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    low end power loss 150 blk max

    any suggestions on where to start looking for prob. leading to no low end power in my 96 black max? runs fine once cleared out but cant hardly get kids on tube on plane now. use to jerk skiiers up with no prob? currently pre'mixing at 50;1 using ngk bu8h plugs.
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    merc 150 lost holeshot?

    3rd yr with boat. running great until this year. mid and top feel fine just very sick feeling holeshot in comparison to prev years... any suggestions? prev owner had removed oil inj. sys. so naturally then been mixing 50:1. i know that inj. sys. mixes much more lean at lower rpm. is this...
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    who made my boat???

    just bought last year a 18' F/S boat with 150 merc. excellent little boat but i have been unable to find out anything about the maker QUANTUM. i will come across some for sale once and a while on the net but thats about it. does anyone know anything about this boat?
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    1967 merc 500 thunderbolt prop?

    Just bent prop tonight that has only been used 5 or 6 times since replacing a "spun" prop. The extra came with the boat which i have had for a short time anyway. Should I have prev. prop with bad hub rebuilt, bent prop repaired, or find new one all together? Both are cheap aluminum props. I...
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    fuel ratio

    please tell me ideal fuel mix for 68' merc 50hp thunderbolt #2119719<br />thanks as usual
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    removing thermostat 68' merc 50hp

    67/68 thunderbolt ign. #2119719<br />I am having trouble with my pee pee! :) <br />Impeller is new and working fine. However when I force water through water pick up tube in lower unit, it will soon return out of the bottom but does not pee. I had found that prev owner had pinched the rubber...
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    merc 500 50hp thunderbolt wont open up :too much gas???

    bought 67' 50hp merc ser. #2119719 last year well maintained garage kept whole life. since 1st run on water, seems to reach only half potential. acts like its getting too much fuel and wont clear out. new plugs and cleaning contacts in distributor cap are about all i have done other than new...
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    broken magnet in trolling motor

    I recently acquired a boat that had been sitting in the weather for a few years. While digging through the leaves in the bottom, I discovered a good looking trolling motor.<br />Immediatly I connected to a battery and found that it did not work. Prop would not freely turn, so i forced...
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    High Speed Miss 68' 50hp merc.

    I recently purchased fishing boat with a mercury 500 thunderbold (50hp) which is a 1968 model. Engine starts and runs great, however just will not open up and go. Backing the throttle down smooths things up immediatly. I purchased knowing of the problem, and being pretty savy with engines, I...
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