why me...?

Discussion in '4-Stroke Engines' started by sambertucci, Jul 9, 2008.

  1. sambertucci

    sambertucci New Member

    So i got the impellor (turbine:oops:) off of my honda gx50, only to discover (to my horror) that the crankshaft is not the 1/1/4x5/8 keyed shaft that we all know and love. Instead the shaft is some smaller diameter threaded nonsense that makes me slightly ill when i look at it. Basically my question is does anyone have any experience replacing a gx50 crankshaft, and is the cost of the replacement crankshaft worth it. (I bought the engine used off of a waterpump for $50). If the cost of replacing the whole crankshaft is rediculous, are there any other avenues i can take that still render the engine useful for a motored bicycle? or am i looking at motorized box of spare parts?

  2. stude13

    stude13 Active Member

    hi; shop time is 70-100hr. spare parts bin
  3. darwin

    darwin Well-Known Member

    Whats your goal? A friction setup or a chain drive. If it were me Id be working from that and adapt that shaft to what you need. Where theres a will theres always a way.
  4. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

    A brand spanking new engine with a warranty will only cost you $210 + $15 shipping = $225 from small engine warehouse.com