Author Topic: Valve Clearance - How To  (Read 45998 times)

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Offline EscCtrl

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Re: Valve Clearance - How To
Reply #20 on: April 11, 2016, 02:51:26 AM
*Originally Posted by Gills [+]
I have now finished updating the guide at the start of this thread and will shortly attach a pdf version which can be saved and printed out.

There's nothing that is particularly difficult from a technical point of view in doing this job, but you do need the tools listed, plenty of time and hope that you can get hold of any new shims you need, without having to wait too long!

I just got my shims yesterday.I'll be busy finishing up sometime this week.I agree,it's nothing particularly difficult.Just have to pay attention to how things come apart.A digi cam, or phone with cam,will help those that aren't familiar with doing this type of work.As I take things apart,I put the bolts back in where they go,or place them in the part I took off.

Just a couple pics of my info and shims.



Offline Gills

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Re: Valve Clearance - How To
Reply #21 on: April 11, 2016, 04:09:22 PM
A PDF copy of the guide can be found here: http://www.dicken.plus.com/CB500x-Valves.pdf. It's too big to attach to the forum post, so I've dumped it on some free webspace I've got.

Offline HerrDeacon

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Re: Valve Clearance - How To
Reply #22 on: April 11, 2016, 04:18:30 PM
Wow, thanks again Gills, great stuff. Makes it very easy to print off and bring into the garage or just view on a tablet!

Offline micra

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Re: Valve Clearance - How To
Reply #23 on: April 11, 2016, 04:31:20 PM
Gills....  Outstanding PDF .....  Thank you...  :460:

Offline CB-500-X

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Re: Valve Clearance - How To
Reply #24 on: April 12, 2016, 03:55:53 AM
Thank you for taking the time . Very well done.  :460:

Online motorboy

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Re: Valve Clearance - How To
Reply #25 on: April 12, 2016, 04:32:53 AM
A few clicks it's stored in my documents- it's a keeper :028:
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Offline EscCtrl

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Re: Valve Clearance - How To
Reply #26 on: April 12, 2016, 05:12:59 AM
*Originally Posted by Gills [+]
A PDF copy of the guide can be found here: http://www.dicken.plus.com/CB500x-Valves.pdf. It's too big to attach to the forum post, so I've dumped it on some free webspace I've got.

Great guide.You removed a bit more than I did,but that's ok.It makes it easier to remove the valve cover.That upper radiator hose is a pain in the @$$ to work around tho.CHANGE YOUR SPARK PLUGS WHEN YOU DO THIS!At $10US for a pair,it's cheap insurance against future problems.I'm also changing my air filter and oil as well.



Some people have asked why I checked my valve clearances early,at 9000 miles.My bike struggled to maintain 70 mph up moderate hills, and in strong head winds.It was also breaking up above 6000 rpm.It was like the bike couldn't get enough air,or fuel starved.At one point I thought my coils maybe dying and not providing enough spark.As I was disassembling the bike,I checked all of these things per the service manual.Everything checked out.I didn't have CEL light either.All of my valve clearances were out of spec on the tight side.They are listed else where in this thread.My clearances are now .18mm intake and .28 exhaust.Next time I will set the exhaust at .30mm,the upper limit of the spec.This will allow for a little longer times between valve clearance checks.It will take me about 30,000 miles to make sure this will work as it has on my other bikes.

Offline Gills

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Re: Valve Clearance - How To
Reply #27 on: April 12, 2016, 12:03:47 PM
*Originally Posted by EscCtrl [+]
CHANGE YOUR SPARK PLUGS WHEN YOU DO THIS! At $10US for a pair,it's cheap insurance against future problems.

Very good point. I meant to add this, as well as saying to do it either before or after having the cam cover off, so you don't have holes into the cylinders to accidently drop shims into!

I went for Iridium plugs, having had good results with them in the past, and I think it's helped at small throttle openings and smooth pickup at low engine speeds.

Offline Susi_X

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Re: Valve Clearance - How To
Reply #28 on: April 12, 2016, 12:40:04 PM
a big thank you Gills!
 :028:  :020:

Offline Grim Rider

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Re: Valve Clearance - How To
Reply #29 on: April 12, 2016, 12:57:03 PM
Great post Gills - many thanks; will no doubt prove extremely useful in due course!  :046:
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