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My wife has a 2017 900. We notice that every time she starts the bike, it has a throttle surge/reva high fir a couple seconds and then drops to a nice idle. Anyone else have yhis happen? Is it pretty commin wiyh this bike?
 

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Normal operation. The computer moves the throttle plate when it starts so it won't stall.
 

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Hi @Twitchrope,

I've noticed that the surge happens more often and for a longer duration when the battery is not fully charged -or can't hold the charge between the rides (ageing battery). As I recall, when I followed this phenomenon on my Vulcan 900, a battery below 12.5V (resting/no load) always results in a surge and high idle. I interpreted that as a ECU setting from factory to both keep the engine running and also 'fast charge' the battery till nominal voltage is detected...
 
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