It bothers me that the spider pockets seem to get so cut up. The shoes drag on the aluminum and gall embedding little flakes in the shoes. Then the clutch drags as it no longer slips like it should. The embedded pieces score the clutch like you took a scribe to it. Last season I took mine apart and polished the pockets:
The clutch dropped like butter after doing this, but in a matter of not too long it was back to score marks and dragging again so I sent it to Ulmer to disassemble and inspect and had him send it off to be coated:
I also had the shaft coated where the cover bushing rides:
Only time will tell how well it lasts, but this Ulmer vid is the end result:
The clutch dropped like butter after doing this, but in a matter of not too long it was back to score marks and dragging again so I sent it to Ulmer to disassemble and inspect and had him send it off to be coated:
I also had the shaft coated where the cover bushing rides:
Only time will tell how well it lasts, but this Ulmer vid is the end result:
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I should note that the coating used is a sacrificial coating a bit thicker than most moly dry film lubes. The issue with a std coating is that they require lubrication like oil or grease where this does not.
I also had the bushing of a new 24T upper chain sprocket coated as well. My plan is to run the gearing at 24/49 w/92 pin chain vs the factory 21/49 and see how that works
I also had the bushing of a new 24T upper chain sprocket coated as well. My plan is to run the gearing at 24/49 w/92 pin chain vs the factory 21/49 and see how that works
RTX
TY 4 Stroke God
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2006 apex rtx
Great post. And pics.
Love seeing people try new solutions.
I had actually thought about trying something similar to this with brownells teflon/molly oven cure gun finish
But got scared and never followed through with it.
Please keep us updated during the season with how this is working out/holding up.
Love seeing people try new solutions.
I had actually thought about trying something similar to this with brownells teflon/molly oven cure gun finish
But got scared and never followed through with it.
Please keep us updated during the season with how this is working out/holding up.
stingray719
TY 4 Stroke God
Makes me wonder about your clutch, I ran 8dn in my blue Viper from new and even dirty my sheave drops like in the vid.
From the very first time I disassembled and inspected my clutch would hang up. When cycled up and down it made a veet-veet sound as the spider shoes ran across the machining marks in the pockets. Once polished it dropped like the vid Sometimes I had to tap it to break loose from the parked position, but it was smooth. This did not last long though and when Allen got it he saw that it was dragging badly again.
When we are dealing with grams of weight every last bit of friction removed has to help with the precision of operation. This may turn out to be a total waste of time and money, but I just have to know...
When we are dealing with grams of weight every last bit of friction removed has to help with the precision of operation. This may turn out to be a total waste of time and money, but I just have to know...
I agree with stingray. Mine drops way faster than that video. Maybe will be better once broke in a bit. I like to use Car wax on the shafts and those pockets. Like you said though it doesn't last.
I'm sure that it will burnish in with some cycles under load. Night and day better than before where it had to be helped down.
stingray719
TY 4 Stroke God
Makes me wonder if that has been your clutch issue all along, as yours is MUCH tighter than either of mine.
Well in a few months we should know. On a positive note now I can wash it up put it in the trailer and take it to the storage garage for the season.
More discussion on this issue so I'll bump it back up. I have not had conditions to ride yet, but hoping soon...
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Ya I would love to know your top.speed with that gear combo! And the coating idea sounds like.a good idea, I've had mine.apart quite a few times now and I see what you mean
bleedyamaha
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Just curious if the Nytro primary is the same does the spider drop more freely than the Viper
stingray719
TY 4 Stroke God
My stock primary drops very easy, but it did not stock. All metal surfaces polished with steel wool including the main shaft
From what I gather only some drag as much as mine did. This coincides with what Studroes found with his Cat 7000 project. Low mph and sticking primary.
Hoping we get some snow soon so I can test. The one key variable is that I created though is the gearing change. I just could not wait until mid season.
Hoping we get some snow soon so I can test. The one key variable is that I created though is the gearing change. I just could not wait until mid season.
bleedyamaha
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Come to Iowa we got snow now the rain is finally switching to snow than in for a deep freeze everything is going to get rock hard
