Anti-siphon valve? - Maxum Boat Owners Club

Doc_Vegas · 05-25-2009, 05:55 PM

I was reading the owner's manual - trying to figure out why my engine is losing power. Could it be the anti-siphon valve? Anyone know where this is located? The manual is very vague. Is this a do-it-yourself replacement?

I really hope we can get on the water today!

Thanks

Stressleave · 05-26-2009, 09:39 PM

I always thought the anti-siphon valva was the 90 degree elbow coming out of the top of the fuel tank that the fuel line is connected to.
Looks simple enough to change.
I would try tightening the clamps on the fuel line just in case you are sucking any air.
Also check the fuel line for any cracks or pin holes, remember a suction line will not show a leak.
On another note you could have some water in your fuel.
Paul

Doc_Vegas · 06-02-2009, 07:32 PM

Thanks. It is in the hands of the marina now... I will post up the findings.

seapuppy · 06-02-2009, 08:14 PM

actually...could be the fuel vent...if that's clogged..then you will loose fuel pressure and pwr....check to make sure some wasp or mud dobber didn't try to build a nest in it..

SP

irate:

Big Daddy · 07-16-2009, 09:37 PM

Anti-siphon valve is typicall installed in the elbow on the top of the tank -- and the fuel hose is connected to the barb end of th AS valve.

Quote:

Originally Posted by Doc_Vegas

I was reading the owner's manual - trying to figure out why my engine is losing power. Could it be the anti-siphon valve? Anyone know where this is located? The manual is very vague. Is this a do-it-yourself replacement?

I really hope we can get on the water today!

Thanks

Doc_Vegas · 08-06-2009, 05:44 AM

Sorry I did not post up sooner. Turned out to be the cap and rotor, plugs also looked bad. I did not expect these as I paid big money for the shop to go through the motor before I took possession. Oh well, running fine now.