96 waveblaster 1 over reving

[Adem]

hi guys a have a 96 blaster 1 in excellent condition still had factory premix, I'm having a problem with over revving I hit the throttle 10% it's like it's hitting the rev limiter. I have attached a video hopefully I we can rectify the problem tia

 

[Adem]

 

[kennyfree]

Maybe be an air leak. Gasket on inlet side or cracked case.
Looking at your set up. Probably a Gasket.

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[Adem]

No sign of any leaks or cracks, I have quite a few skis and have never come across this before

 

[Mike W]

Has it been stored a long time without being ran? If so and you run regular fuel with ethanol than the carbs may need to be cleaned.

 

[Adem]

Has it been stored a long time without being ran? If so and you run regular fuel with ethanol than the carbs may need to be cleaned.

Great idea... I just think there is something more to it

 

[Mike W]

Great idea... I just think there is something more to it

Also, while you are in the carbs, check the small filter located on the fuel pump side. Wouldn't be a bad idea to check the fuel flow as well, It's possible the fuel selector can get an obstruction.

 

[Adem]

Also, while you are in the carbs, check the small filter located on the fuel pump side. Wouldn't be a bad idea to check the fuel flow as well, It's possible the fuel selector can get an obstruction.

All filters are new

 

[Vumad]

I felt like total idiot one time because I asked this very question and then jetmaniac asked me if I had checked my throttle cable in reply. The cable had cracked and changed the pull so it would rev up and stay there for a moment. No the sure if you have checked the cable but it's a super simple thing that is easily over looked. On a superjet it's hidden most places. Should be easy to check on a B1.

 

[Adem]

Maybe be an air leak. Gasket on inlet side or cracked case.
Looking at your set up. Probably a Gasket.

Sent from my SM-G930F using Tapatalk

A mechanic friend of mine said it might be a air leak, bad temp sensor or cdi

 

[///M5]

Spray brake cleaner around the intake/ crankcase under idle, and listen for an rpm increase. Spray in small amounts, and dont let it go in the intake.

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[billglass]

Sounds like limp mode to me. I've heard the overheating sensors can go out..

 

[Vumad]

I'm not sure I agree with the air leak theory. It's not running away. Contrary, it's not spooling up very high and it immediately drops back down to idle. I would think that would be more like an overheat sensor, bad CDI, MSD ignition with the rev limiter adjusted wrong, etc.

 

[Adem]

I have disconnected the temp sensor from the cdi and is still doing the same thing, next I will be changing out the cdi unit

 

[Adem]

Like I said, mine is doing the same exact thing, and I can rev mine.
My heat sensor is disconnected and Ive swapped out elec. boxes. So I know its not the CDI. Only thing i havent checked or swapped is the stator. Ive had air leaks before and this is not a air leak.
I think its the stator.
If you figure it out @Adem let me know and vice versa.

Will do mate really frustrating

 

[Adem]

I'm not sure I agree with the air leak theory. It's not running away. Contrary, it's not spooling up very high and it immediately drops back down to idle. I would think that would be more like an overheat sensor, bad CDI, MSD ignition with the rev limiter adjusted wrong, etc.

Everything is standard, sensor is now disconnected, no change, now I will swap cdi units

 

[Adem]

Thanks everybody for there help the problem was the cdi unit

 

[Adem]

 

[Adem]

Wow, thats cool you figured it out! I swapped to another electrical box I had laying around and still the same thing. Maybe I have 2 bad cdi's? Thanks Adem.

Get a known working cdi mate.... I guess I got lucky it could of been a couple different electrical problems ie stator etc