StarFire GenII GT 80 engine help???

Discussion in 'General Questions' started by pedropete91, Jan 20, 2016.

  1. pedropete91

    pedropete91 New Member

    Hey guys i am looking at getting another motorized bike. I'm thinking about getting the StarFire gen III Gt5 SUPER RAT is this a decent engine to get? i have a few questions to ask if that's ok..

    1) This motor has a integral CDI straight from the solid state magneto if i wanted to upgrade the cdi would this still be possible?

    2) The motor also has a fan built into the motor to cool down the magneto would this really make any difference? with my old motor i did go through 2 magnetos maybe they got to hot?

    3) Finally do slant heads really make any difference in power or compression?

    also are rock solid engines still makes engines or ?

    cheers Pete

  2. crassius

    crassius Well-Known Member

    I recall that fan being added because CDIs were overheating regularly - I don't know if the fan solves that problem.
  3. butre

    butre Well-Known Member

    the fan doesn't solve the problem, you have to drill vent holes in the CDI cover.
  4. crassius

    crassius Well-Known Member

    latest versions I've seen are made with holes at bottom of case

    only newer one I have here grenaded the rod bearings so hard the cylinder cracked after about 2 months use, so I'd guess the CDI was still working at that point