Engine warm up
Elite HDF Member
Joined: Jan 2008
Posts: 4,351
Likes: 461
From: Illinois
My opinion is just that, my opinion, not necesarrily a fact. I believe warm up is only crucial on any internal combustion motor if you are wanting to rev high and work the motor hard. The motor will warm up just as safe at moderate rpms while rolling as it will sitting idle.
I worry more about the bike overheating while idling than I do rolling out of the drive when it isn't fully warmed up yet.
If you are planning on opening up the throttle and hitting max rpms as soon as you dump the clutch, warm up should be a consideration. If you are going to roll out and ride moderate, nothing to worry about.
Dennis
I worry more about the bike overheating while idling than I do rolling out of the drive when it isn't fully warmed up yet.
If you are planning on opening up the throttle and hitting max rpms as soon as you dump the clutch, warm up should be a consideration. If you are going to roll out and ride moderate, nothing to worry about.
Dennis
Road Warrior
Joined: Nov 2008
Posts: 1,296
Likes: 3
From: Cheltenham, UK
Generally im agreement with much of what has already been said, but would add the following:
A key reason for allowing for a "warm up" is to ensure the hydrodynamic bearings are fully functional. In simple terms, a film of oil is pumped between 2 moving surfaces where there is a very small gap. This pressure ensures no metal / metal contact. Most typically this is used on the big end bearings between the con rod and crankshaft. When the bike is not running this oil drains out and metal / metal contact will occur. As the oil warms up it's viscosity changes and the hydrodynamic bearing becomes more effective. The bottom line - never over rev a cold engine to speed up the warming up process, that is completely counter productive.
A key reason for allowing for a "warm up" is to ensure the hydrodynamic bearings are fully functional. In simple terms, a film of oil is pumped between 2 moving surfaces where there is a very small gap. This pressure ensures no metal / metal contact. Most typically this is used on the big end bearings between the con rod and crankshaft. When the bike is not running this oil drains out and metal / metal contact will occur. As the oil warms up it's viscosity changes and the hydrodynamic bearing becomes more effective. The bottom line - never over rev a cold engine to speed up the warming up process, that is completely counter productive.
Road Master
Joined: Jul 2008
Posts: 795
Likes: 1
Some of the guys said to refer to your owners manual. I did and this is exactly word for word...Caution...The engine should be allowed to run slowly for 15-30 seconds. This will allow the engine to warm up and let oil reach all surfaces needing lubrication. Failure to comply can result in engine damage. Starting the Engine in General...
According to the manual 15-30 sec. is not very long. I know I have always allowed my engine to warm up longer than 30 sec everytime I have started the engine.
As someone on the forum said one time, " Quit worrying and enjoy your new ride "
Hope this helps, Ride Safe someone cares about you!!
According to the manual 15-30 sec. is not very long. I know I have always allowed my engine to warm up longer than 30 sec everytime I have started the engine.
As someone on the forum said one time, " Quit worrying and enjoy your new ride "
Hope this helps, Ride Safe someone cares about you!!
Extreme HDF Member
Joined: Sep 2005
Posts: 11,615
Likes: 50
From: Baton Rouge, LA
My opinion is just that, my opinion, not necesarrily a fact. I believe warm up is only crucial on any internal combustion motor if you are wanting to rev high and work the motor hard. The motor will warm up just as safe at moderate rpms while rolling as it will sitting idle.
I worry more about the bike overheating while idling than I do rolling out of the drive when it isn't fully warmed up yet.
If you are planning on opening up the throttle and hitting max rpms as soon as you dump the clutch, warm up should be a consideration. If you are going to roll out and ride moderate, nothing to worry about.
I worry more about the bike overheating while idling than I do rolling out of the drive when it isn't fully warmed up yet.
If you are planning on opening up the throttle and hitting max rpms as soon as you dump the clutch, warm up should be a consideration. If you are going to roll out and ride moderate, nothing to worry about.
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