Did they use two different carbs on a 05' DS650X? I called HMF to get some jetting specks and they asked me what carb I have? Maybe all of you can get me dialed in?

05' DS650X
K&N air filter with outerwear
HMF slip on exhaust

Needle position?
Main jet size?
Pilot jet? Different? Same one?
Air fuel mixture setting?

Quad is all stock right now. Thanks for any input [img]i/expressions/face-icon-small-wink.gif[/img]

 

I ran a 172.5 main jet, needle in the 4th groove from the top, & 45 pilot jet. Mixture screw you have to warm up the DS and let it idle. Turn in the screw until it starts to stumble, then turn out the screw until it starts to stumble again and set it right in the middle. I am also at sea level.

 

My stock 03 is a Mikuni BSR42

 

Is it possible to use the stock pilot jet?
Thanks so far! [img]i/expressions/face-icon-small-wink.gif[/img]

 

You can use the stock pilot, you just need to open up the mixture screw a little more.

 

I never changed my pilot.In the summer i run a 160 main needle in the 3rd.
If i ran it in the winter i would go up to a 170,and try there.Im at about 900ft.

 

Are you using mikuni or dyna jet? The stock jet is a 165. A 160 mikuni would be a little lean at 900ft I would think.

 

Recomended by hpr.I still have color on the plug with a 160
I was running very rich at a mikuni 170. He actually said to go 150-155 in the summer.
These are mikuni jets not dj.