). How can I get the right clutch with a smaller sprocket to match the chain and larger sprocket on the drive wheel assembly. I guess I just need to match everything up. I was thinking about getting a new chain too that adds another thing to match up. I guess I need help to find out what size chain goes to my drive wheel assembly. How do I do that to match with a new clutch.

Last edited by timbo; 05-08-2007 at 08:21 AM.
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Old 05-08-2007, 10:37 AM
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robertdjung robertdjung is offline
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Hi Timbo -- You need either a 35 "pitch" chain, or a 40/41 pitch. You can find this out by looking at the teeth on the sprocket. http://www.gokartsupply.com/tips.htm shows what you need to know about chain sizing.

Best of luck, and yes, I agree you should have it direct from the engine to the clutch, clutch to the sprocket.
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Old 05-08-2007, 01:30 PM
timbo timbo is offline
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I don't want to sound like a dummy but I still don't get it....sorry. How do I determine the pitch from the teeth? count them? I did notice that the teeth on the large sproket are "leaning" forward it looks like, instead of straight up and down like most that I have seen. I just don't get it? Should I just buy a new sprocket to match the one on the clutch?
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Old 05-08-2007, 04:21 PM
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no problem, should've been more clear -- the pitch is the distance between teeth. So, for a the chain info -- the pitch is the distance between the center pins in the chain.
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Old 05-08-2007, 07:37 PM
timbo timbo is offline
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ok....that makes sense I get it now. Thanks......by the way I just took some pics of my kart and some of the junk (other karts for parts) around my back yard. Needless to say that every time I go into my back yard to work I hear the theme song from Sanford and Son..........well how do I upload pics from my computer here?
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Old 05-08-2007, 07:52 PM
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oh well I keep getting an upload failure message..........I'll try again later
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Old 05-09-2007, 02:03 AM
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might be too big -- any way to shrink them you have?
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