XL250s oil starvation?

[Curtis]

Iv got a XL250s here..it keeps running dry in the head. Iv checked the oil pump and gallery's as much as I can without splitting the cases, no obvious cause yet. Any ideas?? 

[sleepy]

Seen a few that have suffered from silastic mechanics. Oil galleries and big loose goobs of silastic don't mix.

[matcho mick]

watch the transferr sleeve pipe,really flogged out camchains can cut through resulting in low ,or none reaching the top,pain ita removing them too when that happens!,

[ELC hunter]

I rebuilt an xr500 I think it was a 82 for a mate the last owner had lost the oil pipe that you mentioned so he replaced it with a bolt and didn't tell anyone you can figure how bad the engine suffered after that and the mates wallet, little traps can always be found from the inexperienced when repairing things keeps life interesting.   

[Curtis]

all good points...ill get in there and have a look when time allows. Thanks!