Please help 1994 25 hp 2 stroke runs out of gas at idle or high speed

fishon79

Cadet
Joined
May 15, 2012
Messages
13
I put clear line from sight bowl to intake on carb. bubbles come form carb end and hose empties if i pumpball it fills and runs. Ive got fuel water seperator the ball is upstream brand new sierra ball all new fuel line and tank with cap that is venting which way do i look fuel line back or look in carb?
 

aussieflash

Lieutenant Junior Grade
Joined
Feb 5, 2011
Messages
1,004
Re: Please help 1994 25 hp 2 stroke runs out of gas at idle or high speed

If runs only when pumping ball then its highly likely that your Fuel Pump needs rebuild/service.
 

fishon79

Cadet
Joined
May 15, 2012
Messages
13
Re: Please help 1994 25 hp 2 stroke runs out of gas at idle or high speed

it runs for 2 or 3 minutes then air appears at carb end of line if ipump ball which is soft it comes back I have rebuilt fuel pump and took to dealer which rebuilt it same thing have replaced needle valve, fuel pump diaphram 3 times I have new tank If i place tank end of fuel line in gas can will that be same as fuel tank Im questioning the tank or am I way off
 

fishon79

Cadet
Joined
May 15, 2012
Messages
13
Re: Please help 1994 25 hp 2 stroke runs out of gas at idle or high speed

forgot to say thanx for replying aussuie
 

aussieflash

Lieutenant Junior Grade
Joined
Feb 5, 2011
Messages
1,004
Re: Please help 1994 25 hp 2 stroke runs out of gas at idle or high speed

Could be- anti syphon valve(chuck it) - loose fuel lines,holes or cuts. -loose fuel pump fitting,anchor screws or worn oring or gasket.
 
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