[Shadetree1985]

I'm having the hardest time finding info anywhere online of what freakin weights and springs folks are putting in their 600's to wake em up. Been searching for days. Watched 4 million videos and read countless threads without any information. I know adam at airdam is putting together a kit of weights and springs for these but its $190. All I want to know is which weight and which spring. Contacted people on YouTube who have done the airdam kit but they have no idea of any weights or spring numbers. This thing winds up a ton before it moves and just feels spongy since day 1. I'm after that instant throttle response and bottom end grunt as kost trails I ride are tight and turny some some and some hills. Machine has 28's on it so that's another reason. HELP!!! NEED PART NUMBERS!!!

[NMKawierider]

What year CF600 is this? In any case you will want to reclock the secondary to C1 at least...maybe B2...and that costs nothing. With 28" tires, no matter what you do the 600 is going to feel that extra weight and aggressive trail riders almost never go over 27" even on the 1Ks because of the agility loss alone. If yours is one without a wet clutch (newer ones), then the spring in the primary can be changed to a lighter one for lower engagement as well as a set of flyweights or sliders with different gram weights depending on year and need. If you want to lower the engagement or stall, then either a lighter spring or heavier flyweights is needed. Remember though that a little goes a long ways. As for actual part numbers...sorry, after all you have watched and reviewed there should be something there. I can offer you this CVTech spring chart which has part numbers.



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And this re-clocking chart for the secondary:




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[Shadetree1985]

It's a 21 model. I kmownitnhas a trailbloc primary. Was hoping someone knows what size weights are in it and what spring is in it so I can order accordingly. Really just to save me some work on tearing it down twice to get numbers and weights then again to modify.

[M40b@live.com]

As a direct answer to your original question, I use a 1015 (200/900) spring with 14g weights and a secondary clocking of C2 with 27" tires. The end result is a Low-Gear WOT shift-out of 6800 RPM; a High Gear shift-out of 6400 RPM; and a 30 MPH cruise of 5200 RPM.
As to what you should use, the same as above, except clock the secondary to B3. If you'd prefer a lower cruising RPM (about 4700 RPM), but like the rest, Use a 1014 (209/600) spring, with 10g weights and clock the secondary at B2.
I would not use more than a 900n finish weight, nor below a 600n finish weight on a 600 that makes 40-41 HP and 32-36 FP of torque.
Tight trails, especially when rocky, generally eliminate higher stall speeds from consideration, so avoid the 1018 (300/600) and 1019 (300/900) springs. They're great for racing, mud and sand, but not so great in the rocks or when using your machine for towing or dragging of any kind!
As an aside, the chart that's floating around for secondary clocking is garbage! It is numerically impossible to achieve those values!
Each letter progression, B to A and A to C is +10 degrees; Each number progression is +30 degrees. So, going from B1 to A3, for example, adds 70 degrees of torsion.
This is because the cam lobes are set 120 degrees apart, each numbered hole is set at 90 degrees apart, the 3 lettered holes are set at A:0, B:230 and C:130 degrees.

[edk138]

For anyone wondering, stock clutch spring on the cforce 600 2021 is the 1013 (200/400) its marked gold yellow blue.

The weights are 10g and the weight holder is 10g on a food scale.

The secondary is clocked to B1.

[NMKawierider]

For anyone wondering, stock clutch spring on the cforce 600 2021 is the 1013 (200/400) its marked gold yellow blue.

The weights are 10g and the weight holder is 10g on a food scale.

The secondary is clocked to B1.

Thanks! That will help many people.

[Siberian]

What do you recommend for stock tires, stock 2020-2022 CFORCE 600 ?

Will the 1015 spring (200/900) with 14g weights be too much, I want quicker engagement in low end, its way to lazy at low throttle now and most of my riding is trail riding with tight turns, I want it to lay down the power with much less throttle than stock. Should we reclock the secondary or leave it for now.

I sent you an email brother, not sure if you're checking this forum with only 3 posts.  Does anyone know what the stock spring weight is, weights and secondary clocking?

As a side note- Will "ReClocking" lower general RPMs at 20-30 mph?  Will a sort of similar clocking also lower fuel consumption because of lower RPMs?

