SOHC.co.uk Forums > CB750

750 Oil control jets.

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Bryanj:
Sorry but seen so many disasters i really think its worth removing them to clean for sure, only gasket needed would be rocker box and if removed carefully that may be reusable if the engine has not run

NigelWilmshurst:
I agree definitely remove and clean these little restrictors, also test all the little oil ways in the cam carriers, I use brake cleaner as it evaporates to loosen any oil and blow out with an air line to check every oil way is clear.

MarkCR750:
Hmm, your right of course Bryan/Nigel, have I got the energy to take the engine out again?, I suppose it's less work than replacing the cam etc, thanks for the advice.

Waggles:
Mark,

I have to agree that checking the jets is undoubtably the best and safest option, just to add a little balance tho I did not rebuild my F1 motor which had sat for 25 years. I reasoned that as it was very low mileage it had not been apart so hopefully all was well. I have done around 5,000 miles on it now with no problems. Risky? probably, lucky? definitely, but it is possible.

Just didn't want you to feel lonely as the only one who had risked it!  ;D

Bryanj:
If it hasn't had a problem and had not been apart the risk is minimal, problem with the one under discussion is that it did run a bearing and has been apart so those jets need checking

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