Can-am ds 250 performance upgrades

I am trying to get a little helpful direction if I could please. I have a 2008 DS250 that is completely stock. I will be getting the FPP clutch kit and 14 tooth sprocket that will hopefully help this thing go uphill and quit feeling so much like an old 125 with 400 lbs on its back. It just doesn't rev real good or go that well. I am hoping that on top of the clutch kit and sprocket can yall tell me other parts that will help power and/or performance? I was looking at the FMF PC 4 slip on but I read somewhere on here that there is no noticeable gain from putting this on. Also as with all other quads sold the carb could probably use re-jetting, what kit works the best?

Some of my kids a quickly becoming disinterested with the DS250 over our TRX250EX because the EX will walk away from the DS and it feels like its got more power. I don't want to throw in the towel on the DS yet but it needs more. Thanks

Talk to the guys at Full Power Performance, Justin is a lot of help. They helped me on my sons 08 and it was a lot better. You are right, it does need some carb work, Justin can help you with that as well. Does the clutch kit come with the springs for the shoes and rollers too?

I can share some real world results from an ATV dirt drag race that we raced at a few weekends ago.
300 foot drag race starting on 60 feet of clay, in the Stock 0-350cc 4-stroke class my 14yr old daughter on our DS250 with an FPP clutch kit & 14 tooth sprocket (with 22" rear tires) beat a Honda 250EX.
She ran 8.18 seconds at 36.19 MPH with a 2.913 60 foot time, compared to the 250EX that ran 8.49 seconds at 36.13 MPH with a 3.176 60 foot time. Granted, rider / driver can influence alot with shifting, etc on the 250EX where we were more consistent with the CVT.
Our DS250 only got beat by a Yamaha 350 Raptor that ran 7.08 seconds at 42.27 MPH with a 2.443 60 foot time... but relatively speaking we were a little outpowered by that Raptor without running the bigger carb and exhaust, which we wouldn't have been able to run in the stock class anyhow.

I can share some real world results from an ATV dirt drag race that we raced at a few weekends ago.
300 foot drag race starting on 60 feet of clay, in the Stock 0-350cc 4-stroke class my 14yr old daughter on our DS250 with an FPP clutch kit & 14 tooth sprocket (with 22" rear tires) beat a Honda 250EX.
She ran 8.18 seconds at 36.19 MPH with a 2.913 60 foot time, compared to the 250EX that ran 8.49 seconds at 36.13 MPH with a 3.176 60 foot time. Granted, rider / driver can influence alot with shifting, etc on the 250EX where we were more consistent with the CVT.
Our DS250 only got beat by a Yamaha 350 Raptor that ran 7.08 seconds at 42.27 MPH with a 2.443 60 foot time... but relatively speaking we were a little outpowered by that Raptor without running the bigger carb and exhaust, which we wouldn't have been able to run in the stock class anyhow.

Congrats to your daughter for her performance. :clapsmilie:
I'm sold already on the clutch kit and sprocket being the first thing that needs done. It will be ordered first thing in the morning (gotta wait on my paycheck to hit tonight).

You said "without the bigger carb and exhaust", what mods are you hinting at here sir? Are you referring to re-jetting a carb or another carb entirely? What pieces will I need to re-jet the carb? Also on the exhaust note I think (and I could be mistaken after reading from so many different sources) it was you that stated that the FMF slip on showed no noticeable gains over the stock piece. Is there another that helps? I'm just trying to get all I can ordered to get this done all in one down time. Thanks for your help.

The only rejetting we did was a bigger slow jet for better throttle response, per the FPP recommendations in the back of the clutch kit instructions.
Unless you flow more air, bigger jets or needle won't gain anything for you.
We have a FPP prototype bigger carb, intake, and full exhaust (not for market yet) that we have been tinkering with but we can't run that combo in any stock classes since it's technically "an upgrade", and it can't hold a candle in the mod class (yet anyways).
The FMF slip on does nothing other then being lighter and a nice tone. Tell Tale sign is that the clutch runs the same RPM. If it made more power then it would overpower the clutch weight and result in higher shift RPMs.

Alrighty then, I'll get the clutch kit and sprocket then figure what jetting I need and go from there. Ours still has the 20" tires on it and it will untill they are worn out,spendin enough as it is. Speakin of tires, doesn't the 22" tires you run kinds negate putting on a 14 tooth front sprocket?

I put the clutch kit in first and it did make a difference but the biggest difference was when we added the 14 tooth sprocket. I think this brought out more of the real benefits of the clutch kit. I am a heavy guy and when I put the clutch kit in I thought something was screwed up because I needed full thottle to get it to move but the 14 tooth sprocket brought it down a little and gave it more bottom end. We were riding in a river bed and my daughter was smiling while doing a burn out and actually fishtailing. It never did that before. I might try rejetting also as long as it does not risk a lean condition.

