When the choke is on and then you rev the bike, the idle has a tendancy to increase. In other words, the bike may be idling at around 1200, you rev it up to 2500 and then let off the throttle, but the bike only drops to 1800 (for example). Sometimes the idle will even start to increase on its own.
Any thoughts on what might be causing this? I was thinking it could be some sticky linkage, though everything seems fine. I pulled the carbs and went through them, though that did not seem to help.
Any thoughts would be greatly appreciated.
Thanks!
Dave
Sounds fairly normal to me.
Turning off the choke might help. :)
My bike works the same way. I think it is the normal function. Any other opinions?
MacDuff
Until the engine is fully warmed up, the results you can expect when mixing choke and throttle are anybody's guess. By the time the engine IS fully warmed up, the choke should be off.
Just something you have to live with on this bike. :dunno:
same here. from a cold start I use half choke, the bike will rev up and hang there, when it starts to increase in revs i start to gradually turn off the choke.
Cool, thanks for the info! This is actually a girl friend's bike, which we just picked up for her (she was riding an electric scooter before this). I ride an sv650 which is the only bike I have to compare, so some things seem different or unusual to me :)
Thanks again for the help, I am sure I will have more questions as I get this bike into proper working condition.
Dave
Quote from: hehehemannsame here. from a cold start I use half choke, the bike will rev up and hang there, when it starts to increase in revs i start to gradually turn off the choke.
Exactly. I use enough choke to keep it at idle at all times. I slowly turn it off until it is iddleing.
I've read that the GS's carbs don't really have a choke; they have an "enrichment circuit". One difference is that the effects of using the "enrichment circuit" and throttle at the same time are less predictable. So it's best to let the bike warm-up until it can idle with the choke completely off.
In my owners manual it says, and this is not a direct quote, Start the bike with choke fully open and no throttle, adjust choke so that engine runs at 3000 revs for 30 seconds then close down choke, bike should then idle at about 800-1000 revs and respond instantly to throttle, then move off.
If you can be bothered to sit and bugger about with the choke for 30 seconds this does actually work!