cold starting problem

[gregp3]

2014 R1200R used to start immediately without issue. Now when bike sits overnight or for a coupe of days It won't start unless I shoot some starting fluid in intake. It then runs roughly for a few seconds then smooths out and runs perfect! It will then start immediately after warmed up! Is their a cold start enrichment that quit working?

 

[52184]

2014 R1200R used to start immediately without issue. Now when bike sits overnight or for a coupe of days It won't start unless I shoot some starting fluid in intake. It then runs roughly for a few seconds then smooths out and runs perfect! It will then start immediately after warmed up! Is their a cold start enrichment that quit working?

How long in time and miles since the last full service, including a valve clearance check, sparkplug replacement, etc? How old is the fuel in the bike, and has the bike had periodic applications of an injection cleaner like SeaFoam, Techron, or BG-44?

Best,
DeVern

 

[drneo66]

Besides what DeVern expertly stated, double check that you have a little throttle play too - these seem a bit sensitive to even a slightly open throttle.