SOHC.co.uk Forums > CB750

Jetting?

(1/8) > >>

Arch stanton:
I realise this must have been asked before. So forgive me but.....
I have a 750k1 fitted with a original Marving 4 into 1pipe.
It also has Bell mouths.
The bike appears to ride quite well really but. Is a bit wooly when at low revs. Then pulls OK, ish but runs out of steam in the higher mid range.
What is the recommended starting point for jetting a bike with these mods?

Trigger:
Recommended starting point is : Put a STD air box on and not sure what the back pressure is on Marving 4 into 1pipe but, these engines love back pressure ;)

Arch stanton:
But I don't want a standard airbox.
I used to run my F1 with this set up. And it ran very well indeed for the 50.000 miles I had it.
But I cannot remember the settings I used.

Bryanj:
Original marving had basicaly a tube up the inside with 3/8 holes all along it so basicaly no back pressure!

Trigger:

--- Quote from: Arch stanton on April 14, 2019, 07:13:56 PM ---But I don't want a standard airbox.
I used to run my F1 with this set up. And it ran very well indeed for the 50.000 miles I had it.
But I cannot remember the settings I used.

--- End quote ---

A F1 is not a K1  ;)

Navigation

[0] Message Index

[#] Next page