Author Topic: RD350B choke plunger  (Read 588 times)

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Offline psoidon

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Re: RD350B choke plunger
« Reply #15 on: November 22, 2020, 05:54:47 PM »
Dimensions are identical, like I say the only difference is the seat.
The older part has more of a rolled edge, it looks like the newer one has a slightly different method of retaining the rubber seal.
If you look at an older part, you can see the wear at the point of contact with the carb body, looks to be about 2mm so I can't see the bigger seat making any difference.
My guess is it is just an easier manufacturing process.

At £7.86 its worth a try ;-)

Ian
1978 CD175 (Unstarted project)
1974 RD350
1980 Z650 C3
2001 Vmax

Offline Gr8uncleal

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Re: RD350B choke plunger
« Reply #16 on: November 22, 2020, 06:36:24 PM »
Thanks Ian, but what are the dimensions (length & diameter), or am I having a senior moment and have missed them?!
Yam RD200DX (Gr8auntiepat's)
Yam FZX700 Fazer
Yam RD400 bitsa
Yam RD350B rough
Yam RT2 almost finished
Yam DT360A almost finished
Suzi GT550J just started
Suzi 1250 Bandit regular rider
Yam RD125B (probably!) now being reassembled
Yam AS3 in boxes

Offline psoidon

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Re: RD350B choke plunger
« Reply #17 on: November 22, 2020, 07:41:56 PM »
Overall length is 40mm, dia of base 8mm, dia of shaft 4.8mm

Ian
1978 CD175 (Unstarted project)
1974 RD350
1980 Z650 C3
2001 Vmax

Offline Gr8uncleal

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Re: RD350B choke plunger
« Reply #18 on: November 22, 2020, 08:28:16 PM »
Thanks, much appreciated.
Yam RD200DX (Gr8auntiepat's)
Yam FZX700 Fazer
Yam RD400 bitsa
Yam RD350B rough
Yam RT2 almost finished
Yam DT360A almost finished
Suzi GT550J just started
Suzi 1250 Bandit regular rider
Yam RD125B (probably!) now being reassembled
Yam AS3 in boxes

Offline Ian Anderson

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Re: RD350B choke plunger
« Reply #19 on: November 23, 2020, 10:44:57 PM »
Attached picture shows the number of common parts across carbs. Hence the difficulty in picking the correct number.
Yamaha RD350B 1976, Vincent Comet 1952, Triumph Tiger 1962, BSA B31 1946, Yamaha TY175

Offline 5port

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Re: RD350B choke plunger
« Reply #20 on: November 24, 2020, 07:22:01 PM »
And that is just the start of it!  That is just the generic Mikuni VM parts! most bikes have bespoke carbs for their production, and many parts are different. Think of the RD rubber cap on the top of the carb, the one with pleats, a RD specific part and most parts are.  The RD Carb bodies are different to the generic Mikuni VM, etc,etc. 
Cheers

5port 
5port