Sherco ST 125 revs high on start

[exman]

Whenever started with choke it goes to high revs, so I have to kill the choke after 2-3 secs. Usually it kills the engine, so I have to kick it again (with the choke), kill the choke as it starts, and the engine continue to idle normally (probably warmed up).

One more thing: mine  is Sherco 2012 and it has the switch for two modes of throtlle response, but honestly I can't see the difference. Is there any proper way to check if it works at all?  

[misscrabstick]

If the bike is running fine in all other respects and it has always behaved this way on a cold start only another 125 owner can give you a answer, I find my 300 Evo revs high initially after a choke start but then calms down to a fast idle, i generally shut the choke off after around 20 seconds or so, like your Sherco my Evo has no perceptible difference between soft and power on the mode switch, I suspect it is only a thing at high revs, being a novice i don't really use the top of the rev range.

[stpauls]

I have a 2014 Sherco 125 rear tanker.  Mine always revs high when using the choke.  Push the choke off after a couple of seconds.  If it starts to die then quickly pull the choke on for another couple of seconds.  Mine has done it from new.  I don't think it is anything to worry about. 

The power switch.  With a SLOW throttle I didn't notice any difference.  However when I refitted a QUICK throttle, it made the engine pick up faster to the higher revs (where the power is on a 125).

Edited February 4, 2018 by stpauls

[exman]

The answers are relaxing and what's more important, are IDENTICAL. It's wintertime but the livin' is easy again. Tks guys.