carburetor. Starts and idles but will not throttle up to speed

[Nitro56]

1996 Seadoo speedster 717 dual Mikuni carbs. Engine starts but will only throttle up a few hundred RPM'S at best. Carbs were taken off and cleaned but, still same issue. Throttle does operate in full range.

 

[4x4Nick]

Does it want to die when you throttle up or is it just refusing to rev?

 

[Nitro56]

Refuses to rev,

 

[rusty nail]

are you trying to throttle up in Neutral? There is a rev limiter in Neutral. It needs to be in forward to throttle up. If it is in forward, could have a bad neutral switch.

 

[Nitro56]

Tried in neutral and in gear

 

[POPPS]

Is it charging?

 

[Nitro56]

Yes

 

[rusty nail]

is the symptom in both motors or just one?

 

[Nitro56]

Actually, both. Just tried the other.

 

[rusty nail]

can you explain what the motors sound like when you try to throttle up? Are they struggling to run? or just stay idle?

 

[Nitro56]

They increase a few hundred RPM's and act like it's bogging. It's like being in a car and starting off in 4th gear instead of 1st.

 

[rusty nail]

I am still thinking neutral switch or the baffle fuel screen in the fuel tank is dirty. I do not know if you can bypass the neutral safety switch to test that. As far as the fuel screen, I would probably rig up a separate fuel source right to carb . That would let you know if it is fuel related. Maybe fuel selector switch as well

 

[Nitro56]

I'll give that a try