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    1977 Merc 1150 need help

    I bought a bass boat from Tenn. and we stopped in texas on the way back boat ran great. When we went fishing 2 weeks ago in New Mexico the boat had no power (7500 feet above sea level) so I checked with merc and they told me to change the jets in the carb from .074 to .068 jets. I took the cover...
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    How do I put new jets in carb.

    Hello over the weekend I went up to the mountains (8000 feet) and the boat ran good but no power. I tried everything hotter plugs, octane booster, air fuel mixture, new lower gear oil. I even checked the compression 135 all 6 cylinders. Coming home we stopped by another lake at 4000 feet...
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    Mercury carb jetting question

    Hello i have a 1977 mercury 1150 tower of power motor. This last weekend i went to the mountains and ran the boat no power The marina told me to re jet the carbs. I cant find a chart that tells me what jets I need to run at 5000 and 8000 feet. I also dont know where the best place to find jets...
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    Trying to figure out what cable I need

    Hello I have a 1977 Norris craft boat with a Mercury 115 Hp on it. I have read the hard steering posts and decided I need a new cable. I looked on the steering cable and found a p/n III BIA 158-75 13FT MO969 or the last 5 are (MU969) I went into the parts section and none of the part numbers are...
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    prop or fuel problem need help

    hello I have a 1978 mercury 115 hp inline 6 cylinder blue band motor took it out for the first time yesterday. its on a 16 foot bass boat. The numbers on the prop are 48 72506A-4 21. When I opened up the throttle it would only go up to 2000-2500 rpms and was going to slow to get up on plane. me...
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    first time in water today newbie question

    hello im a new used boat owner. I purchased a 1977 mercury 1150 blue band motor. I have changed the plugs, decarbed it with seafoam and fuel. It has a 13 x 17 prop on it. well today was the first launch 2 people 500 pounds total, 35 gallons of fuel? 200 lbs. And my 16 foot norris craft bass boat...
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    1977 Mercury1150

    I just bought a 1977 bass boat. Ran some seafoam thru the motor to clean. Then ran some fresh gas to clean out the seafoam. Motor is running great. After that I changed the plugs, impeller, gear oil everything brand new. I took the dist cap off and was going to change the cap and rotor. But the...
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    old johnson 18 Seahorse help

    Hello I just purchased a 16 foot alum. fishing boat. I took it out last week and it ran fine all day. But seemed alittle slow (rpm,s not high enough) Before I went out ran it in a barrel for 20 minutes it sounded great. Im using 50 to 1 oil mixture and new gas. So I was going to take the carb...
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