Hi i have a problem... my bike runs fine when i first start riding it after short warm up, but when it needs to warm up it becomes tricky. If i put the choke on, and give it some gas it dies, why does that happen?
Even when i have warmed up the bike it will die if i (for test purpose) leave the choke on, while riding. This has never happend before!

I only use the choke while it is warming up... before I ride it. Usually I put on my gear, check the air pressure in the tires... etc... and this should give it enough time to warm it up. When it's good and warmed up... i turn off the choke and ride away.

How much choke? I have something similar on my bike, if I put the choke about half-way it will die instantly during a cold-start. Any LESS or any MORE, it starts and idles as should.

Also what do you mean by "giving it gas" - are you just slightly giving it some throttle or doing a quick jerk? (No funny comments please)

perhaps the valves need adjusting.

Quote from: GS500F2004 on November 03, 2013, 11:29:48 PM
How much choke? I have something similar on my bike, if I put the choke about half-way it will die instantly during a cold-start. Any LESS or any MORE, it starts and idles as should.

Also what do you mean by "giving it gas" - are you just slightly giving it some throttle or doing a quick jerk? (No funny comments please)

Ummm. ... Sigh ... Missed opportunity! 

If at startup idle with choke on and giving gas kills it, you are too rich at the carbs and need to adjust your mixture screw. You are not getting enough air and thus killing the engine.

Radodrill - No, a tight valve will run better if you give gas right after startup.

Weedahoe - Maybe Its possible yes in theory, however there is a slightly more likely situation, because we dont overshoot 2-3X on the pilots ... the more likely situation is below.

Graugaard - You could have a partially blocked pilot. Its flowing @ capacity through the choke circuit, remember choke circuit is fed via the pilot. Opening the throttle also requires pilots to flow straight up into the carb throat to get with the air going through. A partly clogged pilot will feed the choke cos there is more vacuum in that circuit. You opwn the butterfly and the pilot needs to be @ 100% if it has to keep it flowing.

Cool.
Buddha.