Still in the process, cleaning carbs at the minuteHi. A bit of thread hijacking here... I wonder how or if this issue was fixed? O.P. hasn't followed up here, so I'm curious how this went down since I maybe have a similar issue with my 1998 BB. It's not that extreme in the fuel consumption, but still not very good, and smells a bit too much of gas from the right exhaust while riding. I have'nt been able to check the sparkplugs yet.
Thinking of hooking up a clear fuel pipe to the drain on the carbs as beestoys said to check if the floater valve is stuck. Since this is easyer than getting the sparkplugs out... Is there anything more to think of with this kind of issue?
(There is not any fuel in my vacuum tube to the petcock.)
Edit: I thought that I should smell the motor oil again today, I've done that a while ago and it was not smelly. So, I opened the oil fill cap and smelled it. Of course it was smelling of petrol/gas! <img src="https://www.cbrxx.com/images/smilies/crap.gif" border="0" alt="" title="Crap" class="inlineimg" />
So, to clear out my different things to check and in what order:
1. Check floater valves as beestoys advised
2. Check sparkplugs condition and function
3. Check vacuum valve in the petcock
4. Should I check thermostat or is that not needed on a carbed bike since it has manual choke?