ADVrider

Go Back   ADVrider > Bikes > Thumpers
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 04-13-2009, 07:57 AM   #1
Nevadan OP
Not from Las Vegas
 
Joined: Aug 2008
Location: Nevada
Oddometer: 23
xr600r valve clearances

I recently got a 91 xr600r that needed a new rocker cover gasket. Saturday I replaced that but when I went to adjust the exhaust valve clearances the Haynes manual I have for it gave the clearances as 0.21mm(.005") now this does not mesh as .20mm is .008" and .005" is .13mm so my question is what is the correct clearance?

For the sake of being thorough what is the clearance for the Intake as well. The manual says 0.10mm(.004"), these two numbers mesh but are they correct?

Thanks
Nevadan is offline   Reply With Quote
Old 04-13-2009, 10:21 AM   #2
mcma111
Beastly Adventurer
 
mcma111's Avatar
 
Joined: Jul 2007
Location: San Francisco,Ca.
Oddometer: 11,001
Valve Adjustment Specs

Per the factory manual:

Intake = .004"

Exhaust = .005"

Now when you go to adjust the valves you need to rotate the engine counter-clock wise until you hear a loud CLICK. This will be the decompressor assembly on the cam disengaging. If you don't do this the engine will have a loud click at the right exhaust valve and when you go to recheck it it will be very loose.

So after the click find TDC through the window on the stator cover and adjust the valves.
__________________
Steve in SF

BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
mcma111 is online now   Reply With Quote
Old 04-13-2009, 10:37 AM   #3
Nevadan OP
Not from Las Vegas
 
Joined: Aug 2008
Location: Nevada
Oddometer: 23
How does the decompresion work off of the cam? I didn't look very hard at the cover when I had it off but I can't seem to picture it.

I had the decompresion cable disconnected when I adjusted the valves so that part was not engaged.
Nevadan is offline   Reply With Quote
Old 04-13-2009, 12:49 PM   #4
mcma111
Beastly Adventurer
 
mcma111's Avatar
 
Joined: Jul 2007
Location: San Francisco,Ca.
Oddometer: 11,001
Decompressor

The Honda decompressor assy. is on the cam, behind the cam drive gear. Self contained. The handle bar lever just push's open the right exhaust valve to let the engine get over TDC.
__________________
Steve in SF

BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
mcma111 is online now   Reply With Quote
Old 04-15-2009, 08:20 AM   #5
Nevadan OP
Not from Las Vegas
 
Joined: Aug 2008
Location: Nevada
Oddometer: 23
Thanks I will have to look at that first chance I get.
Nevadan is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 06:49 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014