fisherman

[humble bumble]

I have a 2005 Weers Poonton 20ft. with a 50TLRD outboard I have a problem with the priming bub in the fuel line it keep loosing pressure. I have changed it a few times. could I put a low pressure fuel pump inline with it. I'am tired of it quiting own me Thanks for your help

 

[steveclv]

Re: fisherman

You have bigger problems and adding a fuel pump would just mask the problem.

Sounds like you have a leak between the carb and the fuel tank - split or perished hoses. Could be air going in and allowing fuel to run back to the tank or fuel coming out (would be quite obvious by the Exxon Valdez oil slick behind your boat)

It could also be a stuck needle valve inside one of the carbs or a faulty diaphragm on the engines fuel pump.

Outboards are not designed to have secondary, low pressure fuel pumps - they are designed to suck fuel from the tank themselves and so you need to find out why it isn't sucking fuel correctly.

 

[5150abf]

Re: fisherman

If you mean the bulb won't stay hard that would be normal, the fuel pump is on the motor so it sucks the fuel through the gas line so as soon as you pump it and start the engine the fuel pump takes that pressure away.

If it is losing prime then you have an air leak somehwere.

I have found them by pumping the bulb up and looking for where it is leaking, don't go too crazy, you don't want to hurt your pump.

If the engine runs normally after priming and you don't have a gas leak I woudl say everything is normal.

 

[tashasdaddy]

Re: fisherman

First, the fuel line primer bulb, only has one purpose.

pump fuel to fuel pump, before starting. once the motor turns over the fuel pump starts to draw fuel, THRU THE BULB, the bulb will automatically, be soft. as it has done it's job, and the fuel pump has taken over.

if the bulb is collapsing, then the vent is not clear on the fuel tank.

 

[humble bumble]

Re: fisherman

Thanks for all the response, I've had the carbs rebuild and was not looking foward to haveing it done again I will take the advice, their is on oil leak or fuel leak slick the engine looks clean with on leaks so I will look for a air lak and chance the line Once again tkink for keeping me from makeing a BIG mostske

 

[sweetmelissa]

Re: fisherman

I have a couple of problems and I'm looking for some help:

Problem #1:
At full throttle I start to lose power and I have to squeeze the primer bulb which is soft and it will pick right back up to normal speed running fine. It will stay hard for a little while and go soft again sometimes minutes later during the same test run. Any thoughts?

Problem #2:
I start the engine and within 3-5 minutes At low idle speed in nuetral and also when in gear at low speeds under 5 mph I will get an alarm that goes off ( 1 beep per sec. )This will continue until I rev the engine in nuetral or go faster than 10 mph in gear and then it stops. If I'm in gear going at a trolling speed and it sounds I can move the trottle and go faster and the beeps get faster ( 2-3 per second ) and then it stops beeping. The alarm has never sounded at speeds 10 mph or faster... Once the alarm goes sounds I can speed up and the beeps get quicker as I speed up. If I slow back down they get slower. But once I reach a certain speed around 9 - 12 mph they alarm stops..... I can run the engine at a slow a trolling speed and it will sound and then I can go fast and it will go off until I slow back down then within a few minutes of going slow again it will sound. Any thoughts?

Engine is a 1985 Johnson 90 hp.

Questions: What would make this alarm sound? Heat, Oil, water pump?

Here is the last work I had performed at the shop on June 24th, 2007:
1 - fuel filter 3/8" - $5.90
2 - KIT AY, F Pump&LMTR - $335
3 - KIT AY, Carb repair - $57.99 ( quanity 2 )
4 - Starter - $184
5 - Gasket V4 T-stat OM -
6 - Thomostat 130 Degr ( quanity 2 ) - $19.98
7 - Relief Valve Poppet - $2.19
8 - L77JC4 - Spark plug - $11.60 ( quanity 4 )
9 - Grommet OMC 321692 - $6.38 ( quanity 2 )

Mechanic Notes:
- Load tested battery it is O.K.
- Checked starter, it was drawing excessive amperage, replaced
- Checked fuel system, replaced several broken fuel clampsl
Test ran engine, excessive smoking due to several issues, replaced bad VRO pump, rebult carbs and repaired fuel leaks.
- Engine was running extremely cold, replaced thermostats.
- Engine runs much better now, shift and temp tested O.K.
- Engine is starting to have some internal wear.
Final Bill: $1297.57 ( ouch ) Engine ran great with no issues until August of 2009. I got 2 good summers and now I'm having the following issues mentioned above.

 

[Jacket4life]

Re: fisherman

If you will post this in the Johnson/Evinrude section, you'll probably get quicker results. I was just wandering and saw it. I'm a Mercury man, but the squeezing the bulb issue on a Merc would imply poor fuel pump.

Best of Luck...