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    Fast Fred I tried to PM you but your inbox is...

    Fast Fred
    I tried to PM you but your inbox is full. I'll take the block but am wondering if the money might be better spent on you building a motor for me.
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    missing block case

    Recently, a Yamaha 40/50 block came up on ebay (bored over) with lower case missing. I intended to bid on it but missed out. It came with the over size pistons to match, so it was a great deal if...
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    sounds good

    I need to count my marbles. Might have to hock something to get there. will you work with me? If I could pay so much per whenever to get the motor after a few months that would be great. another...
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    How much?

    :) :) What is the motor built for , and how much extra porting ? I need a good stong 50 yamaha or tohatsu.
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    Jets for 70 carbs on 50 yamaha ?

    I've heard it mentioned here that 70 carbs will 'wake up' the 50 yamaha. What size jets does the conversion require for a stock (no port work) motor?
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    stock

    I'd like to keep it stock. Maybe slight port work. Don't want to do too much with them tho, $5.25 gallon gas here. Are there better carbs from different years?
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    :confused: So is that a yes the smaller is better?

    :confused: So is that a yes the smaller is better?
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    small or bigger counterweights?

    I'm building a motor from various parts form several 50 h.p. Yamaha's. I have two different cranks. One is older I think,it has smaller counterweights. Is there an advantage using it over the other...
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