first gen cam end-play
afm199 at earthlink.net
Thu Apr 29 07:52:51 PDT 2010
There might be a tiny bit of play. Are the cam sprocket bolts hitting
the cam chain guard? ( the piece that covers the cam chain and has
three bolts holding it down). That is common.
On Apr 29, 2010, at 7:45 AM, Morgan Jones wrote:
> Hello Everyone,
> I am only a weekend mechanic so bear with me if my terminology is off..
> I recently had some motor work done on my worked '99 SV650. The front
> cylinder needed a new base gasket and 2 new valves. The work was done
> by a competent motor builder. He's a little resistant to the idea
> that he did anything wrong so I'd like some insight from you folks
> before talking to him. If I can fix this myself all the better.
> I just started the motor for the first time since the work and it
> makes an ominous clunking noise from the front cylinder when the bike
> is tilted to the left. You only have to tilt it slightly: think
> leaning the bike to avoid another bike while backing out of the
> I pulled the front valve cover with a friend and local Euro mechanic
> and the top cam moves left to right just slightly but enough certainly
> to cause the clunk.
> The bike is far from stock: it's a 680, has Yoshimura race cams and
> modified valves.. I did not have the work done though I've had the
> bike for years and probably 25 track days so there's nothing
> inherently wrong with the bike.
> I presume there should not be right-left play in the cam? Is there
> adjustment? We know the cylinder was removed so is there a chance
> there's something missing or an adjustment he failed to make?
> Any insight would be great.
More information about the SV650