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Old 03-05-2012, 04:17 PM   #3481
MortimerSickle
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Quote:
Originally Posted by rogervize View Post
...
I will also use a good paste on the splines and check the wear frequently..any suggestions on lubing the splines welcome...cheers
I have never lubed the spline on any bike. It won't do anything to prevent the battering damage being discussed here, and other than gathering dirt, I don't know what purpose it would serve. It might help to prevent rust, but I have never found that to be a problem- and I live in a wet climate.
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Old 03-05-2012, 04:26 PM   #3482
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Quote:
Originally Posted by rogervize View Post
...
The splines are quite visibly warn(I did need my glasses to see it) ..probably about half gone ..comparing with Steve's photo.
Sooo..thanks heaps for this great forum(and TT) which has renewed my interest in the bike.
...
I am not sure I am understanding this right, but it sounds like you are planning to buy this bike?

Are you getting a price that will allow you to replace the shaft? I would guess that any visible damage would mean the shaft is doomed to degrade to failure.
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Old 03-05-2012, 05:29 PM   #3483
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Originally Posted by rogervize View Post
That would be good ...watching you negotiate those tricky slopes made me think of the trials bike
Ha, OK...I'll put on my 70 tooth rear sproket.
Kinda kidding there. I mean the days of taking the Triumph into trials bike areas is a bit over. I still have 3 sets of wheels set up to interchange...
Just, it's a relic. And

I'd prefer to use a 600
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Old 03-06-2012, 12:02 AM   #3484
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Quote:
Originally Posted by MortimerSickle View Post
I am not sure I am understanding this right, but it sounds like you are planning to buy this bike?

Are you getting a price that will allow you to replace the shaft? I would guess that any visible damage would mean the shaft is doomed to degrade to failure.
No..it is my bike I have owned for 10yrs...bought it with 10,000Kms and since then its had a very easy life...except for using the wrong sprocket.
That's interesting...I have heard conflicting info on lubing the shaft...now I'm confused(more than normal)...but...maybe now I might read the manual...It 'sort of' makes sense that the sprocket is sacrificed in favor of the shaft..
I'm ordering a OEM sprocket(14T)...in the hope of extending the life of the shaft and gears.
Thanks
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Old 03-06-2012, 12:44 AM   #3485
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This wouldn't be an issue if Honda had only devised a better method of securing the countershaft sprockets. Even with a brand new sprocket, and a countershaft in perfect condition, it's a sloppy fit.
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Old 03-06-2012, 01:39 AM   #3486
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Countershaft Wear

Stay tuned...I will report back when I get the new sprocket (OEM 14T cost = AU$52)
I'll find out if the splines area is greater and whether the chain fits(since I am replacing a 15T cog)

Now..what can I buy with the money saved from an early rebuild?...a 5gal Clarke Tank is on order
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Old 03-06-2012, 09:35 AM   #3487
2manyrides
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Originally Posted by jesusgatos View Post
This wouldn't be an issue if Honda had only devised a better method of securing the countershaft sprockets. Even with a brand new sprocket, and a countershaft in perfect condition, it's a sloppy fit.
What's the matter with those people?
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Old 03-06-2012, 06:06 PM   #3488
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Originally Posted by duxrneet View Post
Get Moose Racing steel sprockets for XR650R. Not case hardened, so you don't destroy the countershaft so much. They're something like $40 on EBay. I bought a 15T and a 13T
http://cgi.ebay.com.au/ws/eBayISAPI....m=230747653265
http://cgi.ebay.com.au/ws/eBayISAPI....m=230747560915
Can someone tell me if these will fit a XR600R?...they are for a XR650R
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Old 03-06-2012, 06:17 PM   #3489
MortimerSickle
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Originally Posted by rogervize View Post
Can someone tell me if these will fit a XR600R?...they are for a XR650R
It might depend on the year, but they will not fit my '88.
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Old 03-06-2012, 06:44 PM   #3490
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My XR600R is '92 ...I also notice some of the Moose sprockets have weight reducing holes but these on Ebay do not.
I'm just checking these and may try them if they fit and if the spline area is the full 13mm and not the 9mm of the JT.
It's a combination of things cause the wear..one of which is chain tension and I think also lubrication of the splines with a good product will help...since this design seems like gear cogs rather than your normal spline.(just my theory so anyone correct me)
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Old 03-06-2012, 08:29 PM   #3491
MortimerSickle
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Quote:
Originally Posted by rogervize View Post
...
I think also lubrication of the splines with a good product will help...since this design seems like gear cogs rather than your normal spline.(just my theory so anyone correct me)
Just more teeth, same motion, or lack thereof.

If lube helps one, it will help the other the same.

I guess the important thing is that it probably won't hurt.
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Old 03-06-2012, 11:24 PM   #3492
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Camshaft identification

I've picked up a mystery camshaft from a neighbor with a box of xr600 parts, in hopes of using it in my engine with stock valves, springs and cheapo ebay rockers. By all appearances it looks new and unused, however since there is no documentation I'm at a loss as to what it is.

From what I can tell, It may be an original honda hrc unit, because of the NH4 engraved in the middle. Obviously it has the stock auto-decomp assembly, and the letters cast onto it read R3, A, Y. If any of you could help in identifying it, that would be much appreciated!




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Old 03-06-2012, 11:44 PM   #3493
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NH4 means you do have an HRC cam. They were cut on a stock cam blank, so they have a decompressor.

That, or someone engraved a stock cam with "NH4."
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Old 03-07-2012, 01:56 AM   #3494
rogervize
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Countershaft Wear on '92 XR600R


http://www.thumpertalk.com/topic/877488-xr650l-excessive-sprocketdriveshaft-wear-help/


For those following my CS wear prob I am cross posting to this thread on TT where others have the same issue
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Old 03-07-2012, 09:19 AM   #3495
elsalvadorklr
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Quote:
Originally Posted by rogervize View Post
I'm ordering a OEM sprocket(14T)...in the hope of extending the life of the shaft and gears.
Thanks
VERY SMART MOVE...

on my 88 the I bought the OEM 14t sprocket after installung a "new" cs shaft. six spline...

All I can say is youll be pleasantly surprised when you get it! I have a few pics on my old rebuild thread showing the difference in weight, thickness and material compared to the JT 14tooth on there before on my old slightly worn cs shaft.

so just like me youll be happy yo bought the OEM sprocket!

here is a hint...its lighter(its has holes on it to help clear mud and take weight off, but what made me so happy was it ws 3mm THICKER where it contacts the shaft....

thats enough to make you feel safe knowing you will not be stripping your shaft, that and oem sprockets are not hardened, but we all know that...


its worth the extra money for sure!

cheers
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