Curtis, the numbers on the squirters are the sizes of the holes in thousands, get yourself a #61 to #80 pin drill set and take it with you to the lake, drill the holes out .002(no more) at a time until the stumble goes away. Stock carbs usually come with too small squirters to begin with. This is a common thing and very easy to fix!..
Another thing to check, make sure that the pump actuates as the throttle is opened, if it don't, you will have a stumble!...
[ June 17, 2003, 07:43 PM: Message edited by: GofastRacer ]
Gofast, I've got a whole asortment of HP accelerator pump nozzles for my other boat. I havent looked into the Demon yet, but I may try these if they fit. I know they are pretty big, I used them on my blower motor before I switched to injection.
What I recall about the carb was the squirt came later after the throttle was already partially opened.
Kurtis500:
What I recall about the carb was the squirt came later after the throttle was already partially opened. No, if the squirt came later you would have a gulp of air without fuel, that's where you would get a stumble, you have to give it fuel along with the air. If you want, e-mail me your number, I'll call ya!..
Yep. thats what I'm going to change first. I never looked into the problem at the lake and havent lifted a finger. I could have worked on it before i asked, but this helps narrow the search A LOT! First thing I am/was going to do is adjust the acelerator pump timing and nozzle size. This should solve it.. hopefullySince I didnt build this one myself I cant guage the proper carb for the motor. I never have liked doing things backwards, but after driving this thing for many miles already, I'm more than happy to get it fixed any way that is needed.
[ June 17, 2003, 08:24 PM: Message edited by: Kurtis500 ]
I am no expert, but were there new gas lines
installed? My boat did the same thing. Turned out
I had rubber grit in the bowls that got into
the check valve.
ItsaHobby
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