Yes I have clean gas in the bike.
I replaced the fuel filter with a shiny new one, I also wiped out the tank.
There are no obstructions in the fuel line.
It runs fine for a few minutes to a half hour then throttle response stops, the choke doesn't work and it just sputters out.
Any ideas? I'm worried I may have to clean the carbs.
Sounds like it could be a failing fuel pump. Ca Cycleworks (board sponser) has em for cheap.
Also make sure the tank is venting properly. If you open the cap and the bike runs well you have a venting problem
Thanks, I'll check those out and get back.
Quote from: Ducaholic on February 02, 2009, 08:11:56 PM
Sounds like it could be a failing fuel pump. Ca Cycleworks (board sponser) has em for cheap.
The pump on the early SS is an electric unit mounted in the tank. Not like a monster at all.
There's a chance that the little filter inside the fuel line fitting at the carbs is clogged.
It's a *tiny* plastic 'sock' that's pushed into the end of the fitting.
All of those are valid suggestions, but I would add that the early carburated SS bikes used a low pressure fuel pump so it's not as easy to find in the aftermarket as most of the fuel pumps are high pressure to use with fuel injection.
Also, have you checked your fuel pump relay? It could be getting hot and then not holding it's contacts in (therefore not powering up the pump after a varying amount of time.)