You are reading a single comment by @skinny and its replies.
Click here to read the full conversation.
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
skinny
If you search the FCR you’ll find a lot of posts about the bogging and other finicky issues with it.
To be honest, look up how to clean a carb, and you may have ‘fun’ trying.
Alternatively before you do any tear-down, three or more of the larger (125ml?) cans of Liqui Moly 4T Additive. Get below a half-tank and put two or three in so it’s very concentrated and then idle the bike for a while to clear the float and get it running through the carb.
Then go ride the bike for a half hour somewhat spirited. After running for a few litres, fill up and put the final can in and see how it goes for the next couple rides.
This is a tried and tested ghetto fix before tearing into a carb. It has worked well for a lot of gummed up carbs at my local mechanics. I did it on two or three bikes of my own (XJ600, CBR600 even the Blackbird’s FI) with great success. On the Blackbird the moment I felt a hesitation it fixed the problem, and it saved me a carb clean on the XJ and CBR.