Valve Clearance Check

[fruitcake]

 

I would guess that Inlet valves actually may remain partly open when seats are worn and clearances not adjusted - but at what mileage would this normally happen ? Anyone having registered their gap increment rate to tell ?

 

Yeah that's the danger, too tight and you risk burning the valves out.  Too loose and you get lash.

 

Mileage is a bit hard to say as it depends how you ride.  Pootle along at low revs and it could go ages.  Hammer the bike at high revs constantly and expect faster wear.

 

Following the service intervals is always the best advice.