Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: pete b on November 01, 2009, 09:16:01 PM

Title: xbr500cylinder head overhaul
Post by: pete b on November 01, 2009, 09:16:01 PM
Hi following my last question re starter clutch I got the starter to engage long enough to run a compression test  and found comp to be only 120psi should be 172+or- 21 so have decided to go for a top end overhaul. can anyone give me any idea on what the cam chain  tensioner special tool looks like or is there some other way to release the cam chain tension so I can get the cam out and the head off.thanks for the link to dutch site for starter clutch .Thanks again pete b ;D
Title: Re: xbr500cylinder head overhaul
Post by: guest7 on November 01, 2009, 09:19:18 PM
I can lend you a cam chain tensioner tool. PM and we can talk about it.

Having said that, when I bought mine it was only about £8.50 so it might be worth trying a honda dealer or David Silver.

GC
Title: Re: xbr500cylinder head overhaul
Post by: pete b on November 01, 2009, 09:40:28 PM
thanks I will try dave silver in the morning if i cant get one I will send you a pm  cheers Pete b;D
Title: Re: xbr500cylinder head overhaul
Post by: guest564 on November 10, 2009, 10:44:55 PM
To get the cam out you just have to pull out the pin that holds the tensioner assembly in place. To refit the assembly I have always used a large scewdriver to push the spring in, then I slide the tensioner into place and insert the pin. I don't like to think how many times I must have done this.
Title: Re: xbr500cylinder head overhaul
Post by: SteveC#222 on November 11, 2009, 09:04:52 AM
When you do get the head off you may well find a hairline crack from the plug hole to one of the valve seats. Don't Panic!  ...it's an XBR thing, most XBR's have this crack any it doesn't usually cause any problems.