SOHC.co.uk Forums > CB500/550
Ongoing PD46 carburettor woes (possibly)
JezzaPeach:
Actually just checked a despite the pic 2&3 are well clear, but the long straight ones were the original format (?) so good to keep original look (apart from the pressed metal caps maybe!)
keithtraffic:
Hi All,
So......
I have replaced the coils (with aftermarket ones for DS) as well as the plug caps (just for good measure as the ones fitted actually look pretty good) and unfortunately things have not improved - same poor low revs performance from cylinder 1 and the slight 'sputting' backfire ae low revs is still noticeable.
It's looking like I am going to have to remove the carbs again to make absolutely sure everything is totally clear and clean - but does anyone have any final last thoughts where else to look before I do down this route - it seems most other things have been tried!
Also does anyone have a decent rubber connector between Carb 1 and the air box - I have noticed mine is beginning to split and an not sure it will survive another carb change (but its not the source of any problems as I have made sure its not leaking when testing the tickover!)
Bryanj:
I think that is the especially unique one due to length and shape, it was discussed on the forum elswhere about a member on US site hand making them
OZZYSBIKES:
Re the carb to inlet box rubbers, I managed to get in touch via the us forum and email with the man who is manufacturing replacements, he is very helpful, I got mine delivered in about a week and less than $50 including postage, I'll get his email when I finish work,
PS I am having very similar problems with my bike, I am about to clean the pilot jets for the fourth time which does get the bike running ok for a while, I am on the lookout for a set of alternative carbs as these PD carbs seem prone to issues (odd as they are not particularly complex carbs)
Bryanj:
Problem was then were designed to run as lean as possible for california so any blockage at all makes them impossible
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