SOHC.co.uk Forums > CB750
Clutch plates
Trigger:
--- Quote from: Pauarc on July 26, 2023, 08:20:52 PM ---Yes trigger should have listened
the putoline 10w40 was no good for my CB750k
Just now I like to get tikover down to about 1000 steady?mainjet 120 slow 40
--- End quote ---
1000 rpm is too low and why have you got 120 main jets in ?
Athame57:
--- Quote from: Trigger on July 26, 2023, 11:37:24 PM ---No good in a 400 engine. You need to use 10w/40 or 15w/40 mineral oil ;)
--- End quote ---
Thanks for this Graham. Next time I'll get that instead, surely nothing will go bang using it in one change though? :-\
Trigger:
--- Quote from: Athame57 on July 26, 2023, 11:46:13 PM ---
--- Quote from: Trigger on July 26, 2023, 11:37:24 PM ---No good in a 400 engine. You need to use 10w/40 or 15w/40 mineral oil ;)
--- End quote ---
Thanks for this Graham. Next time I'll get that instead, surely nothing will go bang using it in one change though? :-\
--- End quote ---
Too thick for a 400 gear box pump ;)
Athame57:
--- Quote from: Trigger on July 27, 2023, 01:03:34 AM ---Too thick for a 400 gear box pump ;)
--- End quote ---
I'd best go on hold a couple of days until I get some then! BTW I've been using any old four stroke M/C oil these past five years, hope I haven't done any harm. :o
Martin6:
--- Quote from: Trigger on July 26, 2023, 11:40:12 PM ---
--- Quote from: Pauarc on July 26, 2023, 08:20:52 PM ---Yes trigger should have listened
the putoline 10w40 was no good for my CB750k
Just now I like to get tikover down to about 1000 steady?mainjet 120 slow 40
--- End quote ---
1000 rpm is too low and why have you got 120 main jets in ?
--- End quote ---
Trigger,
This is an interesting post and got me searching through the Honda workshop manual. 120 jets were on the 750s K0 to K4. K5 no mention of a change, but K6 are specified as 105 main jets. Are the carbs different on a K6? Do you know how they differ?
I have my idle set higher on my old bikes. I don't have any justification. It just feels kinder to avoid chugging and get a bit more oil pressure. My CB750K6 is set at between 1200 and 1400rpm. But the Honda manual does say 850 to 1,000rpm. Could you explain why you would avoid 1,000rpm?
Thank you.
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