Hesitation

[stomper]

On my wifes 06 Attack (efi) there is a slight hesitation Right out of the hole while excelerating. It is also there if I am going slow and then hit the gas. It is good once I get going. It just boggs for a couple second right off the start then takes off. Just wondering if this would be a simple adjustment issue or something bigger.

 

[07apexcan]

Possible fuel richen needed though the cluster search co adjustment

 

[wileya]

Possible fuel richen needed though the cluster search co adjustment

X2

 

[marq]

The instructions for the CO Adjustment can be found on Ulmer Racing's website, under Instructions / Stealth Air Box

www.ulmerracing.com

 

[Capt.Storm]

EDIT below...double post.

 

[Capt.Storm]

Can also be bad doughnuts..mine was just starting to do that..then the back firing came.
I only found two sorta half pieces left.
And my pipes were wore through from the clamps..one slot on each set.

 

[Ak Yammy]

New belt cured mine.

 

[Super Sled]

Do you have any mods on the sled? Did the hesitation start with the addition of any new mods?

If not, another thought is bad gas.

 

[studboy99]

My 06 Apex GT was doing that and I cured it with a spark plug change.

~Jim

 

[stomper]

Donuts are good, sled stalls almost immedetly when I plug the exhaust. Could possibly be the belt. I just bought the sled last spring and this is the first year that I have drove it, so I don't know the last time it was changed. I tried my spare from my rx1 and it made no difference, but it it is just my spare and it is used also. So I will try the CO adjustment and see what happens. If that doesn;t work I will purchase a new belt, shold get one anyways.

Thanks

 

[stomper]

As for belts, is it best to stick with OEM yamaha brand belts.

 

[smoothride]

As for belts, is it best to stick with OEM yamaha brand belts.

yes.

 

[TBay Sledhead]

Change the fuel and plugs before adjusting the injection system.

 

[studboy99]

If you start and stop it a lot during the summer just to hear it run like i did then the plugs will foul. When my plugs fouled it would start and idle great but would backfire if i nailed it.