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126 MPH DM


I use to run a speed ring on my 2 strokes, it was .250 inches thick and it went under the helix, thus same thing as putting washers under it except for the speed ring also had a small groove on the top of it locking the helix in it !!

If you mark the helix before and after you shall note that with the washers or speed ring you are using a bit of helix prior to shifting, so in theory your hole shots may be affected with good traction conditions and with a multiple angle helix etc.etc., and yes you may gain top end if you are using all of your clutch and gearing prior to install.

With that set up I did not get great mileage out of my belts. It may have been a problem with my secondary spring pressure ???
;)!
 
washers

does not effect the hole shot what so ever. for the .25 cents that this cost to try why even waist the time and enrgy talking about it just try it if it works for you fine if not well nothing ventered nothing gained
 
NEED SNOW said:
YES...Thats where I put them...
are you running a stock helix or a aftermarket? do you know if this will work for an aftermarket helix or are theey machined for full shift out? it was my impression they were machined for full shift out when you went aftermarket
 
700SCOTT said:
NEED SNOW said:
YES...Thats where I put them...
are you running a stock helix or a aftermarket? do you know if this will work for an aftermarket helix? it was my impression they were machined for full shift out when you went aftermarket
 
jminor1 said:
This is probably a really obvious question but sorry. When you talk about wiggling the secondary to get the washers on you just mean you're putting the washers under the 12mm nuts on top of the helix right? Also, Bob Miller you are running a silver spring, what have you changed in the primary? I wonder if you will have to change the wrap a bit to get the revs, if you could post results that would be great!

This year in the primary I'm using 14.5mm rollers, OSO spring.
Silver spring in secondary 70 degree twist, with shims, SLP anti-wear pads.
4 TPI valves with 160 main jets! I'm going to Quebec Jan 10-15. When I come back I'll give a full report! I'll be riding with 3 Doo's, including an 06 Mach Z!
Kudos to blackjohn, Otis and others for their help! LaLaLa
 
Most aftermarket helixs have a deeper cut at the bottom of the ramp for further shiftout than a stock one.Hold two together and you will see that most aftermarket ones are longer from top of ramp to bottom.The CPR kit helix I had was as well as the Bender and Maxx perf ones I have.
 
how thick are these washer

i was wondering how thick the washers are IE (2mm) and are they lock washers or flat washer
thanks i would like to try it
:rocks:
 
119 on the dreammeter is the hightest ive ever seen on my ECP/HH equiped warrior last year...

Still fast enought to beat everyone i raced
 
700SCOTT,,, I dont care if it's a stock helix or not. As soon as I get a new YAMAHA home I put on the lock washers. As I said, I get great hole shots. I have a CPR clutch kit. Jeff at CPR said it was o.k. to leave them in. But I got the [impression] he didn't think it did much. It could be it dont, but it looks like it would...
 
Re: how thick are these washer

bigdave said:
i was wondering how thick the washers are IE (2mm) and are they lock washers or flat washer
thanks i would like to try it
:rocks:

I use 5/16 lock washers :D
 
This works on some sleds, not on others.

My 05 Mono skid had so much drag, I could never get it to shift all the way out. The 05s will not run the MPH that the ProActioon sleds do

I have seen 124 on my speedo with a 1.375x136 Paddle track using Dalton DPYR weights.

On my sled, the stock secondary spring would bottom out before the helix would bottom out.
 
Bob Miller , When you try your sled for topend put a set of windage plates on the secondary. Seems to make a difference on the vectors. I went from 111mph to 122 on the speedo with this change and the addition of a straight shockwave adjustable helix.
 
RX-Dave said:
This works on some sleds, not on others.

My 05 Mono skid had so much drag, I could never get it to shift all the way out. The 05s will not run the MPH that the ProActioon sleds do

I have seen 124 on my speedo with a 1.375x136 Paddle track using Dalton DPYR weights.

On my sled, the stock secondary spring would bottom out before the helix would bottom out.

I have heard the complete opposite about the mono, anyone else?
 


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