Rough tuning...Am I getting anywhere

[JimTMich]

Could I be detonating or pre-igniting?
My TL timing curve is flat at 18 degrees, so I have a lot of timing up high where I shouldn't.

I detonated a piston to death 2 summers ago with this ignintion and this pipe and it is behaving the exact same way......

I will lower the compression, if that helps, then I will retard the timing, raise the compression and start the jetting all over again. Lets hear it for race gas and patinets.

 

[douglee25]

18 degrees advance on the upper end? That sounds way too high.

Doug

 

[Scorn800]

I think something is up with your ignition. Try swaping it out and see how the boat runs.

 

[JimTMich]

Finally got it!:veryhappy:

After thinking it might be my timing/compression I found that the SXR with advance plate is 18 degrees at 7000, so I wasn't too concerned about my timing if FPP runs a dry pipe and advance plate on 18 degrees.

So I finally dropped to a 100 HS jets and Bingo, No more stuttering!:Banane36:

Now I'm flatwater freestyling kawi style.:woot:

Thanks guys!

 

[Watcon]

Tuning tips

I have some tuning info that might help... E-mail me with a request at wcc@watcon.com, and I send them directly to you.. Always tune with a tachometer for best results, and don't trust the "peak" reading if it has a memory function. Alway watch the tach for best results.

Randy at Watcon

 

[JimTMich]

It was loading up a little when setting up for tricks so I changed from 115 ls jets to 112.5. Very clean now! This thing is amazing!:Banane01: