I'm close to running Mike Bates open star, he was sure it was plenty enough in 2012, and he didnt . but this one is right...
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Probably too old a post but....the tecumsehs are great ! i ran flathead opens for years 86-93 used the 5 hp-8hp block (look same on outside) we used a 6hp crank that could be cut to 1 inch main jornold we got 300 thou stroker ,140 overbore our team domanated that track for 5 years won all points races for 5 years in a row . our engine man built a tecumseh FH that had a forged horstman BRIGGS std stroke crankshaft BUT had some HUGE ! piston aries i think ? it could not be beaten but that was some years ago before all the OHV stuff , we quit when clones hit ! joined the VKA back to b-bombs / macs for fun
No. It's barely enough motor to take on a kt100 open. Find a 250f or Sudam125 they are both low maintenance motors and great for startersI run at a fairly long track, with lots of bank to it, most of our opens are gx390 or briggs 342's, does a star motor still have a chance against these guys?