SOHC.co.uk Forums > CB750
Engine smoking
yozzer74:
Ha cheers for that Pete and I'm starting to no what you mean about messing with your head .
yozzer74:
Just been thinking those 4 large o rings that go on bottom of cylinders .if there not on properly would they let oil into barrels and make it smoke .
Johnwebley:
--- Quote from: yozzer74 on October 17, 2016, 06:23:54 PM ---Just been thinking those 4 large o rings that go on bottom of cylinders .if there not on properly would they let oil into barrels and make it smoke .
--- End quote ---
those are to stop oil inside ,stay inside,should have affect on pistons and bores
go with Pete,run it a bit longer
yozzer74:
Yeah that's what I'm going to-do really don't want to pull engine out .
MarkCR750:
Try to avoid constant revs, as above accelerating and shutting off is good for running in, keep going up and down the box, obviously don't thrash it but at the same time don't treat it like a baby, and yes mineral oil for the first 500 miles at least, my new Ducati comes with mineral oil from the factory, it swaps to fully synthetic after a minimum of 600 miles, not sure what revs you should do as max for the honda when running in, Ducati is 6k for 600 miles, the book recommends you find "hilly areas" then 7k for 600, then do as you like, very different engine though , anyway I hope it's just the bedding in that's causing the issue, really annoying if not!
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