Join Date: Feb 2009
Location: south lake tahoe, ,
Re: valve check
[QUOTE=Voyager;1433049]What is the history of the bike? Year, miles, time between oil changes, oil used, etc.
Pitting isn't a good thing and generally means the bike has sat idle for long periods, run too many miles between oil changes or used an oil of too low a viscosity and with too little anti wear additives such as Zinc (i.e., a modern auto oil, particularly of the "energy conserving" persuasion).
It may just be the lighting, but your cams seem to have a lot of varnish on them. Mine looked a lot cleaner at my last check which was at 27,000 miles. I run Castrol 4T 20W50 dino oil with changes every 6,000 or so.
Well Dennis and Voyager, it's possible the pitting problem is with the oil. There is no noticeable varnish on the cams, so it is the lighting
99' LT has 96,000 - I put the last 46,000 on but due to home projects I rode less than 3,000 this year . Oil gets changed every 3,000 but I switched from castrol 20/50 dino to mobil 15/50 syn because the engine was groaning during the 30 degree f startups. It starts much easier now but maybe I should return to dino oil. Then again, maybe not. The mobile syn container says it has extra zinc added
Last edited by seahabit; Oct 27th, 2015 at 11:28 am.
Reason: more info