Captain Jeff
Petty Officer 2nd Class
- Joined
- Jun 15, 2005
- Messages
- 159
1999 Johnson 115 OceanPro stalls in gear when you're giving it gas. It also stalls sometimes when it is just idling. It idles just under 1000 rpm. If you push in the key solenoid while accelerating it will run fine. Occasionally it will accelerate fine if you "gun" it from idle speed but will often start to accelerate and then stall. Finally you may get the boat to stay at say 1500-2000 rpm and be cruising along for a few minutes and it will then conk out due to lack of fuel.
I've come to the obvious conclusion this is a fuel starvation issue. I have spent a fair amount of time addressing this issue with basically no luck ahhhhhhh! Here is what I have done since the issue started last year:
-Rebuilt all 4 carbs (soaked, compressed air dried, Johnson kits)
-checked compression, all 4 cyls factory perfect
-replaced the fuel line from the tank to the engine and installed a new Johnson primer bulb and a water separating fuel filter.
-replaced the VRO unit (was mixing too much oil)
-de-carbonized
-new onboard fuel filter
-carbs are synchronized and timing is good
-new spark plugs
-new optical sensor
-new power pack
-new thermostats
-fresh gas
-plenty of fuel flow to engine and no air leaks, tank is vented
So what is wrong with my engine?!?!?!?! You must be a genious if you can figure it out. Thanks!
I've come to the obvious conclusion this is a fuel starvation issue. I have spent a fair amount of time addressing this issue with basically no luck ahhhhhhh! Here is what I have done since the issue started last year:
-Rebuilt all 4 carbs (soaked, compressed air dried, Johnson kits)
-checked compression, all 4 cyls factory perfect
-replaced the fuel line from the tank to the engine and installed a new Johnson primer bulb and a water separating fuel filter.
-replaced the VRO unit (was mixing too much oil)
-de-carbonized
-new onboard fuel filter
-carbs are synchronized and timing is good
-new spark plugs
-new optical sensor
-new power pack
-new thermostats
-fresh gas
-plenty of fuel flow to engine and no air leaks, tank is vented
So what is wrong with my engine?!?!?!?! You must be a genious if you can figure it out. Thanks!