I put the clutch kit in first and it did make a difference but the biggest difference was when we added the 14 tooth sprocket. I think this brought out more of the real benefits of the clutch kit. I am a heavy guy and when I put the clutch kit in I thought something was screwed up because I needed full thottle to get it to move but the 14 tooth sprocket brought it down a little and gave it more bottom end. We were riding in a river bed and my daughter was smiling while doing a burn out and actually fishtailing. It never did that before. I might try rejetting also as long as it does not risk a lean condition.

With 22" mud tires I can do a powerbrake smoke show on concrete with our DS250 with me weighing 185 lbs, and my two kids occasionally ride double on the trails with a combined weight over 240 lbs with no issue, so something sounds wrong if you needed full throttle to get it to move without the 14 tooth sprocket. If the engine was just revvign and not going anywhere, then almost sounds like you probably had either a mechanical binding, or you possibly didn't check or clean the the centrifugal clutch per the instructions, and it was slipping. If the shoes were too worn already, or you got oil / grease on the clutch during handling, then it was slipping under the additional torque and not grabbing the clutch bell sufficiently.
If the engine was straining or struggling, then simply your engine is low on power for some reason, dirty air filter, something... so the 14 tooth sprocket is just a compensation for a lower torque output.

Well I have tried callin a couple of times this morning with no reply so far. Replied back to an email I got last Sun also. Hopefully I can get in touch with them this time and get things ordered. Anyone know of a different way to get ahold of FPP for their clutch kit and sprocket?

Understand that their main business is snowmobile racing and this is plumb in the middle of grass drag season, they might not even be at the shop. The best way I have been able to get thru to them is leave a message with phone number and they will call you back when they get in and check the messages.

To answer your question about the 22" rear tires negating the 14 tooth sprocket, pretty much yes it is like having the 15 tooth still on it... but it still rips...

Dang it they called after I went out for some things and now the game of tag is on.

Finally got ahold of Justin at FPP. I left the room and the phone was ringin, he said they were getting everything together for racing this weekend. Parts should be here by Tues. Can't wait to get this little DS movin.

I cleaned everything good and the shoes looked fine. Maybe the belt just needed to work down into the pulleys. I weigh more than 240 so I think weight has a lot to do with it also but it is working good for her so if she is happy I am happy.

Hi, I know this thread is a few months old, but do you know if FPP ship overseas as I live in Australia and would really like to get hold of one of their clutch and sprocket kits.
The DS250 I just bought new is good but does seem under powered, especially in the dunes.
Any info would be much appreciated.

They do, indeed. All over the world.
I had been PM'ing with a few other members from both Australia and S. Africa who got them too.
Your best bet is to start with an email, as they are in the middle of their busy winter season with snowmobile racing...
That kit will work great in the dunes.
Cheers!

Well I finally got to ride the quad after putting the clutch kit in it and the 14 tooth sprocket and there definitely is a difference. Going uphill it doesn't bog down and make ya nervous that you won't make it. Now its just the fact that it is a 250 that limits it now. I still gotta re-jet the carb and I'm hopin that will help with the uphill power.

Anyone got a good source for jets for this carb?

Any luck finding a source for jets for this carb? Also looking to swap out the main and slow jets per fpp clutch kit instructions. Been searching online, but not having any luck. Found the #112 main at jetsrus.com, but they don't have any pilot jets listed. Going to make some calls locally to see what I can come up with.

Jetsrus has them all, listed under keihin "SLOW" jets. Dont have the number off the top of my head but could dig for it later. SKU's for the generic jets they offer were something like KR 28 mains and K26 slow seem to ring a bell, but match the pics up here for the part number...
http://jetsrus.com/FAQs/FAQ_identify_that_jet.htm

Thanks mbarryracing, you are correct with the numbers. I ended up emailing jetsrus over the weekend and Mike got back to me. The DS250 page did not list the slow jets so He said he was going to add them to the list to make them easier to find going forward. Although it was pretty easy to find once I took ours out and compared it on the main list of slow jets.
On another note, do you happen to know what the list price is for the carb/exhaust kit is for the DS250 from FPP? I know it's a busy time for those guys up there now and I haven't been able to get a hold of them to find out.

I think the carb/exhaust kit is going for around $1k, includes the intake manifold, pre-jetted carb, new throttle cable, air box plumbing, new K&N air filter, stainless header, and stainless muffler.