I'm going to try to tune my quad to work with an Dyna fs I bought for it. I need to know some info on the carbs though. I have the 06 model and I think I read on here some place that there is now a plug or cover that needs to be drilled very carefully out on the pilot screws. Is this a project that can be done in frame or should I yank the carbs to do it. Also, what are and where are the shims I see people referring to on the needles. Are these shims on the Main jet, or piolt jets, or as the book says jet needle and needle jet????? that one lost me. Also, by turning the pilot screws in, is that making the mixture rich or lean? And finally, I thought I read something about a TSB on the jets. Any idea if that would include my 06. Its still in stock form as far as the air filter, exhaust and whatever jetting was put on it from the factory. Any info from you would be great.
Thanks

Linedog.

 

Linedog- The drilling is done in conjunction with the dynojet kit see here http://www.dynojet.com/pdf/Q217.pdf , you will need to pull the carbs off for this install. If not installing a DJ kit then you can washer out your main needle with 4mm washers, thus richening your low to midrange if needed. Turning your Air fuel screws in will lean it out and turning out will richen. The 06 Brute Force has the TSB for the front needle already taken care of. I am no expert but this is what I have learned trying to get rid of the mid range stumble with my dynatek, and hmf utility install. I finally have ripped the dynojet kit out and went back to stock needle and jets @158fr. 162rear 2.5 turns out on A/F screws and shimmed my needles with one washer each runs good @ 3550 ft. elevation. Gave my dynatek to buddy with p700 and am waiting on VDI. hope this helps

 

If you're trying to tune your quad to take out the miss of the dyna cdi then don't waste your time... i've wasted alot of time on it and i know it can't be done but if you want proof there was a guy on highlifter that took his to the dyno and still couldn't get it out.

 

Yup that would be me, I messed with it for a VERY long time with several dynoruns and dyno tuning and couldnt get it done. best of luck! I ended up selling my dyna for a hundred bucks and a moose module.

 

Well, I guess thats it then, I was really trying to make the thing work. I guess Dynatek just makes junk as far as the 750's are concerned. Too much time has passed since I received the dang thing so they probably wont take it back, (the customer is always SCREWED!.) Oh well. Guess I'll look into the Moose. Does it actually do anything or am I gonna end up in the same boat with the Dyna? All I was really looking for was a little more low end giddi-yup.
Idont think I'mm gonna shell the green they want for the VDI until I actually see one in action on the exact year and model as mine.

Thanks again.

 

oh yeah the moose does wonders for what it is. I'd used them in the past so thats why I went back to it. gives tons of bottom end grunt and according to the dyno it pulls all the way into the end of the midrange. not as much juice as the dyna but its definatly noticible.

 

Just get the Copperhead VDI and be done. I have the Dynojet kit installed and the Copperhead and there are absolutely no misses anywhere. The VDI is not cheap, but you get what you pay for. Their customer service is excellent and their product has performed flawless.