Yamaha clutch weight?tuned sled

[rtx moose]

Can you use yamaha clutch weights for a TD max spool 16 stock.muffler flash? By adding weight of course!

 

[Motorhead]

Can you use yamaha clutch weights for a TD max spool 16 stock.muffler flash? By adding weight of course!

Let me start by saying that not all Sidewinders have the same tip rivet weight.
My 17 LTX-LE came stock with the heavy 4.3 or is it 4.4 gram weight in the tip. Drill it out and replace with new (same) while adding a1.5 gram washer during installation. I then drill out a bit of rivet if more revs are needed.

I ended up with total weight of 73.9 grams used with the 8jp and a 35/39 Dalton helix. I also run a 22T instead of 21T. Both stock springs are utilized.

Only diff from mine will be the clutch machining. Primary was cleaned up and secondary had .070 taken from coil pocket back in 2018! Wouldn’t think that would change it much.
If using xs825 belt, I go back to stock 35 helix for extra WOT revs if needed!

Should give you 2800 + - engagement
Low cruising rpm for trail mpg
WOT 8950-9050.

I do have BOV, and now 3 bar MS16 but this combo also worked on the 2 bar MS16 tune. Good luck!

 

[74Nitro]

Can you use yamaha clutch weights for a TD max spool 16 stock.muffler flash? By adding weight of course!

Yes, but not the best setup. Ok profile, but they have a flat portion in the curvature. Work better with the XS 825 belt to help bring revs down.
I ran mine until they started to wear out on the surface. All weights eventually wear out in these machines with enough miles.
I want to try the 8FA weights(RX-1) sometime, they have a nice curve, but only two rivet holes.

 

[number1kyster]

I run the 2 bar version of this tune with a BOV on my 2018. Yamaha Blu/Brn/Blu primary spring, stock weights, stock 35 helix, and stock secondary spring.

Mine runs 9,100rpm. It is easy on belts and easy on rollers.

 

[fourload]

I use the 17 stock weights as is with a 35/39 dalton helix ,TP orange sec spring and a 35/105 Yamaha spring with a xs825 belt. Runs about 8900-9000. Smooth trail manners with a 2800 engagement. I am on SMPowertrail which is a little less hp@250

 

[Motorhead]

I run the 2 bar version of this tune with a BOV on my 2018. Yamaha Blu/Brn/Blu primary spring, stock weights, stock 35 helix, and stock secondary spring.

Mine runs 9,100rpm. It is easy on belts and easy on rollers.

I’ve used that blu/Brn/blu with stock weights a couple of times. I found the engagement a bit to low for my liking. The sled creeps ahead sometimes when it should have stopped, if the idle takes a couple of seconds to come down to 1500.

 

[WinderFab]

What is the stock arm weight ?

 

[74Nitro]

What is the stock arm weight ?

8LR

 

[rtx moose]

so why does TD push the weights with there flashes, are they that much better than the yamaha ones?

 

[74Nitro]

so why does TD push the weights with there flashes, are they that much better than the yamaha ones?

Actually, there is a YouTube video with Ben stating that stock clutching is fine with ecotrail.
They only recommend Daltons at 250 plus

 

[number1kyster]

I’ve used that blu/Brn/blu with stock weights a couple of times. I found the engagement a bit to low for my liking. The sled creeps ahead sometimes when it should have stopped, if the idle takes a couple of seconds to come down to 1500.

I have never had that problem with mine.

 

[number1kyster]

so why does TD push the weights with there flashes, are they that much better than the yamaha ones?

Because the Dalton’s likely perform better.

I’m sure I’m leaving some performance on the table by using stock weights. I’d love to try a set of Dalton’s to see the difference.

The problem is, I’m cheap. And, right now I have good roller and belt life. I’m afraid I’ll give up roller life with an aftermarket weight.

 

[74Nitro]

Because the Dalton’s likely perform better.

I’m sure I’m leaving some performance on the table by using stock weights. I’d love to try a set of Dalton’s to see the difference.

The problem is, I’m cheap. And, right now I have good roller and belt life. I’m afraid I’ll give up roller life with an aftermarket weight.

I have found that the Daltons don't have quite as much longevity as Yamaha weights.
I have started using GForce, but haven't racked up enough miles on any of the sleds I've put them in yet.

 

[Stubbs]

If you do a lot of big mile cruising at constant speed/rpm all of the three holers are hard on weights, aftermarket’s in particular. One nice thing about the old four holer is it’s almost impossible to wear out primary clutch parts in one.

 

[74Nitro]

If you do a lot of big mile cruising at constant speed/rpm all of the three holers are hard on weights, aftermarket’s in particular. One nice thing about the old four holer is it’s almost impossible to wear out primary clutch parts in one.

Great point. The 'cruisers' wear out the weights quicker.