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    1979 Johnson V4 85 hp 2 stroke..bogs down

    At the start of summer I picked up a 1971 Larson with a 1979 85 HP V4 motor...it started pretty easily and then took it out on the motor..as I increased rpm ( to about 4000) the motor would bog down..did this repeatedly. Rebuilt the carbs on it..replaced plugs..and it ran smooth in yard (hose...
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    Tilt Trim problems on 1979 Johnson 85hp

    trim tilt was not working and there was a leak around the end cap of one of the trim piston rods..I replaced orings in hydraulic reservoir...now both piston rods for trim are "frozen" in place...I can get main hydraulic rod (tilt) to move manual only by using the manual release..any idea on how...
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    Help..ready to give up..tilt and trim problems

    I recently picked up a 1970 Larson tri Hull with 1979 Johnson V4 85hp motor on it. Trim/Tilt was not going up or down though motor was running. I noticed some oil around seal and replaced o rings and wiper in the tilt/trim reservoir and re-filled it..lowered motor down and tightened hydraulic...
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    1979 Johnson 85hp V4 with leaking oil

    I recently picked up a 1971 Larson Tri Hull with a 1979 Johnson 85 hp. Engine seems to run good, but the powered trim does not seem to work. I hear the motor...just doesnt go up or down. I manually lifted the motor after releasing the hydraulic screw on the side and noticed some oil (appears to...
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    Capacity Plates

    Re: Capacity Plates Here is a picture of my boat with a close up of the capacity plate..as you can see it shows 30 OBC Max HP..I did some research and found a formula to calculate maximum horsepower for Outboard. Length of boat times maximum width at widest point of the stern. I took 15' x...
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    Capacity Plates

    I just picked up a 1970 Larson Tri Hull. The capacity plate says 4 person capacity with 35hp max. There is a 85hp Johnson V4 motor on it. Serial number reveals motor is a 1979. The boat runs fine. 85hp is perfect for it. Someone told me insurance is void if I run it, since capacity plate says...
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    Help with Nav Lights and wiring

    I recently picked up a 1970 Larson Tri Hull. Nav Lights (Bow-red/green) and stern pole light do not work. The wiring under the dash looks like spaghetti tossed in a big bowl. There is a panel that is bolted to the dash. The left button on this panel I suspect is the horn. The next switch to the...
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    battery case for 1971 Larson Tri Hull

    I am very new to boating and learning more with each day. I recently purchased a 1971 Larson Tri Hull. It is in great condition with motor (Johnson 85hp) in good working order. I want to secure the battery. I see that there are battery cases that resemble a plastic box or a plastic frame that...
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