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  1. C

    Hard start

    You do not need a primer bulb. Fuel will not drain back into the fuel pump.
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    Bilge Pumps Not Working

    Yes, water will backflow thru a std bilge pump. Each pump should have a hose that runs either over the side, or to some other place, where water can safely go. You probably would get a good benefit from looking over that boat mechanically, electrically and any other way you can think of. I...
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    2005 115hp 4 stroke EFI - Flames coming out of Intake

    A four-cycle engine fires every other rotation. It sounds like you may have it firing 180* out. It may be as simply as checking/changing the camshaft position. Firing should only happen when valves are closed. I needed to replace the ign module on my MerCruiser. I needed to pull the...
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    Bilge Pumps Not Working

    Before you redesign the bilge pump system, you might find out how it is currently designed.
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    Diy Jump seats

    See what places like Overtons and West marine have. Boat builders do not always make their own furniture, so you may see something that will work. Taylor Made and Wise are also a large OEMs for seats and stuff.
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    Sharrow propellers

    A Sharrow prop in aluminum probably isn't feasible. The blades would need to be much thicker, which would likely distort the design efficiency. When they drop the price to <$1000, they should get some buyers.
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    Trailer tongue bracing? Help!

    Gee, pull the boat off the trailer and tie some ropes, steel, wood what have you, to hold it together until you get to the welder.
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    Should my vent plate ever be below my hull?

    Having the Anti ventilation plate that low will rob you of some speed and efficiency. However, some hulls, especially ones that are a deep vee at the stern rise up in the water as you go faster. These tend to ventilate in turns. The best you can do is to mount the motor as high as you can...
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    Hard start

    Push the throttle only button and pump it fully twice. Now pull throttle back to a position just above neutral, for a fast idle and crank it over. If that doesn't work well enough, remove the spark arrestor and look at the carb's choke plate. It should closed with a cold engine. There is an...
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    1986 90hp Mercury inline 6 won't start

    It makes sense to check the timing. Remove the prop and spark plugs 2-6. Put timing light on cylinder 1. Set throttle so the carbs are ready to open but still closed. Jumper starter solenoid to crank motor and observe timing. Timing should be 0-9*ATDC. Set throttle to max. Crank motor and...
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    1986 Mercury 90 hp 6 cylinder only running on #2, 4 and 6 cylinders

    The CDI electronics web site should have a troubleshooting guide for the ign system. Your motor will have twin switchboxes. Trace wires from under the flywheel to the switchboxes. They may be stacked. There is usually an ohm test for the stator windings.
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    how to remove water pump base 1978 1400 EZ Shift?

    The waterpump base is held in place by the oring and the friction of the studs.
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    how to remove water pump base 1978 1400 EZ Shift?

    You might give the gearcase a couple of PSI pressure to check for where it leaks. The driveshaft seal is an obvious candidate for leaking. The shift seal can also leak, as well as the propshaft seals, although the driveshaft leaked more often than the others on my IL6. Use two pry bars on the...
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    Stringer height

    You might repost in the engine section for your motor. Those guys are experts.
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    Cheap floor and foam replacement for weekend.

    Gee, I gave you some formulas to determine an estimate. I think those others quoted are too high, however, nothing beats your estimate.
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    1994 Johnson 150 HP

    The dry chemical in a fire extinguisher is real caustic. It corrodes everything it touches. Make sure you wash it off of everything. Maybe it fogged the optical sensor?
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    Bilge Pumps Not Working

    You bought a 35 year old boat. You will be replacing much more stuff that that. The only issue with repair of the bilge pumps is usually getting to them. Use some clip leads to provide battery power directly to them and see if they work. If not pull them out and get new ones. If they work...
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    looking for a place to install pole holders on my bow runner.

    You can install them on any railings you have. I screwed 10 pieces of PVC pipe on a piece of 5/4 and used copper pipe straps and wood screws to attach to the railing of my friends 30 foot cruiser. We removed them when not fishing. You can install them on the transom inside the boat or more...
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    Does Tohatsu make motors for Mercury or vice versa?

    A few years ago my neighbor replaced his twin 225HP Merc outboards with Tohatsu 225s. He indicated that he could not get new Mercs due to supply chain issues, but the Tohatsu's were the same as Mercury. true or not?
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    Water pump issues

    When you rebuild waterpump you need to replace impeller, wearplate and two gaskets, 1 on each side of wearplate, at a minimum. Make sure these gaskets match wearplate and waterpump base cutouts. If the pump cover stainless steel cup is scratched, replace that also. If the pump base is melted...
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