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    115 4cyl backfire!

    I have a 97 115 inline four. starts and idles good. On the hose i rev it up and get a big back fire. I put new plugs in same thing. I pulled the new plugs and noticed them all very wet, so assume it's running too rich. Did a sync and checked timing, and set idle mixture. Still no change. Removed...
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    lying down fourstroke?

    Is there a way to lie down a 2000 merc 75 fourstroke for transport? (carb)
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    Omc 460?

    I'm trying to figure out a good starting point for a prop on my 28ft Bayliner. My concern isn't top end as much as I just want it to get on plane a little easier with a full load 6-8 passengers, 300 litres fuel, 100 gallons water. I'm thinking a 14.5 by 15 is a good starting point. motor is a...
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    winterizing?

    i'm trying to winterize a deck boat....i got the motor done. now i'm worried about the boat itself. it has a sink and toilet. how do i go about draining the water holding tank and getting the water out of the pump itself that supplies water to the tap on the sink? do i have to worry about the...
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    135 Opti?

    Does anyone know what would happen if you ran a 135 Opti without the exhaust extension in the mid section?...I got one that busted off and I don't want to pull the powerhead till the off season. Thanks
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    F115 No Start

    2000 115 4Stroke Yammy (fuel injected). will fire and idle fine when trimmed up but as soon as i trim it down into the water it dies and wont start till i trim it up again. it will idle when the water pickups are just barely in the water but any lower it quits. this is a new one for me. any...
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    Johnson/Suzuki 140 4ST

    A Johnson (Suzuki) it's basically a Suzuki. J140PL4ST is overheating. The top half of the cylinder head is getting well above 160 degrees while the bottom half is staying cool. Ive replaced the thermostat as well as impeller. Ive plugged the water pressure releif valve hole on the oil pan to see...
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    140 OverHeat?

    A J140PL4ST is overheating. The top half of the cylinder head is getting well above 160 degrees while the bottom half is staying cool. Ive replaced the thermostat as well as impeller. Ive plugged the water pressure releif valve hole on the oil pan to see see if the spring was week and not...
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    Help

    Can anyone help me? I'm working on a 140 4stroke Johnson with an over heat problem. I changed the thermostat and impeller. The top of the engine is getting hot while the bottom is staying cool. What could the problem be? I'm thinking I have to pull the power head to get the valve train off...
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    Temp? 140 4 Stroke

    Hi, I'm working on a 140 4Stroke Model J140PL4ST. It has an overheat problem...I checked the water pump it is good and changed the thermostat. i have a infrared temperature gun and noticed the bottom half of the cylinder head is running about 87 degrees at idle and the top half is about 150 at...
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    175 EFI Horn

    early 90's 175 Efi with a 150 ECM I'm getting a beep beep beep beep horn. three seconds after start up. I'm assuming it's an oil warning horn. checked the oil level sensor on engine tank it's ok checked the motion sensor on oil pump voltages all checked out checked to make sure oil was pumping...
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    115 Not Firing

    115 TLRV firing fine on 1 and 3. not firing on 2 and 4. spark is good on all four cylinders took carbs apart and cleaned them (not dirty) still did the same thing. found good used carbs put them on still the same thing. voltage outputs all passed pulled plugs on all the cylinders They were...
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    Sunk Opti?

    i drained the oil tanks, (remote and engine mounted) blew the water out of the cylinders, (starter still worked) blew the water out of the oil lines from the oil tank (crank pressure and feed line) I'm trying to get a hold o a DDT to prime the oil pump with fresh oil I drained the VST tank I...
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    smoking seadoo

    i'm working on a sea-doo...it's leaking oil into the hull (can't tell from where) and also burning lots of oil...lots of smoke. whats the problem. can you buy block off kits for these even though the rotax gear needs the oil bath? any thoughts would be great. thanks
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    pontoon repair?

    Hi I was just curious if anyone knows if it's possible to repair pontoons from pontoon boats? Taking dents out etc. And if so what is the best way of doing this? Any info would be great. Thanks
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    repairing pontoons?

    Hi I was just curious if anyone knows if it's possible to repair pontoons from pontoon boats? Taking dents out etc. And if so what is the best way of doing this? Any info would be great. Thanks
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    Slow Cranking?

    Hi, I have a mid 90's inline 4 115 Merc. It cranks really slow. I changed the starter and solenoid, as well as tried a brand new battery even though I load tested the last one and it checked out fine. With the key off I got twelve volts on the battery side of the solenoid. when i put the...
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