Pro 785 Wont accelerate first time out ??

[yeehaa]

Bought a 97 785 Pro over the winter & took it out for the first time this weekend. Supposed to be fresh rebuild by a 785 guru, exhaust pressure tested for leaks & everything looks good/tight on engine & pipes. The ski starts fine and runs slugishly up to about 25-30 at say 1/4 throttle & just bogs at anything over 1/4 throttle. Exhaust valves are not opening at all & tach does not work on MFD (CDI Bad ?). Tried making 1/2 turn adjustments on carbs but did not change anything. I plan on testing valve actuator box & CDI. I realize there are a lot of places to look for problems after searching this site, but thought someone might have had this same problem that can help.

Thanks, Ryan

[la90043]

sounds like fuel issues.........................

[rgard32]

exhaust valves wont open until at least 4k rpm..... does sound like fuel issues...or possibly compression...

might have to pull carbs and look at em...check internal filters..and check/change fuel lines etc..

i would also check compression

where are you from?

[la90043]

LA..........Los Angeles

exhaust valves wont open until at least 4k rpm..... does sound like fuel issues...or possibly compression...

might have to pull carbs and look at em...check internal filters..and check/change fuel lines etc..

i would also check compression

where are you from?

[Tony]

LA..........Los Angeles

Uh....I think he was asking Ryan.

[yeehaa]

I am in Springfield, MO / Table Rock Lake. I will check compression & fuel delivery. It has aftermarket carbs, I beleive red top 44's ? Has stock fuel filter. Any place i should be looking for filters on carbs?

Thanks.

[rgard32]

the filters on the carbs are inside the carbs..on the fuel pump side..(the side closest to the hull) there inside.... there very small..

[785 lugs]

check the fuel switch the like to plug up and cause problems

[yeehaa]

Thanks guys. By fuel switch I assume you mean the on/off switch & does the fuel pickup in the tank have any type of filter or sock that could clog?

Thanks, Ryan

[Feral]

Thanks guys. By fuel switch I assume you mean the on/off switch & does the fuel pickup in the tank have any type of filter or sock that could clog?

Thanks, Ryan

up the knob at teh side with the On/Main --- OFF --- Res thats the selector/on off valve

and from what I've seen no the Polaris line doesn't have any type of screen/sock on the sender unit