old fuel

[TowRoper]

ok todays duhhhhh question for me is..... will old fuel keep the engine from idling, it will run if you pump the linkage but if you stop it will die, guess what i realy need to know is, how to tell if the fuel is to far gone to use or if the carb needs rebuilt seeing it does run whith the old fuel
this is a AQ120B/270 1980
thanks for any replys in advance

 

[Don S]

Re: old fuel

Sure it could be the fuel.
More likely if you don't use up a tank a year, you may have a problem. With todays ethinol fuels, you coud have worse problems. The fuel CLEANS the tank, and lines, and moves all that nasty gunk to the carb and fuel pump, unless you have a proper fuel/water seperating fuel filter (10 micron) installed.
You wouldn't believe the number of outboard carbs on 4 strokes I have to rebuild each week. Even went to needing (and buying) and ultrasonic cleaner for those 4 stroke outboard carbs due to the small passages.
It's killer on all carbs without filters.

 

[180shabah]

Re: old fuel

ok todays duhhhhh question for me is..... will old fuel keep the engine from idling, it will run if you pump the linkage but if you stop it will die, guess what i realy need to know is, how to tell if the fuel is to far gone to use or if the carb needs rebuilt seeing it does run whith the old fuel
this is a AQ120B/270 1980
thanks for any replys in advance

Could be bad fuel, and/or carb, and/or plugs, and/or wires, and/or cap and rotor, and/or points, and/or.......

 

[TowRoper]

Re: old fuel

thank you for the replys, everything has been replaced other then the fuel filter and fuel sooooo looks like i have some fuel pumping to do and filter and carb cleaning and and and....... lol 2 days to the weekend hope im ready lol
thx again for the advice!
this bord has helped me more then anyplace in the vancouver/portland area glad i found iboats its a life saver!

 

[legoman67]

Re: old fuel

do you know what the tank is made of? ours is having issues becuase its a fibreglass tank and the fuel eats it, sending resin and chucks or glass up to the carbs. ran horrible, untill we hooked up a jerry can with fresh fuel.... Now we hae to figure out what to do perminantly.. LOL

 

[TowRoper]

Re: old fuel

the tank looks like a poly tank may just be plastic? it is a 1980 glasply if you know what they used, and the jery can is a good idea im going to try that in the am! that may cut down on the per weekend work load lol
good luck with yours!

 

[legoman67]

Re: old fuel

yeah, we use the type for small outboards and stuff with the primer bulb and all, just attach the hose to the end of your filter, and prime the bulb like you would on a kicker.. then go through normal starting procedure

 

[180shabah]

Re: old fuel

...looks like i have some fuel pumping to do and filter and carb cleaning and and and.....

Rebuild the carb, don't just spray it with some cleaner, it won't make a difference.

...ours is having issues becuase its a fibreglass tank and the fuel eats it....... Now we hae to figure out what to do perminantly...

Replace the tank before you start dumping gas into the bilge

the tank looks like a poly tank may just be plastic?....

Poly IS plastic

 

[TowRoper]

Re: old fuel

lol

 

[TowRoper]

Re: old fuel

forgot to reply the tank is alum