head port

[mcollier]

hi guys can you help, ive got a leak coming from the top of the head i think.
ive removed engine and found a hole under each head port for exhaust and there seems to be oil coming from there as well, does anyone know what these holes are and if oil is coming from there were is it coming from.
cheers

[cargo]

The four small holes are drain holes for each spark plug reccess........................and if the is oil coming from the holes then oil is leaking into the spark plug reccess

simples

[mcollier]

hi cargo so is it the seals around the top of the spark plug recess inside the rocker cover that have gone cos all spark plugs are dry.
or is there a more serious problem cos bike runs fine
cheers

[Mori Man]

What Cargo said - likely some one removed the wells doing a shim check but didn't put new O rings on - they are one use only so replace every time you disturb.

[mcollier]

cheers for that mate will purchase some new ones and fit them

[cargo]

MM is talking about the o rings at the bottom of the spark plug well/recess

I would reuse the top seals and apply a little sealer

[mcollier]

do u mean the o rings on the spark plug trumpets (if thats you call them) when you remove them there is a o ring around the bottom of these trumpets.

[cargo]

do u mean the o rings on the spark plug trumpets (if thats you call them) when you remove them there is a o ring around the bottom of these trumpets.

That is the ones you should replace.

[Mori Man]

do u mean the o rings on the spark plug trumpets (if thats you call them) when you remove them there is a o ring around the bottom of these trumpets.

Part # 92055-1403 x 4 about a fiver here for them so expect 2 quid each UK

[mcollier]

cheers for your help again new ones fitted

[Mori Man]

That the oil weap sorted ?

Bikes looking real good

[mcollier]

cheers again for valuable advice all sorted.