Need a little jack shaft help

[ramairgtz]

I just started building and fixing go karts a few weeks ago so I still have a lot to learn. I have a carter trail runner kart, 11hp industrial briggs engine and a brand new comet 40 series torque converter. Here's my problem I need a 5/8 jack shaft and I have no clue where to start. I have seen engine mounted plates for a 5/8 shaft for the yerf dog karts and I also found a mounting plate for the comet tav30 that has 5/8 bearings but no shaft. Or I could buy a weld on kit but the ones I have seen use 35 chain sprockets and I'm running a 41. Any suggestions?

 

[Kaptain Krunch]

your sure its not 3/4? 5/8 seems a bit small for a 40 series.

 

[r97]

look here http://www.bmikarts.com/shop/?shop=1&cat=272

 

[redsox985]

Why not run 40 chain? It's nearly identical and worlds stronger. They are interchangeable yet so different.

 

[ramairgtz]

Kaptain Krunch I bought 2 of these set ups from a guy 1 new and 1 used and they both have a 5/8 bore on the driven pulley. redsox985 I don't have a chain for this kart yet so I will but a 40 chain.