[Danni200505]

Today i removed the airbox on a my skidoo mxz 600 from 2003. And i discovered that the carbs are incredibly out of sync... like really bad.
(Video below)

So my two questions are,
1. How do i sync both slides so that they open roughly at the same time. I am most interested in knowing the mechanical side of things since i haven't worked on a flat slide carb before.

2. And my other question is that I'm going riding this weekend and i really don't have time to fix this before... so, do you think i can ride a coulpe days with the slides looking like this or should i stop riding until i get it synced properly?

 

[Mach189]

Easy peasy to do

 

[Mach189]

I would suggest fixing it because your sled will probably run better. The cylinders aren’t running equal right now so to speak.

 

[auto]

buy an inexpensive set of numbered drills. do the idle first, then stick something in the block to do off idle. Good Luck

 

[Nathan007]

Better do it first, you will have de definite improvement in throttle response and overall performance..

 

[Danni200505]

thank you for all the response! However when i tried adjusting the synchronization screw it seems like it does not have enough travel to adjust for all the differenese so to speak. What am i missing?

 

[stealth bomber]

I think you need to remove the tops off the carbs and have a look at the linkage for the slides. That seems way to out of whack to be fixed with the synchronization adjuster

 

[Danni200505]

all right! i will take a look.

 

[pma1123]

I'm not sure if the twin rack carbs are the same as triples, but on the triple carbs there is a cam-style adjuster under the 'tops' of the carbs that allows you to adjust the synch of the slides.
I mention this, because sometimes the fastener holding them backs off too, and creates a large imbalance in slide lift heights.

 

[Danni200505]

thanks for all the advice! today i syncronized the carbs and went for a ride. The sled was a lot more responsive after this fix, especially the bottom end. I have one more question though as i'm only getting about 8 MPG? anything i should look for that might be an issue?