even before the throttle is all the way down. I won't gain any more speed and I'm only going about 6 mph. Before the problem I would go about 27 mph. I've replaced the coil packs, plugs and wires, powerhead gasket, rectifier, stator, water pump (was over heating, steam out of pee hole, runs cool now, bath water warm), adjust float on on one carb, and adjust the fuel mixture. Fuel pumps and filters look fine. Motor runs great, better than ever, starts awesome , idiles great, loss of power when taking off and wont go any faster. Anyone know what is causing this? I think it may be electrical and my shop book doesn't cover enough to be any help.
2006-06-25 07:16:13 · 8 answers · asked by raystang97 1 in Cars & Transportation ➔ Boats & Boating
It might possibly be your fuel hose where the pump up bulb is, they go bad and do what you are talking about !!!
2006-06-25 10:49:52 · answer #1 · answered by john l 5 · 0⤊ 0⤋
You've wasted a lot of money. It's a fuel delivery problem.
Here's the simplest and cheapest test.
Find a way to suspend a one gallon gas tank from a tree or put it on the roof of your house and run a host from it directly to the hose going into the carbs.
You're creating an "IV" for your boat like in the hospital. This will bypass the fuel tank, bulb, filter and fuel pump. If the motor runs well when hooked up to the "I V", then you can start by replacing the fuel line with a good one from a marine store and not from the Wal-Mart. If this doesn't work, replace all of the fuel lines and filters on the motor. If you still have problems replace the fuel pump. If this doesn't take care of it, replace the carbs, or have a good boat mechanic rebuild them for you.
Good luck!!
2006-06-30 05:02:15 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I would recommend pulling the plugs and determining if you are running rich or lean. You also need to make sure the carbs are synchronized together, if they are not you can start and idle fine but if they are not opening at the same time or if one is at full open and one is at half throttle position you wont be getting full power out of the motor. There should be on the side of the carbs a follower which rides on a set of throttle cams on those cams there should be a mark for full open position make sure the followers are lined up with the marks on all carbs.
2006-06-25 11:32:37 · answer #3 · answered by performance crazed 1 · 0⤊ 0⤋
It's most likely the ethanol fuel. If the fuel is new in your area you must start with a fresh tank of gas. the ethanol does not mix well with traditional gas from the past.
2006-06-26 13:43:05 · answer #4 · answered by mugabi 1 · 0⤊ 0⤋
Fuel or fuel tank? Fuel hose from tank? It might be cheaper to find anouther motor and figure that sometimes its just a lost cause.
2006-06-25 07:23:03 · answer #5 · answered by Edward F 4 · 0⤊ 0⤋
there could be somthing in the carb. or running lean on high rpm's check the needle and clean the carb and get a new fuel filter.
2006-06-25 07:45:21 · answer #6 · answered by Alex 1 · 0⤊ 0⤋
Don't assume the filter is good just because it looks fine. Make sure the fuel line is not kinked. Make sure the exhaust is not obstructed,
2006-06-26 01:27:47 · answer #7 · answered by Andrew N 1 · 0⤊ 0⤋
You're probably right, but you've got a marine store near you, have them take a look at it, they can check the coil etc for you and get you back in the water fast...
2006-06-25 07:20:27 · answer #8 · answered by gokart121 6 · 0⤊ 0⤋