DX Carbs on CB400N would they work | The Real Honda Superdream Forum

johnfcbn44dx
Loyal SD rider

CB250/400N Specialist

Posts: 1,002
Mini-Profile Background: {"image":"","color":"19e3e6"}

DX Carbs on CB400N would they work Sept 30, 2021 20:56:41 GMT

Quote

Post by johnfcbn44dx on Sept 30, 2021 20:56:41 GMT

I've done zero work on carbs, so have my L plates up on this section of the parts book...

Just a passing thought, 450DX Carbs on a CB400N, would they work, whilst the CB400N carbs are off getting a scrub and fixing the float valves etc ?

Current, CB250NA in fast silver, Physiotherapy;- CB400N Helios red, CB450DX, CB400F2 .Pending;-, CB250N X3. CB400NC mot t.b.c, to be replaced by CB450DX...

buster
Forum Professor

The Forum Professor Branestawm of “Heath Robinson” Superdreams

Posts: 3,809
Mini-Profile Background: {"image":"","color":"75b2f8"}

DX Carbs on CB400N would they work Sept 30, 2021 21:08:07 GMT

Quote

Post by buster on Sept 30, 2021 21:08:07 GMT

they should work ok (ish), depends how fussy you are. fuel economy might suffer a little (dx carbs being jetted to suit the larger capacity) and they will probably pop and bang (in the exhaust) on the over run. I put my own 450sc carbs on the 400 thing and these are the things that happened, but it otherwise ran quite nicely

johnfcbn44dx
Loyal SD rider

CB250/400N Specialist

Posts: 1,002
Mini-Profile Background: {"image":"","color":"19e3e6"}

DX Carbs on CB400N would they work Oct 1, 2021 7:31:11 GMT

Quote

Post by johnfcbn44dx on Oct 1, 2021 7:31:11 GMT

Thanks for that, I don't expect to be going far with the DX carbs fitted, but that is good to know

, and will also test the "from a running bike" DX carbs. (My parking space garage is only about 50m from the house, but a hilly 600m by road, as any work will be done is done at the house). Useful for when existing running gear is swapped out whilst the existing stuff is overhauled.

Current, CB250NA in fast silver, Physiotherapy;- CB400N Helios red, CB450DX, CB400F2 .Pending;-, CB250N X3. CB400NC mot t.b.c, to be replaced by CB450DX...