2-Stroke Briggs build... Need SPROCKETS!

Discussion in 'Rack Mounted Engines' started by Nashville Geoff, Dec 10, 2008.

  1. Nashville Geoff

    Nashville Geoff New Member


    My build is progressing along slowly, as time permits. Encluded are some lame pics of what I've gotten together, and a mystery pic of another, er, "motored-bike" I'm building. I've just about rounded up all of the parts needed to complete it. I'm using a 3hp 2-stroke Briggs, rack mounted, with a centrifugal clutch, running to a jackshaft via a #35 chain. From the jackshaft to the dual freewheel hub, 415 chain. I ordered 12guage spokes from Stanton today, and the 5/8 jackshaft kit. The kit comes with 13 & 18 tooth, 35 pitch sprockets. I'm thinking that I need more that an 18 on the jackshaft, coming from the 11 tooth clutch... Using the Ratio Calculator, with the 18, and a ten feeding the final 50 tooth sprocket, nets me 37.8 mph @ 4000 rpm. I'd rather use a larger #35 sprocket on the jackshaft, and a larger 415 drive sprocket, too. I also need a couple feet of #35 chain & a masterlink. Any thoughts on ratios? Who has sprockets available? I'm anticipation having to change up a few times, to dial it in, especially after I get it on the road & start to modify the engine. Thanks for the input. Nashville Geoff

    Attached Files:

  2. Hi,

    We can make sprockets for most any standard chain size....

    Happy Holidays!

  3. Nashville Geoff

    Nashville Geoff New Member

    I think that I've gotten what I need for this build from mfgsupply.com, but I've got another engine, a 2-cycle 3hp Tecumseh that I want to configure the drive with a freewheel front derailleur crank. Can you provide any parts for that? Merry Christmas, Nashville Geoff