My bikes been having an issue with cold starts. Usually I start up using full choke, let it idle up to 3k then turn choke off, but lately it will not reach 3k on choke. Then when I ride away it will start bogging until I give it a handful of throttle,once it clears its throat it will run pretty much perfect.

Any Ideas?

 

Sounds like a fuel delivery issue. My first thought is the carbs have some crap in them and need cleaning. (usually the case) other less common problems could be: blockage in the in-tank filter, blockage in fuel line, petcock is loose causing vacuum leak....gotta be one of those, good luck.

 

How old are your plugs?

 

Not to old, I'd say they would have 5-6k kilometres on them at the most.

 

just my thot when it cuts out. pull the vacuum pipe from the carb. suck on it (shut it) if it starts you have a petcock problem with the vacuum system

 

This problem seems to be getting worse, today it kept stalling on me as I was trying to ride away and I had to go WOT up the street to keep it running (my neighbors must hate my lately) then after that it ran ok again.

Could it be a blocked idle jet?


Hilton thanks for the suggestion I will take a look at the petcock also, last time I opened it up the diaphragm looked ok, but I guess it is possible.

 

mine is doing the same thing. only we
hen i start it the first time of the day it kind of reminds me that it loads up cause once i get it out on the road and go to wot it clears up and runs good

 

So today I found the breather tube from the tank all coiled up, but not quite kinked. I have no idea how it got like that but after I fixed it the engine warmed up ok on choke and reached 3k.
Hopefully that’s all it was but I'll have to see how it runs during the week.