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Hello. Building a scale military patrol boat powered by a homelite 30cc water cooled trimmer engine with clutch and water pump (powered by engine vacuum). Where should the pump water intake come from ? Right now on the rudder blade there are 2 water nipples, should i run a line from there to...

Building a 50" patrol boat, powered by a homelite 2 cycle watercooled trimmer engine, with engine, radio, gas tank with gas, strut and rudder installed, boat balances at 21.5" from stern. Does this seem correct ? IVe had the boat in the water and it sits flat. THE ONLY PERFORMANCE REQUIREMENT...

Hi. I picked this up as part of a package.I will not use this.Motor has great compression. A while back i asked for help from this forum on identifying it, someone said .67 another .65 ? Price is $150 plus shipping.This will ship from Canada. Payment would need to be made with United States...

Hello. I recently acquired 2 k&b engines.An outboard and an aircraft engine both are 3.5 cc.Are the parts interchangeable? Such as piston/sleeve etc.What version outboard is this? Is this a 12mm or 13mm motor ? (What measurement does this refer to) ? I believe the aircraft engine is ,# 8380 on...

Hi.I need propeller recommendations for 3 different boats.First i need a prop for a k&b 3.5cc outboard (stock, un modified) on a 30" wood tunnel hull. Second a prop for a 30" deep vee using a 3.5cc inboard( .21dynamite car engine with a tuned pipe).Im interested in sport boating only, 30% nitro...

Hi.I am wanting to use a .21 dynamite nitro buggy engine in a small deep vee.It has a 4 bolt head button pattern. Are there any watercooled heads ( aftermarket) that would fit? Do all nitro car engines .21 to .28 have the same dimensions in respect to head bolt pattern (measured diagonally)?Thanks.

Hi I have this tuned pipe.It measures 13.5" Long and 1.75" at its widest point. ITS blocked at the widest end, but there are slats ( like on a grill) on the wide part where the exhaust exhausts.What is this pipe for.Can i use this on my 2 stroke weedeater engine in my boat.Im not competing, this...

Hi.I picked 2 boat engines as part of a package.The first is an ops engine i wad told a .60.Next to the mounting lug the word ops is embossed, and on the other side is the number, 658. The other is a k&b outboard,the following is embossed on the side J0037877.I heard there are different...