morrisond
Expert
I like the length of the warrior but want the mon0 rear end. Has anyone done the research to see if it's possible to make the new rear end 136". Has anyone talked with Hartman or MPI?
I'm on vacation in Portugal, can't get sleds off my mind, but don't want to waste a lot of time (and money ) on long distance phone calls.
I'm on vacation in Portugal, can't get sleds off my mind, but don't want to waste a lot of time (and money ) on long distance phone calls.
Boston RX1
TY 4 Stroke Master
If you can take a vacation in Portugal, I would not worry about the cost of a phone call or changing the sled. I hope you are having a great time. My vacation consists of going across the state for a few days.
My guess is that there are serious issues involved in stretching this suspension. Remember, it was rumored to be scheduled to go out with the 03 introduction. I would plan on a M10 or another time proven design
LazyBastard
TY 4 Stroke God
I wouldn't want to extend that suspension by simply going with rail extensions... you would really want longer (overall) rails, a longer shock body (or some kind of shock extension), and a longer control rod. I think it would work perfectly like that. For anyone interested in relocation, thats where it might start to get a little messy.
LB, i agree, but this is the kind of exersize were several iterations of the change could be needed to find the proper set up. If I were Yamaha, I would lay out an experiment using levels of skid frames, shocks, shock and control rod location, ect. It would be hit or miss in the average Joes garage.
It would be fun if you have the time and $$ to play with it. It would be easier to take the mountain setup and shorten it.
It would be fun if you have the time and $$ to play with it. It would be easier to take the mountain setup and shorten it.
morrisond
Expert
I want the mono-shock rear end though with the adjustable compression from the riders seat. I put about 1800km on a Warrior on a trip and when the trails were smooth I liked the compression full stiff, but when I got into the stutters I backed it off 5-6 clicks for a much more comfortable ride. I just don't want to stop and do it. I ride with REV's and it's hard to keep up with them in the bumps unless the compression is set softer.
As were only talking 7-8 inches of extension, a stiffer rear spring should suffice, shouldn't it?
I'll put longer rails on once there available(probably in '06 from Yamaha when the Warrior gets the new rear end) but I can't wait.
Has anyone had bad experiences with extensions? Is so what kit was it? Alternatively whose had no problems?
As were only talking 7-8 inches of extension, a stiffer rear spring should suffice, shouldn't it?
I'll put longer rails on once there available(probably in '06 from Yamaha when the Warrior gets the new rear end) but I can't wait.
Has anyone had bad experiences with extensions? Is so what kit was it? Alternatively whose had no problems?
LazyBastard
TY 4 Stroke God
morissond: There may be a problem with torsional pressure coming from beyond where the ends of the rails are "supposed to be".... In all liklihood, if you pressure it past the rear wheels, it may not compress, which could cause damage.
RedRX1: I'm talking about a simple stretch ala cut in half and weld back together. It wouldn't need any change to spring or dampening.
RedRX1: I'm talking about a simple stretch ala cut in half and weld back together. It wouldn't need any change to spring or dampening.
LazyBastard
TY 4 Stroke God
In the picture, the red is (obviously) the shock/spring, the blue is the control rod, and the purple are for the extensions.
Please make note that distance a, b, c (which are the critical measurements that control the behaviour of the suspension) are exactly the same in both. If the purple extensions are made with no pivots against the shock or control rod (part of the control rod would be replaced rather than stretched), then it should behave exactly the same.
Please make note that distance a, b, c (which are the critical measurements that control the behaviour of the suspension) are exactly the same in both. If the purple extensions are made with no pivots against the shock or control rod (part of the control rod would be replaced rather than stretched), then it should behave exactly the same.
Indy
TY 4 Stroke God
LB, I think Yamaha has an opening in the eng. dept. Can you speak Japanese?
LB, That would be a good starting point. I don't think the coupling link would be much of an issue as you should be able to scale that up in length, but the change in angle of the shock that has occured by the stretch could have a big impact on how force is distributed as the suspension travels. I would consider an adjustable mounting point for the shock on the front arm so that you could try to find the best location for ride and handling.
LazyBastard
TY 4 Stroke God
The change in the angle is barely more than negligible, it could be compensated for by increasing the preload and dampening by ~one click each. You have to keep in mind that there is no relay rod connecting the shock compression with the opposite side of the rear suspension pivot, so compression of the shock is more straight forward (direction).
I would *not* try going over 136" with this type of extension. That would make a 7.5" stretch.
I would *not* try going over 136" with this type of extension. That would make a 7.5" stretch.
LazyBastard
TY 4 Stroke God
vzoner said:
I *wish* I could speak Japanese.... Its the second most useful language.
