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Mikuni Carbs and Manifold Adapter #274910
09/16/09 7:59 pm
09/16/09 7:59 pm
Joined: Jan 2008
Posts: 1,522
Farmington,Connecticut,USA
JBMorris Offline OP
BritBike Forum member
JBMorris  Offline OP
BritBike Forum member
Joined: Jan 2008
Posts: 1,522
Farmington,Connecticut,USA
Hi Guys,
The carb kit i have recommends the body and the alloy adapter should be 1/16" clear to prevent 'Frothing'.(And keep them from rattling)
I'm planning on using a fat O-ring to separate the two.
Good idea?
Bad idea?
I have replaced the rubber connector from radiator hose to an auto gas filler hose- much stiffer and should wear better.
Original hose cracked after one year's use.
All info welcome

Last edited by Brimor; 09/16/09 8:01 pm.

1978 Bonneville T140V PX
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Re: Mikuni Carbs and Manifold Adapter [Re: JBMorris] #274932
09/16/09 11:20 pm
09/16/09 11:20 pm
Joined: Aug 2001
Posts: 4,441
Owego, NY, USA
Mark Z Offline
BritBike Forum member
Mark Z  Offline
BritBike Forum member
Joined: Aug 2001
Posts: 4,441
Owego, NY, USA
I've never had a problem with rattling, and I just shove 'em together. I think when you tighten the hose clamps, the hose pushes them apart just a bit. Or the hose is so stiff that it prevents any movement.

I figure that little space can't be good for fuel flow - the original couplers (from MAP) were "stepped" on the inside to fill the gap. But, they were way soft and only lasted a couple of months. Yeah maybe an o-ring or a rubber washer, but it better be neoprene or Viton.

Yeah fuel filler hose - that's the stuff!


Mark Z

'65(lower)/'66(upper, wheels, front end, controls)/'67(seat, exhaust, fuel tank, headlamp)/'70(frame) A65 Bitsa.

Moderated by  Alan_nc 


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