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  1. CobraII351

    Normal break in or overpowered?

    Swapped out the jackshaft assy. on the Murrary Hard drive for a new knock-off TAV2 with a 7" driven. It's a 5.4:1 after the TAV (we have the sprocket to do 6:1 and 6.7:1 if need be). It takes off decent but then lays down a bit but picks up speed on the flat.Going up a hill seemed real "doggy"...
  2. CobraII351

    TAV ratio question.

    OK, have a question. Murray Hard Drive. HF Clone engine with a few mods. We put larger tires on it than stock. ATV 16x8-7 tires. This thing was seriously abused by the former owners and my Buddy and I resurrected it. It has a shudder when taking off from a stop. The clutch is fairly whipped...
  3. CobraII351

    Wheel bearings?

    A friend and I bought a Murray HardDrive. We got a great deal but it needed some work. The 2 of the 4 front wheel bearings were siezed and the 3rd was almost, only 1 was actually spinning as it should. We got new wheels with bearings and tires for it, But we had an idea instead of just...
  4. CobraII351

    Cobra II project kart.

    Well my original thread was lost and not really in the correct section So I'll repost here in the right place. This is the body and original frame I bought. http://www.facebook.com/album.php?aid=2076433&id=1203018944&l=a57e0070d5 I bought this off a good friend about a year ago and finally...
  5. CobraII351

    Diff rear axle

    I bought a older kart for my daughter. I pulled the old very small unknown motor (doesn't look like any Briggs or Tec motor I've ever seen). It is currently 1 wheel spin after the addition of the HF clone. I'm thinking about a rear diff from Northern Tool has anyone used one of these and with...
  6. CobraII351

    Hello from central PA.

    Hello all. Awesome site and forums. Lots of excellent info here. I recently purchased an older kart for my daughter. I couldn't resist as it had a fiberglass Mustang II body that matches dad's car. :D Tim
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