I'm sorry if this has been covered before, but I have just spent an hour looking for it using the 'Search' facility to no avail. There's some great Concentric input by Martyn, Craig and others but nothing that helps me with my conundrum.
I am working on a mate's Shadow and, unknown to him, he had a massively weak mixture on the front pot only as evidenced when I removed the exhaust pipes. It didn't take me long to discover not one, but two, big air-leaks in the 'orrible two-piece clip-together inlet manifold. I've replaced that with a nice alloy 30mm double-flanged one from the from the VOC Spares Co Ltd.
So all that is left is to strip, clean, check and reassemble the 930 Mk1 Concentric carb. A new experience for me after 45 years of Vincenteering (keep 'em standard I say!). The carb was nice and clean (quite new I think) but what is that unused threaded hole in the body - and where is the idle jet? Photo attached. The threaded hole is at 1 o'clock; is that where the idle jet is supposed to be?! In which case, what size is recommended? (Incidentally it has a 190 main jet and No.3 slide - comments?).
Thanks in anticipation,
Peter B
Bristol, UK.
STILL WANTED: Series 'A' Front Frame.
I am working on a mate's Shadow and, unknown to him, he had a massively weak mixture on the front pot only as evidenced when I removed the exhaust pipes. It didn't take me long to discover not one, but two, big air-leaks in the 'orrible two-piece clip-together inlet manifold. I've replaced that with a nice alloy 30mm double-flanged one from the from the VOC Spares Co Ltd.
So all that is left is to strip, clean, check and reassemble the 930 Mk1 Concentric carb. A new experience for me after 45 years of Vincenteering (keep 'em standard I say!). The carb was nice and clean (quite new I think) but what is that unused threaded hole in the body - and where is the idle jet? Photo attached. The threaded hole is at 1 o'clock; is that where the idle jet is supposed to be?! In which case, what size is recommended? (Incidentally it has a 190 main jet and No.3 slide - comments?).
Thanks in anticipation,
Peter B
Bristol, UK.
STILL WANTED: Series 'A' Front Frame.