HOW TO: Valve Adjustment (OH.MY.GOD.SO.MANY.PICTURES)
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Senior Member
Joined: Mar 2006
Posts: 902
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From: Cape Cod, MA
RE: HOW TO: Valve Adjustment (OH.MY.GOD.SO.MANY.PICTURES)
ORIGINAL: collector
Great post. You cant get lost with those instructions, well laid out. Bet that took you some time to sort out getting it up on the forum?
Great post. You cant get lost with those instructions, well laid out. Bet that took you some time to sort out getting it up on the forum?
ORIGINAL: Bassman
Very useful write up. Good pictures too. There's just one thing I didn't understand. Why do you need to remove the left side fairing? I've beeen adjusting the valves on my '93 CBR1000F since I bought it new. I've never had to remove the fairing for this job. Besides the seat and tank I only remove the protective cover over the timing inspection cover. Of course the other bits that block the removal of the valve cover have to come off.
Good point too about setting the clearance a little loose before tightening the lock nut.
Very useful write up. Good pictures too. There's just one thing I didn't understand. Why do you need to remove the left side fairing? I've beeen adjusting the valves on my '93 CBR1000F since I bought it new. I've never had to remove the fairing for this job. Besides the seat and tank I only remove the protective cover over the timing inspection cover. Of course the other bits that block the removal of the valve cover have to come off.
Good point too about setting the clearance a little loose before tightening the lock nut.
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Joined: Jul 2006
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From: Hamden, CT USA
RE: HOW TO: Valve Adjustment (OH.MY.GOD.SO.MANY.PICTURES)
I don't disconect the throttle cables either. It's a real tight squeeze, but I can wiggle the valve cover out with the fairing and cables on. I do see how it would be a lot easier to pull the valve cover off with thefairing off first.
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Senior Member
Joined: Mar 2006
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From: Cape Cod, MA
RE: HOW TO: Valve Adjustment (OH.MY.GOD.SO.MANY.PICTURES)
Sorry, as someone else PM earlier, the forums going down hacked my write up to pieces (this one and the others). I just found out the other day and haven't had a chance to fix them.
RE: HOW TO: Valve Adjustment (OH.MY.GOD.SO.MANY.PICTURES)
That's kind of what I figured. That sucks.
I thought I remembered there being a lot more to it.
Between this write-up and the manual, if you can't figure it out...just give up.
The manual, by the way, does come in handy. (thanks again, shadow)
However, this write-up is awesome...
I thought I remembered there being a lot more to it.
Between this write-up and the manual, if you can't figure it out...just give up.
The manual, by the way, does come in handy. (thanks again, shadow)
However, this write-up is awesome...
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Senior Member
Joined: Mar 2006
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From: Cape Cod, MA
Bumping this back to the first page. Yes I know it's incomplete. I'm working on it on another window ATM with some music blaring to keep me awake for the next hour
Oh yeah, and bigger pictures!!
Oh yeah, and bigger pictures!!
Last edited by malbojah; Jan 19, 2010 at 09:10 PM.
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Joined: Dec 2008
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From: knoxville,tn,usa
a big thanks
a big thanks to everyone for the pictures and the comments on this valve adjustment thread...this job could not have been so easy and everything went just like everyone said...so thanks again...now its time to ride....haha
Malbo this is a wicked write up and funny too. Love your style.
Just one thing and I hope you don't think I'm being picky but you've mixed up your inches with mm. The settings you refer to are not mm but thou. I'm sure everyone will work that out for themselves but if you can go down to the local auto store buy a set of gauges that measures 0.004mm I'd love to know where it is.
Correct settings for valves in mm should be- Inlet=0.1 +/- 0.02mm. Exhaust=0.18 +/- 0.02mm.
Your specs are correct in imperial.
The two gauge method is also my favourite. One goes in, one doesn't. And you're right, the exhaust valves nearest the frame are a pain in *** to get to.
Just one thing and I hope you don't think I'm being picky but you've mixed up your inches with mm. The settings you refer to are not mm but thou. I'm sure everyone will work that out for themselves but if you can go down to the local auto store buy a set of gauges that measures 0.004mm I'd love to know where it is.
Correct settings for valves in mm should be- Inlet=0.1 +/- 0.02mm. Exhaust=0.18 +/- 0.02mm.
Your specs are correct in imperial.
The two gauge method is also my favourite. One goes in, one doesn't. And you're right, the exhaust valves nearest the frame are a pain in *** to get to.
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Joined: Aug 2008
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From: Wellington, New Zealand
Hi guys, this is a wicked write up !
I also found the Common Honda Service + Haynes Manuals detail another way of cecking the valve clearances. It requires checking the clearances at # 1 & # 4 cylinder TDC which only requires turning the crank 1 complete revolution / lining the timing marks for both, which is good if you only have one spider gear timing mark like on my bike.
I compared valve clearances for both methods & found my inlets the same & some exhausts a couple of thou tighter but as the are clearances measured from different locations on some cam lobes (between the two methods), i just went for the biggest gap (which happened to be Malbo's write up method).
I sketched up something that you may or may not find helpfull ?
Enjoy !
I also found the Common Honda Service + Haynes Manuals detail another way of cecking the valve clearances. It requires checking the clearances at # 1 & # 4 cylinder TDC which only requires turning the crank 1 complete revolution / lining the timing marks for both, which is good if you only have one spider gear timing mark like on my bike.
I compared valve clearances for both methods & found my inlets the same & some exhausts a couple of thou tighter but as the are clearances measured from different locations on some cam lobes (between the two methods), i just went for the biggest gap (which happened to be Malbo's write up method).
I sketched up something that you may or may not find helpfull ?
Enjoy !
Last edited by mrchips; Feb 9, 2011 at 09:42 PM.
