DooDoctor Racing


                                                      "DooDoctor's" Floating QRS           

The solution for the non removable or mis-aligned secondary clutch for the *XP Ski Doo snowmobile. 

(patent pending)

Improve performance and belt life. 

Easier access to Carburetion and time saving clutch adjustments.  

Our secondary clutch modification allows for quick removal in less than one minute leaving the shaft in the chain case. 

Call Brian (DooDoctor) today at 231-947-4599 to schedule shipping and modification times.  
Normal pricing is $499.00 plus shipping.  

Our shop has been the Ski Doo repair specialist in Northern Michigan for over 20 years. 


Pictures of Floating QRS 

Link to Video of Floating QRS:  


DooDoctor's  Floating QRS Kit!
Is there a difference?  (The Answer is Simple)
Our kit is designed with floating in mind, along with direct fit!
Our shaft is considerably stronger with .090 larger O.D. along with stronger shaft material for longevity.
Wide heavier duty bearing for stability. 
The carrier on the end of the shaft reduces wear and supports the outer end of the clutch.  This stops shaft chopping and holds alignment. 
Stainless Steel Seal Race.






Comes with everything you see here and is direct fit in all
 2 strokes 2008-2015 XP, XS and XM!

09-15 XR 1200 4 stroke is $499.00.


You will reuse your Helix, spring, inner clutch half and adjuster 

You will need to pull the bearing off your shaft to remove the inner clutch half.

( if you have an 08' or 09' ) 
You will need to update to the 2010 and newer adjuster kit for $29.00

 *We now offer the most competitive prices on Snowmobile Tracks!*

***Also See Our 900 Ace Hot Rod Kit below***

We also have for sale 
(patent pending)

Converson kit  for '08 and '09 sleds

to the  '10s and '11s style Secondary belt adjustment.


No more messing with little allen screws

Bushings for the Helix and Secondary Floating Sheave for the Floating QRS


Ski Doo QRS Secondary Roller
B&B Monster Tuffs
The Last Roller you will ever buy!!!  The "Tuff"est Roller on the Market!  Lifetime Warranty.

We have PB80's in Stock.
4 Stroke, 2 Stroke, Standard and Overdrive

Standard PB80  $495.00
Overdrive PB80  $585.00
PB80 Holder  $25.00

900 Ace Hot Rod Kit
Better Acceleration: More Top End
Better Throttle Response

*We now offer the most competitive prices on Snowmobile Tracks* 









We have a machine shop* 
to resurface and put factory Ski Doo angles back on clutch halves - 
$115.00 per Clutch (facing both halves) or $230.00 Per set (primary and secondary)
Please drop off or send your clutch halves to
Clarke's Service
8320 E. Bingham Road 
Traverse City, Mi. 49684 
 phone 231-947-4599 
DooDoctor Racing
Operating under Clarke's Complete Service, LLC

We also offer repair for the moving primary sheave



Before your chain case cracks, 
call and order your  

Chain Case Saver" (patent pending)


We now offer a "Race Plug and Go"
(patent pending)

It simply tells the computer that the sled is running at 110 degree's. No more having to let your sled cool down before another pass!  It is a big pain to get the temperature sender out so we made it easy to install, just unplug the temp sensor from the harness, plug in the "Race Plug and Go" and your ready to race!!  We recommend that you install a aftermarket gauge so you can see what the true temp of the engine is...



"Plug and GO" Temperature Resistor (patent pending)

The "Plug and Go" just tells the computer that it is running 20 degrees cooler. The sleds that have the bar gauges run most of the time here on the flat lands at 135 degrees (4 bars). 104 degrees is 3 bars, 140 degrees is 5 bars. So you can see there are 31 degrees between 3 bars and 5 bars, with running temps at 135 degrees. It only leaves you with 4 degrees before timing retard. The "Plug and Go" is just to prolong the pain of the dreaded timing retard.

It is hands down the edge over the sled without it!!! Lake racing, trail riding, extra 2000 feet wide open, or an extra 1 or 2 passes.

This is nothing new at all, many race shops use them. It is just a big pain to get the temp sender out so we made it simple to install. We ran these on many sleds before we were ASKED! to start selling them. We find that they are nice to use with a gauge so you can see what the true temp is... remembering that you are 1 bar warmer. And those who do not have gauges the light will come on with enough safety to warn you before engine damage occurs.

*Machine Shop we trust for all of our machining - 
these guys know their Calipers and CNC's
WestSide Tool, LLC
please call them @231-313-7899
 with any  custom details or any machining needs you might have

More Pictures under the "Pictures" Tab
* Ski Doo is a registered trademark and used here for informational purposes. Floating QRS is not affiliated with BRP industries. We love Ski Doo and believe there is no other worthy of our time and money.
Clarke's Service (DooDoctor Racing)
Operating under Clarke's Complete Service, LLC
 is open  9 am to 6 pm Monday-Friday,  EST
8320 E. Bingham Road 
Traverse City, Mi. 49684 
 phone 231-947-4599     

We accept Visa/MC Discover and Paypal. 

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