I have a 60hp merc. that starts and idles fine.It even gets up to speed fine,but then it falls on it's face.What's strange about it is ,i can bounce in the set and it clears up for a minute.It does good in rough water. Any ideas
Printable View
I have a 60hp merc. that starts and idles fine.It even gets up to speed fine,but then it falls on it's face.What's strange about it is ,i can bounce in the set and it clears up for a minute.It does good in rough water. Any ideas
Check the bulb. Is it holding prime? If there is a small hole or some other leak in it, that could cause what you are describing.
something in the tank stopping up the suck tube?
I had a similar problem, turned out that ethanol had eaten the inside of the bulb and tiny pieces of it had clogged the jets. You'll have to have the carbs cleaned and replace the fuel line including the bulb.
My Yamaha did the same thing. The ethanol had eatin the inner lining out of the fuel line and the bulb. The line was colapsing on mine. I put a new line from the tank to the motor and waalaa. She runs fine now.
What minner and Maj said and make sure that you replace with the new alcohol resistant fuel line
Same as above, change bulb and fuel line. If that doesn't fix problem it is the carbs.
Thanks everyone,i replaced all the fuel lines and bulb,but it's been a while.Also the problem is very consistant.I have not checked the suck tube ,tried to get it out but thought i was gonna break something.It's just weird that shaking the boat makes it clearup for a minute.
I had a similar problem, wound up being the fuel tank not vented.
Does sound fuel related, especially since the bouncing clears it for a bit.
Wannabe...
Probably a dumb question...Have you checked for water in the tank?
My friend had the same problem replaced the line and bulb and it runs fine. My question is, isn't Seafoam or Sta-bil supposed to correct the ethanol problem?:confused:
It helps with the moisture (water that alcohol absorbs).....and it stabilizes ( keeps fuel from going stale) but it does not remove the acohol and thats what deterorates the fuel lines. They now have fuel lines out that are alcohol resistant.
I have tried most of the things you all suggested.I actual replaced the fuel line with auto grade hose.I have had it in the shop twice,they say nothing wrong.But they dont run the boat in the lake.I'm gonna check the vent and suck tube,if i can get it out.Does anyone think it could be the choke?Thanks for the ideas.
Check for loose electrical connection especially around coils