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3x3 and jetting

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I have an 05 DRZ SM...got the dynojet sm specific kit and I'm jetting it as burnd said to the specs for stage two.....it never says anything about the pilot jet...am I missing something or do I need to change it?

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The FMF/DJ kit stage 2 instructions assume a standard pilot jet is used, so no need to change the PJ. It makes the mixture adjustment with the 3.5 turns on the fuel screw.

However, id you fit a bigger PJ, you can get away with less turns out on the fuel screw and so less chance of it shaking loose or dropping out.

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Hey guys! I did the Jet Kit mod way back in the day when Dyno Jet kit was for the S specific model. I am still under the idea i should be using a larger MJ than my 142.5 with a 3x3 hole and full yoshi system. Should i go up to a 147 - 150 MJ ?? It feels just a little light on top? :thumbsup:

Thanks a lot

Richie

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I've got a 155 main in my SM but I'm pretty sure that the SM kit needle is tapered way different from the S jet kit needle. I think you need both the needle and the bigger jet so it runs right through all the RPM's...not just the bottom or top.

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you need both the needle and the bigger jet

Right. I believe the bigger jet takes advantage of the different needle taper. It's a waste to step up to one without the other.

Man, reading this, I think I'll go try some fuel screw tweakage....

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So i guess i should swap out the old jet kit for the new or can I just buy the Needle and MJ? I have the 25PJ already installed. Is the SM kit better than the S? More power? :thumbsup: Thanks

Richie

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I was in the same boat as ucantstunt. I had the S jetkit in mine because thats all they had. I sold it to buy the sm jetkit and left the 25 pilot in and it runs a little better. Its just peace of mind.

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burned~ U mean the Same needle i have now or use the same needle off of the SM specific kit and bump my jet to 150?

Thanks

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I bought both kits. Bought the s kit first not knowing about the sm kit. The 'sm' needle is on the left and 's' needle is on the right:

needles.jpg

Notice the SM is fatter at the end, shorter, and the actual clip notches are lower. I found a marked improvement in the SM needle.

WGW

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burned~ U mean the Same needle i have now or use the same needle off of the SM specific kit and bump my jet to 150?

Thanks

you can use the S needle.do use the bigger main jet.

the SM needle is different for sure,but the S needle works ok.

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