Thanks so much! There's hardly any boot wear on the case so I'm guessing the hours are pretty low. The bike was purchased many years ago and has been collecting dust until now.
By lash you do mean valve clearance right? If so, they are way out of spec on the tight side. Would that require valve/spring replacement, or just adjustment?
I'll pick up a piston/rings and just get that out of the way if i'm already going to be in there anyways.
Again, thanks for your reply as it's been very helpful
Yes by lash i am talking about Valve Clearance , generally once they start going out of adjustment , its only a matter of time (sometimes only a few rides) till the valves "zero out" which means you will not find a small enough shim to "adjust" the valve clearance , which means the valve face is worn or cupped and the valve seat in the head itself will need to be re-cut or replaced depending on the damage/wear done , (basically you need a valve job) , if your not "racing" at a professional level where every ounce of weight is saved , you can switch to Stainless intakes , and your valve maintenance will be mostly non existent , i race my 450R with Stainless Intakes with no issue , you just need matching valve springs for the Stainless valves as they are heavier than Titanium and need stiffer springs (Ken , the owner here does valves , his work is excellent and his prices are very reasonable especially compared to big name places like Pro Circuit , etc , and his work is on par with them , and he has a very quick turn around
, so you will be back up and riding in no time)
https://www.crfsonly.com/catalog/index.php/cPath/258
And yes , doing the valves now while your tearing it down would be the best time , then you will have the rest of the riding season (which is just underway) to enjoy riding