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CB450 KO (black bomber)

CB160, CB350, CB360, CB450
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motorboy3
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Location: England

CB450 KO (black bomber)

Post by motorboy3 » Sat Aug 05, 2017 5:45 pm

Any Idea's My bomber starts and idles great but when i take it out for a run and stop at a red light or the like the revs drop to 500rpm and it cuts out(engine stalls)? Also does any one know what are standard numbers for the pilot and slow jet UK bike

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G-Man
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Re: CB450 KO (black bomber)

Post by G-Man » Sun Aug 06, 2017 2:23 am

You might have a problem with a vacuum forming in the tank.

Does the bike start right up afterwards?

Have you tried adjusting the throttle stops?


G
motorboy3 wrote:Any Idea's My bomber starts and idles great but when i take it out for a run and stop at a red light or the like the revs drop to 500rpm and it cuts out(engine stalls)? Also does any one know what are standard numbers for the pilot and slow jet UK bike
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'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

motorboy3
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Joined: Sun May 31, 2015 5:23 am
Location: England

Post by motorboy3 » Sun Aug 06, 2017 2:53 am

hi yes it does start right away stright of the button and idles around 1,000 rpm, i have tried lose
the tank cap if i set the throttle stops to say 1500 rpm it does not cut out but of cores this is to high,

rrietman
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Location: bellingham wa.

Post by rrietman » Sun Aug 06, 2017 11:09 am

G; any way you can post that carb sheet in a printable form? I don't have sheet and it has some handy info
Thanks
Randy

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malcolmgb
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Location: Midlands UK & Cleveland OH

Post by malcolmgb » Fri Aug 11, 2017 7:03 pm

rrietman wrote:G; any way you can post that carb sheet in a printable form? I don't have sheet and it has some handy info
Thanks
Randy
It is a picture, just right click on it and save as an image then print out.
1977 CB400F
1973 CL175
1976 XL175 - Sold
1964 CL72
1966 CA78

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