Crash summary - advice needed

[dyzio]

Current status.
Bike fires up every time, still on 1 cylinder.
Last start was with a new plug, didn't help, but it looks like it stopped smoking

Got some ideas what to do next (thanks Chris!), will try that in a day or two.
Have to give my ribs their well deserved rest.


hmm...
how crazy/stupid would it be to put a wee bit of petrol into the cylinder?

[yorkie_chris]

Find out whether the cylinder is getting it's own fuel first.

[dyzio]

Fuel on spark plug, or is there some other way?

[yorkie_chris]

Just sniffing the plug really. you could try add a small amount directly into the front carb throat.

[dyzio]

I've tried canking it, then refit plug, start it and over and over again.
Every time the same story.
What I started thinking about... The oil got to the airbox through the carbs, right? They haven't been cleaned, so can they be responsible for the cylinder not working?

[yorkie_chris]

Perhaps plugged air jets. Try put a little fuel straight into the carb mouth ... if this lets it fire then you know it's a fuelling problem.

[dyzio]

That can be done "through" the airbox?

[yorkie_chris]

Yes straight down the carb throat. Just a couple of drops will do, or do it with the airbox entirely removed

[dyzio]

:/ Tried that, resulted in a bang from the exhaust, and that back to normal.

[yorkie_chris]

When you say back to normal do you mean back to running on 1 cylinder only?

I'd say that means the front pot is getting no fuel. Have you got compressed air available?

Try a burst of carb cleaner down into the air jets with it running, might clear a drop of oil that's blocking them.