I have 21-600T and  will probably keep stock size tires.  I have not had it on mountain forest trails yet, but it won't be blasting around at high speeds.  However, just to confuse the "mix", the main job of my 600T is to do snow plowing.  While I "think" it would be nice to lower RPMs to get the bike moving, and run at lower RPMs, I have no idea as to a wise choice considering I don't want to upset Snow Plow duty.

I may get 26" tires in future, or at the very most, I'd go to 27"(a maybe-less-than-50% positive).  I have to wear out the tires the 600T came with before I replace them with anything else.  Throwing away good stock tires does't make sense to me or pocket-book if you get my drift. 

So whatever I decide to do about Reclock or not will be with me for a couple of years at least IMO.

Comments please???

YMMV 

[NMKawierider]

Well..let's talk about re-clocking first. The spring's preload..(and a little from compression) offer resistance, resistance to incoming forces from the primary through the belt. It also sets certain torque and load-related characteristics relating to the helix but that's a discussion for another day. The more preload you add to the spring, the more RPMs it will take to generate the centrifugal force it will take to overcome that spring setting. At B1, it's already set as low as it can be. Clocking won't change the engagement RPM, only the shiftout RPM range from start to full shift-out. If..you want the primary to generate overcoming forces at a lower RPM, including initial engagement, you have to either put heavier flyweights in and/or if you have a non-wet clutch machine, a spring with lower numbers. One must be vary careful not to go too far as the minimum RPM gain for starting off must not be less then 300, meaning if idle is 1400rpm, it must have to raise up to at least 1700 to engage. Any less and it may not disengage completely or consistently when stopping. The other thing is that it will also change shift-out and backshifting. It's all tune-able...with time, trial and error.

If it were mine and I had say..an idle if around 1400 but an engagement of 2200 or higher, I would set the clocking to C1, then go up 2grams each on the flyweights and leave the primary spring alone for now. If needed I would fine-tune by changing the primary spring to meet the needs of engagement and shiftout.

[NMKawierider]

The oneway bearing is in backwards or it's seized.. Clocking won't do what you are saying.

It's # 15 in this image:

[Lazydayz]

Did you remember to key way its #23 You don’t mention it

[Siberian]

Let someone else do dyno testing and giving results. Try going here>>

MSC Dyno HP/Torque Video: 

MAINSTREETCYCLE CLUTCH KIT TAGE 1: $149.99

   https://www.mainstreetcycle.com/shopping/item/309/msc-stage-1-clutch-kit

   MAINSTREETCYCLE CLUTCH KIT COMPLETE (HAS #1):$264.99
   Stage 2 spring needs to be set at B1 for Most everyone

No, I don't work for or affiliated with MSC, but they do put a lot of effort and $$$ making a CFM product better.  JMO.

YMMV

[George600t]

Hi,

Lots of very useful info in this post, but what I would love to find out is what spring and weights MSC guys use in their clutch kit. Does anyone know? Thx

[moto600]

Hi,

Lots of very useful info in this post, but what I would love to find out is what spring and weights MSC guys use in their clutch kit. Does anyone know? Thx

This is the post you're looking for.

https://cfmoto-forum.com/cforce-500-h-o/airdam-clutch-kits/msg41893/#msg41893

[Mr Mikey]

2020 cforce 600 T. I ordered a clutch kit from Airdam last year,  they asked what my main type of riding was which was trail riding,   i wanted to lower my starting rpm and cruising rpm. I received the kit and it did not perform to what my needs were,  i contacted airdam but no reply.  i ended up taking the kit out.  i contacted them again recently and actually got into an email conversation with them about how to make this kit work the way i need it but the emails stopped so once again i am without a clutch kit.
I have been in touch with main street cycle and they have been extremely helpful,  as soon as i have the bucks i will be ordering their clutch kit.

[derekmac]

I put 27" Mega Mayhem tires on my 2022 600T, reclocked the secondary to B2, and am trying to figure out what spring/weights I should get.  I do mostly trail riding, but most of our trails have mud, some of which can be pretty nasty.  I also don't really do any high speed riding. 

This is what I found for the spring and weights, but not quite sure if these would be the best for me:
CVTech Trailbloc Primary Weights 0901- 7103
CVTech Trailbloc Primary Spring 0951-1016