1st, did you keep a battery tender on the bike while it was not being ridden?
1500s need to be able to hold the battery's terminal voltage up as high as possible for really cold starts.
2nd, very recent discussions seem to agree that the best method to cold start the 1500 is to always use full 'choke', twist the throttle fully open and release letting the throttle close again.
Then hit the starter button. There needs to be a puff of fuel sprayed into the carbs to help it get going.
but, if the battery did not have a battery tender on it, it is just about impossible to get a 1500 going in 20-30 degree weather after a 3 week non-use period.
Rereading your post seems to indicate no battery tender was in use.
At this point, after you get the battery recharged, I would use the method I described above and try it again.
I would give the throttle one twist, hit the starter about 3-4 seconds and release. If engine don't fire, then I would repeat this a couple of times.
Just be aware that if you foul the plugs with fuel it will be very difficult to get it going again in cold weather.
1500s need to be able to hold the battery's terminal voltage up as high as possible for really cold starts.
2nd, very recent discussions seem to agree that the best method to cold start the 1500 is to always use full 'choke', twist the throttle fully open and release letting the throttle close again.
Then hit the starter button. There needs to be a puff of fuel sprayed into the carbs to help it get going.
but, if the battery did not have a battery tender on it, it is just about impossible to get a 1500 going in 20-30 degree weather after a 3 week non-use period.
Rereading your post seems to indicate no battery tender was in use.
At this point, after you get the battery recharged, I would use the method I described above and try it again.
I would give the throttle one twist, hit the starter about 3-4 seconds and release. If engine don't fire, then I would repeat this a couple of times.
Just be aware that if you foul the plugs with fuel it will be very difficult to get it going again in cold weather.