SOHC.co.uk Forums > CB750

F2 Engine

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Galea:
From the sohc4 forums, makes for some interesting reading:

http://forums.sohc4.net/index.php?topic=10540.0

kifer:
Wow cheers Galea, After reading all that I think I should weigh it in and buy a kwaka.

Galea:
I wouldn't  :)

Waggles:
I read the US post with interest. Now I have often wondered why there are oil seals on valve guides, surely you want a little oil to go down them? it makes sense thinking about exhaust gases getting into the oil via them.

SO this raises a question in my mind, would it be better to leave the seals off as long as you change the oil at around 1000 miles? ( as I do anyway ) would that improve guide life?

Still don't think its cause for panic tho, an awful lot depends on how you treat the bike. If you motor lives up around the red line mostly then it stands to reason it will wear out quicker ..... reckon I will use Hondaman's tip of greater exhaust clearances, can't do any harm and is simple to do.

Galea:
Today I adjusted my exhaust valve clearances at 0.004" too.  No difference in engine tappet noise to my ears  ;)

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