3 replies to this topic

[mmarler]

Hello folks, I have just purchased a 1996 Sea Doo Speedster and when I took it out for the first time I noticed that my RPM's do not match up (around 1000 less on left engine) with both of the throttle levers in sync. Does anyone know what could be causing this and how to fix it? At idle the left engine is also lower rpm around 300 or so. Thanks for any help.

[Robmoo]

Hello folks, I have just purchased a 1996 Sea Doo Speedster and when I took it out for the first time I noticed that my RPM's do not match up (around 1000 less on left engine) with both of the throttle levers in sync. Does anyone know what could be causing this and how to fix it? At idle the left engine is also lower rpm around 300 or so. Thanks for any help.

The engines at different rpm with the levers in the same position isn't uncommon. It is just a matter of how the throttle cables for each engine are adjusted most likely. Sounds like the idle adjustment on 1 engine is adjusted a bit different.

Doesn't sound like anything mjor. You can find the idle screw and adjust either engine so they match. My engines both idle at 1500rpm. You can also adjust the cables if the engine rpm thing is anoying.

[mmarler]

Hello folks, I have just purchased a 1996 Sea Doo Speedster and when I took it out for the first time I noticed that my RPM's do not match up (around 1000 less on left engine) with both of the throttle levers in sync.  Does anyone know what could be causing this and how to fix it?  At idle the left engine is also lower rpm around 300 or so.  Thanks for any help.

The engines at different rpm with the levers in the same position isn't uncommon. It is just a matter of how the throttle cables for each engine are adjusted most likely. Sounds like the idle adjustment on 1 engine is adjusted a bit different.

Doesn't sound like anything mjor. You can find the idle screw and adjust either engine so they match. My engines both idle at 1500rpm. You can also adjust the cables if the engine rpm thing is anoying.

OK thanks was thinking something must be wrong with the left engine. Thanks again for the help. Mike

[mtrhd101]

You can try and adjust the throttle cables and idle air adjusters.. I found the best setting for my idle air screws is 1 turn out from lightly seated then adjust idle stop to desired RPM.. Another thing I have noticed on the 96 speedster is that the tacometers are not always correct, you can listen to the engines at say 3000 rpm and tell if they are in sync.. I have been driving my boat and the tacometer readings vary from 1000 to 1500 rpms between engines without touching the throttle then they go back to an equal reading, just a glitch in the tacometers..