Author Topic: Main Jet Holder  (Read 734 times)

Offline adespin

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Main Jet Holder
« on: June 16, 2018, 04:32:03 PM »
Stripped the carb's down today to see why the K1 was running rough from idle to partial throttle. All the float levels were way out, but the main problem was number three carb main jet holder is bent, it felt odd unscrewing it (slack, tight and so on) and the needle end was taper ground to make it fit. This bike is a recent American import.
  My problem is getting hold of one as David Silver doesn't seem to stock them, any ideas anyone?
1971 cb750 K1

Offline adespin

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Re: Main Jet Holder
« Reply #1 on: June 16, 2018, 11:51:05 PM »
Anybody ??
1971 cb750 K1

Offline JamesH

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Re: Main Jet Holder
« Reply #2 on: June 17, 2018, 08:34:46 AM »
Problem is adespin, as this part is NLA the only way to supply one is to render a complete set of carbs useless by remving one of the four. Unless you can pick up a single carb body on eBay somewhere?

James

Offline adespin

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Re: Main Jet Holder
« Reply #3 on: June 17, 2018, 10:19:03 AM »
Thanks for the reply James, i'll try to bend it back into shape, beats me how it got bent in the first place.
1971 cb750 K1

Offline JamesH

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Re: Main Jet Holder
« Reply #4 on: June 17, 2018, 11:05:10 AM »
Thanks for the reply James, i'll try to bend it back into shape, beats me how it got bent in the first place.
The only way i imagine it could have happened is by someone putting the needle seat holder in backwards (ie so it couldn’t seat properly in the carb) and then trying to install the jet holder / nip it up. Maybe use the jaws of a lathe or hand drill to try and straighten it. I’d apply some heat first. Good luck!

Offline RGP750

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Re: Main Jet Holder
« Reply #5 on: June 17, 2018, 11:20:05 AM »
Is this what you are after?
1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline adespin

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Re: Main Jet Holder
« Reply #6 on: June 18, 2018, 10:36:09 AM »
Yes, that's the one.
1971 cb750 K1

Offline RGP750

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Re: Main Jet Holder
« Reply #7 on: June 18, 2018, 12:53:49 PM »
PM me your address and give a donation to the forum please .
Cheers Rich
1972 500/4
1973 CB175
1972 CB175
1959 BSA Super rocket
1927 960cc Matchless 'v' twin
1969 750 K0

Offline adespin

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Re: Main Jet Holder
« Reply #8 on: June 18, 2018, 01:49:48 PM »
PM sent but not sure if i've done it correctly, let me know, donation made.

Many Thanks,
Adrian.
« Last Edit: June 18, 2018, 02:17:54 PM by adespin »
1971 cb750 K1

 

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