Bautbaut
New member
May give it a shot yet. Simple to change the chain and sprocket on the jackshaft. But it defeats the purpose as I needed/wanted higher road speed than my 5000rpm gx270 gave me.
That is a very large cam. The targeted rpm is 7500 rpm. At 5000 rpm you are just getting into the power band. Also that cam says it should have 30 degrees of ignition timing. I doubt having your timing at 28 degrees is hurting you that much but I would set it at 30 degrees. I'd also go to 10.0 gear ratio and see how it responds.
wow. That's a lot of rpm to go thru before hitting the 'meat'
Good catch! Most people don't realize there are 2 different needle and seats. One for gravity feed tank and one for fuel pump feed.