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  1. G

    WTB 3.5cc outboard SS exhaust adapter

    Looking for a new or used exhaust adapter for the SS tuned muffler. Part number 30-8922. Thanks, Grayle
  2. G

    K&B 3.5cc running trouble?

    I was able to get the front and rear bearings out. The PTO bearings both feel good, The crank bearings felt a little rough, especially the rear. Where should I buy new bearings? MECOA?
  3. G

    K&B 3.5cc running trouble?

    Okay here are pics of the crank. I really appreciate all the help. Thanks, Grayle
  4. G

    K&B 3.5cc running trouble?

    yeah you know the engine never really ran good from day one. The engine never ran long enough to even warm up! Luckily I'm a machinist and I will probably be able to get those bearings out. I want to get the crank out to check for scoring.
  5. G

    K&B 3.5cc running trouble?

    How do I get the flywheel off? Are you serious that the engine isn't worth rebuilding? So do I also need a new sleeve and piston? How much will these bearings cost and where is a good place to buy them. I remember taking good care of it when its was new. but that must have faded long ago...
  6. G

    K&B 3.5cc running trouble?

    I was able to remove the sleeve assembly. Th piston looks scuffed on the lower exhaust side
  7. G

    K&B 3.5cc running trouble?

    I live near minneapolis, mn I don't see fuel coming out of the flywheel area. on the stand it does seem to run okay but sometimes it just quits. I took pics of the crank. Should I disassemble the crank further? The sleeve looks a little scored. How do I remove the piston. I think it may...
  8. G

    K&B 3.5cc running trouble?

    So How do I get to the crank? get the power head off and take the lower 4 screws out above the gasket that is near the lower unit? The main tank has a clunk and the hopper/burp has it in the rear corner(from the back of the boat its on the left side. I just want this boat to be more reliable...
  9. G

    K&B 3.5cc running trouble?

    Hi, This is my first post. Okay, I have a dumas hot shot sprint that I built when I was about 14 years old and I am now 31. I have always had problems keeping this boat running. I have never been able to run a full tank thru without it quitting. I fly planes and know how to set these tanks...
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