SOHC.co.uk Forums > CB750
Popping, poor running
MarkCR750:
Good news, after spraying half a 500ml tin of carb cleaner up the primary balance tube, and using a syringe to suck the carb cleaner back and forth it is now running on all 4, with all 4 down pipes heating up at the same rate, bad news took it for a 2 mile ride and it's started baulking intermittently at about 5k , so it's carbs off and a thorough clean time, at least it's nothing more serious than crud in the fuel system, time to fit inline filters!, thanks for your suggestions all, I haven't got the inclination to do it today so I'll take the Duke out tomorrow on the charity run, (reliable bikes those Ducati's 😄)
royhall:
Glad your Ducati is reliable, mine was a bag of spanners and it only had 1800 miles on it. I was glad to be rid of it.
MarkCR750:
Yes Roy it seems OK so far!, I think I've done about 1800 miles (haven't checked mileage recently) with no issues other than the clutch slave cylinder needing a new seal and the front fairing subframe cracking, but it's a 25 year old bike so you have to expect a few repairs required, but as for starting/running it's spot on, which ducati did you have?.
royhall:
It was a 750SS from 2000. Only had 1200 miles on it when it came to me sold it with 1813 the thing was horrible. Went a whole 35 miles on it in one go and damn near needed a crane to get me off the thing. In traffic all it wanted to do was pop back though the air box. Chopped it in for a brand new CB1300, what a good swap that was. Still own the 1300 nine years later. Ducati was a good buy though as Honda part exed it for way more than I paid for it.
Greebo:
--- Quote from: MarkCR750 on September 24, 2016, 02:29:28 PM ---Good news, after spraying half a 500ml tin of carb cleaner up the primary balance tube, and using a syringe to suck the carb cleaner back and forth it is now running on all 4, with all 4 down pipes heating up at the same rate, bad news took it for a 2 mile ride and it's started baulking intermittently at about 5k , so it's carbs off and a thorough clean time, at least it's nothing more serious than crud in the fuel system, time to fit inline filters!, thanks for your suggestions all, I haven't got the inclination to do it today so I'll take the Duke out tomorrow on the charity run, (reliable bikes those Ducati's 😄)
--- End quote ---
Hi Mark
I think I mentioned using carb cleaner in my private post to you ;)...
I have had the same issue with the PD carbs on mine & the carb cleaner did it for me...A inline filter a very good idea, I looked at putting one on mine but cant find the room or position, unless I lengthen the fuel pipe..
Regarding the Dukes, I think the newer models are now much improved...hopefully.. ;D
Good Luck
Greebo
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