5 replies to this topic

[jetskimechanic]

My question to any of you 1997 Challenger 1800 owners with the twin 800's, is when you turn your steering does your rpm's drop or gain???

I took a customers out yesterday to tune and full throttle turn into a turn and the rpm's of the right motor drops... Idle the motor and turn the steering and the throttle increases???

I will check it out tomorrow and think the cablr might be the issue but wanted to know if this is something they are suppose to do?????

[tiggerman]

Welcome, Robert!
The throttle increase at idle is supposed to occur as the steering reaches either the left or the right "stop". This is to assist steering at idle speeds.
My 720's change RPM during high speed turns as you describe, depending on which way I turn. The pump on the "inside" of the turn gets a better load than the "outside" pump, and the rpms drop a little. Is this what you saw?

[jetskimechanic]

Yes, After looking further into it I say the linkage up on the steering and that it did that and that it is also adjustable...

I have another question for you Challenger Owners??? Has anyone had this problem and what solved it if you did???

At full throttle the craft will surge from 5000 to 7000 and it jsut goes back and forth??? before I start digging into this motor just wondering if anyone had the same deal???

Please reply here and also robert@jetskimechanic.com

[tiggerman]

Possibly the plugs? I would make sure they are the NGK BR-whatever they are supposed to be..... Check the RAVES and fuel filters too.

[jetskimechanic]

Just to let you know it was the ECM and boy are they expensive...

[tiggerman]

Very expensive..... you gotta pay to play!!!!