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I rebuilt my K&B3.5 powerhead. Any suggestions on break-in? Fuel, needle settings? Also, as far as prop balancers go, does the magnetic one from TopFlight work OK? I have a new Prather 215 to start out. Thx, Jon

Can someone please post a picture and/or description of a throttle linkage cable clamp for this engine? I am thinking of just making an L-shape piece of brass with a short piece of brass tubing soldered on top fastened with a 4-40 bolt/nut thru the upper crankcase mounting hole. Or should I...

I picked up a K&B 3.5 IB on ebay. I think it is #8912. It has never been run and is in very good shape. I reversed the crankcase configuration to put the muffler on the back side in order to allow the venturi to be rotated up instead of on its side. (See picture.) Will the engine run in...

Hi, I bought a used tunnel hull that came into the local hobby shop and it has a K&B 3.5 OB. See attached pic. It looks like it is an older model K&B by the look of the con-rod and head, but it is in good shape. It has a Perry carb on it. Anybody know if the Perry used to be standard...