mjaremko
Suspended
I'm sure Yamaha doesnt want us to "Overly" tension the roller. The roller still moves fine with the O ring though.
Sure is nice to hear the engine idle w/out the rattle.
mj
Sure is nice to hear the engine idle w/out the rattle.
mj
if you look at old clutches, they used to have set screws on the pins like the primary weights do. I assume they decided to save a couple bucks by not drill & tapping. If you have ability to measure each location, you could grind / sand the pins to about 0.003 longer than the housing widths, then you should have no slop/noise. Could also take clutch apart and put in the set screws like the old one had LOL
canoehead
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I think it's to get more wear out of the roller bushing. If you recall the older 108c used to start cutting the pin because there was no lateral movement allowing the roller and pin to use more surface area. I guess the question is "how much is too much"?
mjaremko
Suspended
As long as the roller spins freely after your preferred update all will be fine.
mj
mj
**sj**
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the extra play is there and usually isnt an issue...'the reason the issue is there with the 3 cylinder is harmonics/torque which is fed from the crankshaft and is all but eliminated on the 4 cyl due to the reduction unit...
essentially those "pulses" are like little impact gun pulses and the softer material whether a o ring or washer or both absorbs the bolt hammering back and forth...
essentially those "pulses" are like little impact gun pulses and the softer material whether a o ring or washer or both absorbs the bolt hammering back and forth...
Anyone do this on an RS Vector?
nytroman20
Expert
I tried the o- ring on mine and it didn't change anything.
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nytroman20 said:
you need to install on both sides ....
nytroman20
Expert
I did put them on both sides and it still rattles... I'm wondering if maybe I put them too tight? And it just squished the o-ring
UP bushman
VIP Member
nytroman20 said:
You may have to replace the sliders on the spider. On my Phazer everything was in spec and I changed the sliders and it's quite again.
nytroman20
Expert
Well I'm noticing that my weights are loose and I think that's what is causing the rattle... Another thing I'm seeing is that when i grab the clutch and just nudge it back and forth that there is a play of maybe 1/16 or so.. Is this normal?
Nine2Nine
Expert
nytroman20 said:
Yes, Normal and I'm sure there is a post on here explaining this is the cause of the rattling. O-Rings and washers took the noise away with engine off only haha.
rough rider
Expert
clutch
Yes the clutch will move back and forth ,that is caused by the stub shaft where the clutch bolts onto, the stub shaft is splined and connects to the crankshaft and there is play in the splines causing the clutches to have movement, I did alot of research on this over the past couple years, i had a 08 vector with a huge amount of play in the splines and the clutch rattle was horrible, worse than other models, i took it to my yamaha dealer and had a service rep look at it, they told my dealer that my sled did have quite a bit of back and forth play, and that yamaha had switched vendors who made there cranks, and that some had looser tolerances than say a 2005 vector or rage, my buddies 05 and 07 were much quieter than my 08 My therory is that even though the 3 cylinder has some harmonic issues going on, i believe the noise is coming from the split crank design, Pull off your primary clutch and start engine and listen how great the engine sounds, thats how it should sound with the clutch on, until the crank becomes a 1 piece design we are stuck with the rattle, kind of embarrassing when u have alot of people nearby when sled is started
Yes the clutch will move back and forth ,that is caused by the stub shaft where the clutch bolts onto, the stub shaft is splined and connects to the crankshaft and there is play in the splines causing the clutches to have movement, I did alot of research on this over the past couple years, i had a 08 vector with a huge amount of play in the splines and the clutch rattle was horrible, worse than other models, i took it to my yamaha dealer and had a service rep look at it, they told my dealer that my sled did have quite a bit of back and forth play, and that yamaha had switched vendors who made there cranks, and that some had looser tolerances than say a 2005 vector or rage, my buddies 05 and 07 were much quieter than my 08 My therory is that even though the 3 cylinder has some harmonic issues going on, i believe the noise is coming from the split crank design, Pull off your primary clutch and start engine and listen how great the engine sounds, thats how it should sound with the clutch on, until the crank becomes a 1 piece design we are stuck with the rattle, kind of embarrassing when u have alot of people nearby when sled is started
nytroman20
Expert
I did start it once without the clutch on and it sounds pretty awesome.. No rattle! But I find it's only loud when the panel is off... With them my exhaust takes over! Thanks for the info guys!
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http://www.ty4stroke.com/viewtopic.php? ... highlight=
Haha,
I saw this post and laughed that it was exactly a year ago that I posted this and everyone I run into that owns a nytro has done it. It is the easiest and cheapest mod you will ever do. Look at the pictures on this post and it will be clear.
An adder to this post is that a nylon #8 washer is the best so far. I have been riding hard with mine installed last year and they have not moved.
No it's not as quiet as the apex but it is a 100% improvement.
Haha,
I saw this post and laughed that it was exactly a year ago that I posted this and everyone I run into that owns a nytro has done it. It is the easiest and cheapest mod you will ever do. Look at the pictures on this post and it will be clear.
An adder to this post is that a nylon #8 washer is the best so far. I have been riding hard with mine installed last year and they have not moved.
No it's not as quiet as the apex but it is a 100% improvement.
