Starting the right way?

[Feasty]

When I start my bike these days in the colder weather, I always put the choke fully on then without any revs start the bike. It always kicks straight into life then stutters and dies. I do this a 2nd time and it starts straight away before ilding away quite high and happily.
About 10-20secs later I put the choke to half, leave it another 20-40secs then turn the choke off and the bike will idle no prob's.

I've tried doing this again as above but only starting the bike with half choke, it does the same as above but with slightly less enthusiasm.
So why does it kick into life then die? Am I overfilling the carb's somehow?

The bike doesn't start at all if I try starting with no choke, however I haven't tried revving it whilst starting it this way as I've heard you shouldn't really rev the engine straight away from cold. Apart from this it runs very well and I don't have any other issues at all.
If I start the bike with no choke when it's warm it'll kick into life and idle without a hitch, so it must be something to do with the cold weather and the choke I would have thought?
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Previous: Aprilia Habana Retro 50cc (beauty), Yamaha SR125 (fell apart), Honda XR125 (nippy little commuter), Honda SLR650 (Geewhizz), Yamaha Diversion 900S (Smoooooth) written off courtesy of a stupid escaped horse.
(7 year gap), BMW F650 (Relaxing ride). Aprilia Caponord ETV1000 (Big and bold). Yamaha FZS600 (got me in trouble too quick!).
Current: Yamaha TDM 900 (Comfy, light but big, power when needed).

[Damon]

[Alexio]

My bike in this cold (which is left outside) does the same thing. I have to put on the choke and then rev it higher than I would like before it'll sit anywhere near idle revs without dying. My bike warms up very fast though and I doubt my engine really takes much damage, it's a CG after all.
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will never give up his CG. I look at my fuel gauge more as a progress bar than a fuel gauge.
G: With my GSXR I do often effectively use it as a scooter with a clutch in town.
ms51ves3: why does it need 500 miles? Are you teaching it how to be a piston?

[finpos]

It's because all the fuel vapour is condensing on your cold engine.

When you first go to start it, it'll turn over a few times without firing, pulling fuel through into the engine that sits there evaporating and making the mixture nice and rich, which is exactly what it wants to start. Once that's burnt, though, the new fuel being sucked into the engine is all sticking to the sides, making the mixture go massively lean, so the engine cuts out.

After a couple of starts it gets some heat in it and everything becomes pretty saturated with fuel so off it goes.

f.

[rob_scott92]

Hahaa! Just answered my question too The Gs has been a bitch to start in this weather (will burst into life then cut straight out) And now i know why! It is really annoying with only a kickstart though, now my leg hurts

Cheers finpos

[Artur]

[Feasty]

Blimey, I didn't realise this was such an issue! If there's that many of us having the same thing happening every morning during the cold weather I'm guessing there isn't really a lot that can be done about it other than getting used to starting the bike twice every morning...
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Previous: Aprilia Habana Retro 50cc (beauty), Yamaha SR125 (fell apart), Honda XR125 (nippy little commuter), Honda SLR650 (Geewhizz), Yamaha Diversion 900S (Smoooooth) written off courtesy of a stupid escaped horse.
(7 year gap), BMW F650 (Relaxing ride). Aprilia Caponord ETV1000 (Big and bold). Yamaha FZS600 (got me in trouble too quick!).
Current: Yamaha TDM 900 (Comfy, light but big, power when needed).

[Alexio]

[Feasty]

[Alexio]

[Feasty]