Discussion in 'The Garage' started by TC2000, May 30, 2016.
here it is ... Rear shocks changed to modern ones ( I need to stay on the road )
Wow!! That's beautiful! A job well done!
that is awesome!!!
Gorgeous! Really nice. I like that green.
Good job TC2000...
Holy cow. Now i almost regret chopping my '81! ....almost... well done tc!
Beautiful bike, well done.
Nicely done. Looks very good
very nice. were did the original carbs go? those are later years.
I have a few pairs, some very crappy. The ones on the bike might be for XS1B.
How do you spot these are for later years?
Yours have the single choke on the left carb, blockoff plate on right carb. 72-73 carbs...
But nothing wrong with that. Just wondering
I also have these, they need a little polishing to match the bike :
I will swap asap.
Those look like the super-early "W1" carbs. More info in these albums:
Indeed, I found the marking "W1" on these.
I thought the early (69-71) had a raised floor?
Yes, 70-73 has raised floor...
I am looking at the diaphragm tightness, and changed one in XS2 carbs. I have 2 sets of carbs with the starter of the left carb feeding also the right carb (the right carb has no starter valve).
When checking for diaphragm leaks, it seems that there is a leak from the starter circuit. Looking at different carbs, the plunger of the starter has different designs. I even have carbs plungers of smaller diameters that I cannot use.
With the one on the right, the groove allows some air to pass from the vacuum side of the diaphragm to the starter circuit. It does like a punctured diaphragm.
With the one on the left, the diaphragm circuit is tight, and I guess a better control of the slide.
Do you know why this groove should be needed?
I intend to use the one on the left.
Any ideas ?
Yes the starter circuit affects the diaphragm on CV carbs. It could be that groove that's the problem, but you might look closely at the rubber disk on the end of the plunger, I believe that makes the seal to a ridge in the carb body, if the rubber is hard and or deformed and doesn't seal, the diaphragm drops faster.
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