S4RS 2007 now hard to start

[dbran1949]

The bike hasn't had a lot of use in the last few years as I have been traveling for work. I even had it shipped up to Portland OR for a while thinking i would be able to get some riding in but it rains a lot there

Anyway the bike always used to start with just a touch of the starter button, now it will go through a complete cycle of trying to start until the ECU times out, then starts on the second try. Hot - Cold same problem

Battery is always on a trickle charger, recently changed the plugs but that did not help

I am afraid i have gunked up the injectors from the lack of use -

Is there anything i can do to trouble shoot?
thanks
Dan

[Howie]

Since the bike has been sitting a while i would suspect either a fuel quality issue, battery or both.

Battery is easy, fully charge it and have it load tested.  Fuel?  Empty tank, while you are in there, new filter.  A new set of spark plugs might help too.  It may take a tank or two to see results.  Some Techron or Seafoam is a good idea too, but no more than recommended.  Still not good?  Post back and we will talk diagnostics.

[itsamonster]

Mine never starts first time from cold when it's been stood even for just a week. It doesn't time out on the starting cycle, but cranks over a few times and sort of wheezes and gives up. Then the rest of the day it's good as gold.
I changed the starter sprag ( one way clutch)about 4000 mles ago because it wouldn't engage and start.
Whats the mileage on yours? Mines on 16000 miles.