And the number of cylinders you haveOn none FI bikes, usually a few minutes with the choke on,gradually reducing the choke until it's at operating temperature. Maybe 3-4 minutes.
With a FI bike, the system will adjust so warm up's are shorter than with a bike with carbs, maybe 2 minutes or less.
All of this may vary due to oil thickness,outside air temperatue and grade of gas used.
I think of the bike the same as a car. When running smooth enough so that it does not cut off. I go. On my cars I have noticed how long it takes (distance) for the temp. to get above the cold mark. I figure the bike is about the same. So by the time I am ready to get on to the roads where speeds are 55 and above I feel that the bike is up to a good operating temp. Long Idles are a waste of gas. On alot of equipment that does not travel alot they have hour meters not mileage meters. So time running equals wear and tear.How long do you let your engine run to warm up before driving? I've heard "a few minutes to let the oil spread throughout the engine" and also "as soon as it idles smoothly w/o the choke, it's ready."
Just make sure you're running the proper grade oil. I used to regularly commute in -12C (10F) as long as the roads were clear. If you're running a 20W50 oil you should drop down to a 10W40. We run our quads all winter here, one's my plow, and I run 0W40 oil for the winter, then switch back to a 10W40 for the summer. Just check your manual and it will tell you what oil to run for your expected temperature range. I think 10W40 is good down to -10C. I'd also run a quality full synthetic, the full synthetics have a much lower pour point which just means they flow better at low temps, so they get circulating faster than a regular dino oil.For a motorcycle? Not really. When you spend extended periods of time below about 0F, you should probably have an engine block heater and leave that plugged in. The people up north would have more experience with how to handle extended periods of very cold temps.
They are designed to be run at a given operating temp...and by letting it idle, you keep it operating well below that for much MUCH longer. You leave it in the cold where it has to DUMP fuel in to keep it running...washing the cylinder walls with gasoline, and increasing wear.
Doesn't matter whether it is a car or a bike, the proper way to warm it up is to allow it to idle only long enough to ensure it will not die while in gear...then drive/ride gingerly until the engine reaches its operating temperature. By putting a light load on it, you raise the temp faster without increasing wear (as you would by racing the engine...which is the other extreme). With an automobile, this method also allows your transmission and differential fluids to come up to temp.
Bingo.I let mine warm up while I put my gear on then take it easy for the first several miles. Idling is never good and should be kept to a minimum, nor is revving the engine without it being under load.