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Hello,

What's this entry in the manual about starting that say that a cold engine needs to be warmed up first (before use)... ?
That's the first time that I read something similar in a motor manual.
(contrary to slow driving to warm the engine up)
 

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Hello,

What's this entry in the manual about starting that say that a cold engine needs to be warmed up first (before use)... ?
That's the first time that I read something similar in a motor manual.
(contrary to slow driving to warm the engine up)
Personally I wouldnt over think this...for all my bikes, ive started them and left idling whilst sticking on my helmet and gloves then just ride...
 

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Personally I wouldnt over think this...for all my bikes, ive started them and left idling whilst sticking on my helmet and gloves then just ride...
This is what I do, check camera, put on gloves check front door.
Manual does actually say 3 mins but I wait for the first bar of temp to show before setting off and I don't give it any serious beans till I have 3 bars.
 

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3 mins makes perfect sense, just enough time to get oil around the engine before setting off. I don't know anyone who starts their bike last thing before setting off, everyone I know lets their bikes idle for a few mins while they finish getting ready!
 

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I agree w ackack and Martin. its always been the same as with cars and motorcycles. Some show temperature in degrees and some in bars. but u always have to warm them up before u can drive them properly.
and let me tell u my last bike Cbr 954rr needed much longer to be on temp as now Suzi( shes in no time on working temp.)
 

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Looking forward to letting a bike warm up, currently have a 1996 Bandit 1200 Which is probably the loudest bike in the area and have to start it and ride straight away so as not to upset the neighbours ?
 

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Rod bacon that was great .. the life of any engine depends on proper warm up .just like a Human would do at the gym before pushing the limits. You warm up for circulation and you strech not to dislocate anything. Engines warm for circulation and stretch out to proper clearances
 

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I picked up my bike yesterday at the dealer and only let it sit for about 30 seconds after its 6 month nap, went to take off and it died. Even the extra gas when letting the clutch out couldn't save it. First time I stalled this bike.

I'll be letting it warm up from now on, lol. I was just too eager to get her going.
 

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car experts tell you to start car up and drive ...if its freezing just go build up speed slow....i can get going down the road at speeds with very low rpm....air cooled bikes same thing......water cooled bike takes a bit longer to warn up...but i dont think id have a problem pulling away cold on the s...with the high compression better to warn a bit
 

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car experts tell you to start car up and drive ...if its freezing just go build up speed slow....i can get going down the road at speeds with very low rpm....air cooled bikes same thing......water cooled bike takes a bit longer to warn up...but i dont think id have a problem pulling away cold on the s...with the high compression better to warn a bit
"Experts". Yeah...

There's a reason why you bring an engine to operating temperature before you stress it.
 

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"Experts". Yeah...

There's a reason why you bring an engine to operating temperature before you stress it.
It's 4 play for your engine and like your wife or girlfriend , in the long run they will love you for it and reward you with better performance ha ha . A little warm up goes a long way .
 

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car experts tell you to start car up and drive ...if its freezing just go build up speed slow....i can get going down the road at speeds with very low rpm....air cooled bikes same thing......water cooled bike takes a bit longer to warn up...but i dont think id have a problem pulling away cold on the s...with the high compression better to warn a bit
Cars don't share the gearbox oil with the engine, though.

And, I would contradict what you said about air cooled vs. water cooled. In my experience, water cooled engines warm up much faster. Makes sense because the thermostat is closed which keeps most of the heat in the engine, compared to air cooled which is cooling all the time no matter what.
 

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Suzuki mentions this in two places in the owner's manual:

"ALLOW THE ENGINE OIL TO
CIRCULATE BEFORE RIDING
Allow sufficient idling time after warm
or cold engine start up before applying
load or revving the engine. This
allows time for the lubricating oil to
reach all critical engine components."


"After the engine starts, let the
engine run until the engine sufficiently
warms up."

So...Suzuki is very clear about how long to idle before riding away: a "sufficient" amount of time. Lol. I do usually let mine idle for a minute or two before riding, then ride gently until it's completely up to normal operating temperature. With carbs, I try to let it idle until it runs fine with no choke. I cringe when I see someone start up a cold bike and right away rev the snot out of it. (Have seen this at a dealer, too.) It's kind of funny, most folks here seem to be in the "idle to warm up" camp. On the V-strom forum there are several folks who go catatonic if you mention warming up a FI engine by idling.

