Author Topic: JRC Carb advice  (Read 7203 times)

Offline KiwiGF

  • Last had an A10 in 1976, in 2011 it was time for my 2nd one. It was the project from HELL (but I learned a lot....)
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Re: JRC Carb advice
« Reply #15 on: 04.07. 2012 11:45 »
Just a thought but an air leak can cause a fast tickover as it prevents the carb being able to limit air going into the engine, unlikely but you never know....
New Zealand

1956 A10 Golden Flash  (1st finished project)
1949 B31 rigid “400cc”  (2nd finished project)
1968 B44 Victor Special (3rd finished project)
2001 GL1800 Goldwing, well, the wife likes it
2009 KTM 990 Adventure, cos it’s 100% nuts

Offline A10Boy

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Re: JRC Carb advice
« Reply #16 on: 04.07. 2012 12:49 »
I feel for you suffering these woes. My A10 has the old Amal 376, sometimes it ticks over like a watch, other times it's either too fast and sometimes it stalls.

I am thinking of going the JRC route but not if it's a b'stard to set up.
Regards

Andy

1958 Super Rocket
Plus
Harley Super Glide Custom
Yam XJR 1300

Online rocker21

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Re: JRC Carb advice
« Reply #17 on: 04.07. 2012 12:53 »
no problems to set up, i see you are in the uk so i can offer support if you buy from me as i am the sole importer into the uk and have done several A10's see website     www.brillbikeparts.co.uk 
you can buy with paypal, send me a cheque or ring me and i can take debit cards over the phone.

1960 A7SS, 1954 Ariel fieldmaster 500 twin, motoguzzi Monza 500, motoguzzi V7III special, new triumph speed 400
www.brillbikeparts.co.uk

Offline A10Boy

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Re: JRC Carb advice
« Reply #18 on: 04.07. 2012 13:04 »
So, as we are all members of this forum, do you have the info that JFligg needs? Are you prepared to tell him what his set up should be, or at least a good starting point?

Regards

Andy

1958 Super Rocket
Plus
Harley Super Glide Custom
Yam XJR 1300

Online rocker21

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Re: JRC Carb advice
« Reply #19 on: 04.07. 2012 13:21 »
difficult for me to do from here as the petrol over there is not the same as it is here, got different stuff in it and a different level of ethanol in it so that will effect the settings, i know what works in the uk and most of the EU as the fuel is the same, but north America is different which is why i gave out the email address of JRC in California as Bill is very helpful and will help, for some reason his bike won't tick over and is running rich and with the main jet he has it should not be that far out, as i said in a previous post i suspect something is wrong with the fuel enrichment device for cold starting as that produces a fast tick over and makes the mixture rich, but without seeing it, it is hard to diagnose and as he is in Canada it is probably better to deal with a local agent or direct with JRC .
1960 A7SS, 1954 Ariel fieldmaster 500 twin, motoguzzi Monza 500, motoguzzi V7III special, new triumph speed 400
www.brillbikeparts.co.uk

Offline jfligg

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Re: JRC Carb advice
« Reply #20 on: 05.07. 2012 02:09 »
Hi Guys
  I want to thank everyone for all there help.  It turns out that it wasn't a jetting issue.  The needle was foulling on the carb body and not causing the slide to fully close.  I hope it is not misaligned carb body and just a bent needle.  I'll keep everyone posted.  Jeff

Online rocker21

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Re: JRC Carb advice
« Reply #21 on: 05.07. 2012 09:33 »
not seen that one before, that is one to remember .
1960 A7SS, 1954 Ariel fieldmaster 500 twin, motoguzzi Monza 500, motoguzzi V7III special, new triumph speed 400
www.brillbikeparts.co.uk

Offline muskrat

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Re: JRC Carb advice
« Reply #22 on: 05.07. 2012 09:46 »
 Great to here Mike.
 Gotta be carefull with that little plastic bit that sits between needle and spring. Bugga of a thing to get the cable in.
But a great carb when tuned right. Ain't that fun when the motor is tuned a bit with 2 x 30mm PWKs, straight through rev cone megas and no filters. The only bit I didn't change was the float. And getting RSI holding wide open against 2 of those springs. Will have to find lighter ones.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Offline dbd32

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Re: JRC Carb advice
« Reply #23 on: 27.08. 2024 23:09 »
Hi Rocker21
Can you supply me with the jrc carb for my 1960 BSA A10
If so whats the cost

Online Joolstacho

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Re: JRC Carb advice
« Reply #24 on: 28.08. 2024 01:10 »
Mine just bolted on complete with the nice little air filter and started first kick.

Online rocker21

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Re: JRC Carb advice
« Reply #25 on: 28.08. 2024 09:33 »
yes i have 30mm power jet carbs in stock, £147 + courier charge, dont use post any more.
pm me with your details and i will email you an invoice.
Ken
1960 A7SS, 1954 Ariel fieldmaster 500 twin, motoguzzi Monza 500, motoguzzi V7III special, new triumph speed 400
www.brillbikeparts.co.uk