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Hiflyer
27th August 2009, 21:26
I'm getting 2 inlet valves and 2 exhaust valves replaced in one cylinder, both cam chain tensioners replaced as well.

Will I need to run the parts in? or will I be sweet to go on the motorway/rev the bike higher than 6k or whatever
quickbuck
27th August 2009, 21:42
No run-in required.
Your valves will slide up and down the valve guides many millions of times without causing any wear on the stems.... Well, next to nil.

Running-in is for Piston Rings to match the bore of an engine.
It is debatable if you even need to worry about that these days.
CookMySock
27th August 2009, 21:59
Nah you should be fine, mate.

Just ride it very quietly for the first few minutes and keep an ear open for any unusual sounds - kill it and phone the guy if it makes any strange noises.

Then whip out on the motorway and spend 20 mins or so at 6-7000 rpm, again - listen for anything amiss. After that, its business as usual.

Good to hear you are back in business. ;)

Steve
hospitalfood
27th August 2009, 22:26
your bike has the same amount of valves in one cylinder as either of my bikes have in there entire engines
Hiflyer
27th August 2009, 23:32
your bike has the same amount of valves in one cylinder as either of my bikes have in there entire engines

its cos it needs backups.... its a hyosung!!!! : P


Nah you should be fine, mate.

Just ride it very quietly for the first few minutes and keep an ear open for any unusual sounds - kill it and phone the guy if it makes any strange noises.

Then whip out on the motorway and spend 20 mins or so at 6-7000 rpm, again - listen for anything amiss. After that, its business as usual.

Good to hear you are back in business. ;)

Steve

Good idea, I'll do that actually!!

damn no ipod in ma ear for a while then hahaha


No run-in required.
Your valves will slide up and down the valve guides many millions of times without causing any wear on the stems.... Well, next to nil.

Running-in is for Piston Rings to match the bore of an engine.
It is debatable if you even need to worry about that these days.

Is that really all running in is for? haha I never understood it ay, I just thought it was like stretching ur legs/torso b4 a run,


ept humans dont exactly run at 10000 steps per minute