SV650.org - SV650 & Gladius 650 Forum



SV Talk, Tuning & Tweaking Discussion and chat on all topics and technical stuff related to the SV650 and SV1000
Need Help: Try Searching before posting

Reply
 
Thread Tools
Old 18-05-09, 11:03 AM   #1
Grinch
Guest
 
Posts: n/a
Default Valve clearances. sv650s 99

Over the weekend I did a few things on my bike, replaced the dodgy Reg/Rec that when I put my lights on drained the battery. Swapped the rear tyre as you could see the pattern of the wire in the rubber, and even wiped all the oil off the rim.
Also I took the opportunity to check the valve clearances. Some from what I know should have been done about 40,000 mile ago as checking them at 69700 miles is so I'm informed a bit late.
After downloading the manual off the internet as I couldn't find my own, I set about working on the bike. Took all the bits and things like the tank off so I could get to rear head easy. Took off the head and realise the photos I had was terrible and gave Jambo a call to confirm a few things, cheers dude.
The results are.

Rear head Exhaust clearance - 0.15mm (should be 0.20-0.30mm)
Rear head Inlet clearance - 0.14mm (should be 0.10-0.20mm)

Next weekend I plan to look at the front clearances as I ran out of time, and the front is much more of a challenge to get to.

Now I had planned to get a mate of mine to do this work, but I spose I could have a go. So any tips... I know I need to get a micrometer to measure the shims. And that I need to ensure I only turn the engine anti-clockwise. But is the anything else that might put me off?

I have photos if anyone else wants to know how to do it, and unlike the manual the are in focus and in colour.

Last edited by Grinch; 18-05-09 at 11:07 AM.
  Reply With Quote
Old 18-05-09, 11:12 AM   #2
jambo
Member
Mega Poster
 
jambo's Avatar
 
Join Date: Aug 2003
Location: Croydonia
Posts: 5,376
Default Re: Valve clearances.

Grinch,
Were both the inlet, and both the exhaust clearances the same? It's not impossible, but it's quite common to get different readings from each.

Altering the clearances is something best read through from a manual and then discussed, What you'll get here is lots of useful tips without making sure you've got all the essentials covered.

For what it's worth, work on one head at a time, measure everything twice if in any doubt what so ever. And be certain that you know how to get everything lined up properly before you take it apart.

Also: Don't step on the tray full of shims and buckets before you've measured them meaning you have to guess what went where, and don't drop anything down into the engine.

Jambo
__________________
Modern motorcycles are bloody brilliant, enjoy it while we can
jambo is offline   Reply With Quote
Old 18-05-09, 11:20 AM   #3
rictus01
Member
Mega Poster
 
rictus01's Avatar
 
Join Date: Jul 2003
Location: South London
Posts: 9,799
Default Re: Valve clearances.

http://forums.sv650.org/showthread.php?t=128141

that'll give you some idea what's under there.

Cheers Mark.
__________________
Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming, 'Wow! What a Ride!
rictus01 is offline   Reply With Quote
Old 18-05-09, 11:29 AM   #4
Alpinestarhero
Guest
 
Posts: n/a
Default Re: Valve clearances.

A quick enquiry, how did your cam-followers (bucket type things) look? Any wear?
  Reply With Quote
Old 18-05-09, 11:31 AM   #5
Grinch
Guest
 
Posts: n/a
Default Re: Valve clearances.

Quote:
Originally Posted by jambo View Post
Were both the inlet, and both the exhaust clearances the same? It's not impossible, but it's quite common to get different readings from each.
Yep I double checked them both and I got the same values, did think one was 0.01 different but further checks showed I was wrong. As you said on the phone, double check everything.

Need to buy some more tools to do the rest.
  Reply With Quote
Old 18-05-09, 11:37 AM   #6
Grinch
Guest
 
Posts: n/a
Default Re: Valve clearances.

Quote:
Originally Posted by rictus01 View Post
http://forums.sv650.org/showthread.php?t=128141

that'll give you some idea what's under there.

Cheers Mark.
Cheers, having a look at it now.

Quote:
Originally Posted by AlpineCarStereo View Post
A quick enquiry, how did your cam-followers (bucket type things) look? Any wear?
Nope, no wear that I could see, though I have yet to check the fronts. So far it just looks like its only the rear exhaust shims that needs replacing.
  Reply With Quote
Old 18-05-09, 11:39 AM   #7
Alpinestarhero
Guest
 
Posts: n/a
Default Re: Valve clearances.

Ok, just wondering - I had to have one cam follower replaced at 30,000 miles (front) and another one will need replacing at 45,000 miles (rear, involves removing the shock according to my dad). 1999 SV's apparently had a bad batch of this part....as did TL's.
  Reply With Quote
Old 18-05-09, 12:06 PM   #8
Grinch
Guest
 
Posts: n/a
Default Re: Valve clearances.

Well I haven't checked the front yet, its next weekends job. But so far its not back considering the mileage and abuse that bike has had off me.
  Reply With Quote
Old 18-05-09, 12:32 PM   #9
yorkie_chris
Noisy Git
Mega Poster
 
yorkie_chris's Avatar
 
Join Date: Apr 2007
Location: Halifax/Leeds
Posts: 26,645
Default Re: Valve clearances.

Quote:
Originally Posted by AlpineCarStereo View Post
(rear, involves removing the shock according to my dad).
It does not
__________________
Currently Ex Biker
Now rebuilding a 63' fishing trawler as a dive boat
yorkie_chris is offline   Reply With Quote
Old 18-05-09, 01:11 PM   #10
flymo
Member
Mega Poster
 
flymo's Avatar
 
Join Date: Jan 2008
Location: North West
Posts: 3,124
Default Re: Valve clearances. sv650s 99

Quote:
Originally Posted by Grinch View Post
Next weekend I plan to look at the front clearances as I ran out of time, and the front is much more of a challenge to get to.
Do you really mean the front? I found the rear was more fiddly personally, with the rad loosened and pulled forwards the front was pretty easy on mine.
flymo is offline   Reply With Quote
Reply


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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Valve clearances - how do you know? SUPERSTARDJ01 Bikes - Talk & Issues 19 09-05-09 05:16 PM
Valve clearances - K3 Lozzo SV Talk, Tuning & Tweaking 1 24-07-08 09:24 AM
Valve Clearances DanAbnormal Bikes - Talk & Issues 31 07-02-08 06:22 PM
Doing the valve clearances... instigator SV Talk, Tuning & Tweaking 7 16-10-06 10:08 PM
Valve Clearances HELP TSM SV Talk, Tuning & Tweaking 25 05-04-06 09:58 AM


All times are GMT. The time now is 11:01 AM.


Powered by vBulletin® - Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.