Author Topic: CB750K7/8 PD carb accelerator jets  (Read 574 times)

Offline martin_uk

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CB750K7/8 PD carb accelerator jets
« on: March 31, 2021, 08:57:49 AM »
I am having a problem cleaning passages without removing the plugs fitted to drilling for accelerator pump jets

I have read about removing the small plugs with pliers, but on mine they are flush with surface so nothing to grip and not sure about putting pressure on jet to try to push down and force plug out.

I have considered drilling out, but then would need to get some made up, unless they are available?.

I have also considered drilling out then tapping hole so that a screw with seal could be fitted, apart from the entry one on carb 2 with pump.

Has anyone found an easy solution?

Are new jets available?

Thanks guys
1977 CB750F1
1977 CB750f1 836
1978 CB750F1
1975 CB500K1

Triumph Street Triple 675R
Ducati 800 Icon Scrambler
Triumph 3TA
AJS 350 mod16
BSA BantamD1
Honda C90zz
Honda CB500X
BSA WD B40 350

Offline martin_uk

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Re: CB750K7/8 PD carb accelerator jets
« Reply #1 on: May 04, 2021, 01:52:57 PM »
I managed to clear obstruction without removing by using carb cleaner and compressed air.

Changed main jets  to 110 from 125 and one 0.4mm washer under needle clip.

Now runs fine  :)
1977 CB750F1
1977 CB750f1 836
1978 CB750F1
1975 CB500K1

Triumph Street Triple 675R
Ducati 800 Icon Scrambler
Triumph 3TA
AJS 350 mod16
BSA BantamD1
Honda C90zz
Honda CB500X
BSA WD B40 350

 

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