millstone10

There she is... No 5

I approached them last year (November) about 14x6 5 spoke wheels, unfortunately they couldn't do them any more. "Hi Nigel, Many thanks for your enquiry. You are correct that we no longer produce the 6x14" 5 spoke wheel. Unfortunately we do not make / cannot produce any 14" 5 spoke wheels. Many thanks for the proposition, however in this instance we are unable help you. With best regards Chris Butcher SCP / Revolution Wheels Apollo, Lichfield Road Industrial Estate Tamworth, Staffordshire, B79 7TA. UK Tel +44 (0) 1827 64111 / 54422 Fax +44 (0) 1827 63911     Email revolution@scp-uk.com " Might be different with a genuine group buy. I did mention that I might see if there was such interest but it seems they couldn't do it. A more formal enquiry from a club may be more forthcoming though.

I approached them last year (November) about 14x6 5 spoke wheels, unfortunately they couldn't do them any more. "Hi Nigel, Many thanks for your enquiry. You are correct that we no longer produce the 6x14" 5 spoke wheel. Unfortunately we do not make / cannot produce any 14" 5 spoke wheels. Many thanks for the proposition, however in this instance we are unable help you. With best regards Chris Butcher SCP / Revolution Wheels Apollo, Lichfield Road Industrial Estate Tamworth, Staffordshire, B79 7TA. UK Tel +44 (0) 1827 64111 / 54422 Fax +44 (0) 1827 63911     Email revolution@scp-uk.com " Might be different with a genuine group buy. I did mention that I might see if there was such interest but it seems they couldn't do it. A more formal enquiry from a club may be more forthcoming though.

Hi J If that were an SU I would say its the float chamber needles/float height incorrect/worn allowing level above the jet. From this it may be similar in your carbs? * Rich mix problems (poor fuel economy, excessive CO emissions). High fuel level in the fuel bowl (incorrect float adjustment or defective float, leaky needle valve), clogged or dirty air bleeds, internal fuel leaks or incorrect idle mixture adjustment. This condition can also sometimes be caused by a defective charcoal canister purge valve that allows raw fuel to be siphoned into the carburetor. http://www.aa1car.com/library/carburetor_honda_keihin.htm Just a thought...

jcarruthers wrote:Difference option now added :) Just check the "Difference" box Fantastic!

jcarruthers wrote:That might be a little out of scope— as its a bit beyond my maths unless someone can provide equations Something I will be implementing is a "difference" mode so you can compare the main needle to others a lot more easily. Which I think is what your graph is doing? :)  its a bit beyond my maths too, although I do work with a few smart bastards who might put me in the right direction. The graph above is just a difference between the BDQ (black reference) needle and the others. The other side of the graph mimics your needle graph so I could see them side by side. I was trying to see how a weaker spring may "see" the needle a couple or stations higher at the same vacuum force...

Hi James I've been playing with the HS6 needle graphs and heavily relying on you site - many thanks. I have been trying to get my head around how changing the spring can change the fuelling as I recently found that I have green 12 oz springs in the twin HS6 carbs on my GT6 (ex sprint) not the usual yellow 8oz. The needles had been changed by a local garage to a very rich one to compensate (BDT). I've got a couple of springs ordered to change this to yellow,Red and Blue and see what happens... Changing the spring seems to be a little used tuning tool as it seems Triumph already did this with the Dolomite sprint (yellow) to TR7 (red) with the same needle (BDQ). I dont know if it is possible to incorporate this somehow. I was also looking at this version of the graphs to try and see where a weaker/stronger spring may read when the piston is allowed to change position due to the change in spring strength. It should be possible to model the spring and vacuum pressure to derive piston height with some experimentation and practical calibration...  ??) I have been trying to collate a table of the various needles used in the HS6 carb as well. I think this type of list used to be in the Triumphtune manual but Ive long lost my copy and its probably not such a great reference anyway. This is where I have got to: I'd be interested if anyone knows of any more applications or corrections! p.s. I hope you view the plagiarism as the compliment that is intended!