Also, it apparently doesn't take long for oil to be sprayed all through an engine. I once started my DL1000 with a loose oil filler cap. About a second after starting and gently revving, the cap blew off and showered the entire right side of my garage (including contents and ceiling) with a cloud of oil spray that was a spectacle to behold. It took me less than three seconds to figure out what was going on and shut it off - quite a bit longer to clean up the mess. I may have also practiced some adult language.
 

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Start your bike up then put your gear on while it warms up, I never take off until at least 1 bar is illuminated, it only takes a minute or 2 then I'll take it easy taking off as the tyres are cold as well.
 

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Cars don't share the gearbox oil with the engine, though.

And, I would contradict what you said about air cooled vs. water cooled. In my experience, water cooled engines warm up much faster. Makes sense because the thermostat is closed which keeps most of the heat in the engine, compared to air cooled which is cooling all the time no matter what.
water cooled motor,,when started cold,,,water say 20 deg outside temp 20 deg...so motor it trying to heat up also heating up water..water slows the heat up time......on the other matter that you are confused about..a water cool motor can idle all day long....air cooled will burn up if doing the same....it has to be moving to cool NO MATTER WHAT,no water in motor warns up faster....so now i contradict what you say......and about a car not sharing same gearbox as bike ... what does that have to do anything...winter day warm motor in a car ,everything else it still ice cold trany.. wheel bearings ect ect all need to be warmed up also...you do that by driving warning everything at same time........now your learning something.......i have a question for ya......does a pan with no water heat up faster then a pan with water in it.......boy o boy
 

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water cooled motor,,when started cold,,,water say 20 deg outside temp 20 deg...so motor it trying to heat up also heating up water..water slows the heat up time......

no water in motor warns up faster....so now i contradict what you say......

i have a question for ya......does a pan with no water heat up faster then a pan with water in it.......boy o boy
You're over-simplifying a complex subject.

The time it takes for an engine to reach operating temp is a function of:
1) its thermal mass
2) the amount of heat that's being transferred into it
3) the amount of heat that it is transferring to its surroundings

For point 1. Air cooled engines have more metal mass. All of those fins to disperse heat to the air. Yes, water cooled engines have water that adds to the thermal mass, but with the thermostat closed, you only should consider the mass of the water inside the engine.
For point 2. Call it even between air cooled and water cooled.
For point 3. As I said before, air cooled engines are transferring heat to the air the whole time. Obviously that's a function of metal temperature and airflow. But in any case, the water cooled engine has hardly any heat transfer at all until the thermostat opens up. More heat stays in the engine to heat it up faster.

on the other matter that you are confused about..a water cool motor can idle all day long....air cooled will burn up if doing the same....it has to be moving to cool NO MATTER WHAT,
I never said anything about that.

and about a car not sharing same gearbox as bike ... what does that have to do anything...winter day warm motor in a car ,everything else it still ice cold trany.. wheel bearings ect ect all need to be warmed up also...you do that by driving warning everything at same time........now your learning something.......
It has to do with the original question from this topic. Why would anyone warm up their engine before riding it? One reason is that it warms up the gearbox oil (well, oil in general).
 

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You're over-simplifying a complex subject.

The time it takes for an engine to reach operating temp is a function of:
1) its thermal mass
2) the amount of heat that's being transferred into it
3) the amount of heat that it is transferring to its surroundings

For point 1. Air cooled engines have more metal mass. All of those fins to disperse heat to the air. Yes, water cooled engines have water that adds to the thermal mass, but with the thermostat closed, you only should consider the mass of the water inside the engine.
For point 2. Call it even between air cooled and water cooled.
For point 3. As I said before, air cooled engines are transferring heat to the air the whole time. Obviously that's a function of metal temperature and airflow. But in any case, the water cooled engine has hardly any heat transfer at all until the thermostat opens up. More heat stays in the engine to heat it up faster.



I never said anything about that.



It has to do with the original question from this topic. Why would anyone warm up their engine before riding it? One reason is that it warms up the gearbox oil (well, oil in general).
after reading that i forgot what where talking about about...topic.why would anyone warm up there engine before riding,,,well i warm up my motorcycle while riding, probably like most all do in warm weather,,,,,cold axs weather atleast 5 min idle on first start like most all do....is there anyone here who just jumps on bike starts an goes,,,probably not........i warm it up by moving down the road rpm at 2 ,,,,,,in 3rd 4th 5th gear slow smooth ....rather be moving slow and smooth then idling for 5 mim......even after idling for 5 min you still going slow and smooth for next couple miles.........So theres many many ways to warm up................
 

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Some of you are drilling into this too deep I think.

When the engine starts, the lube for the piston is the residual oil film on cylinder wall.
The oil pump is pretty instantaneously pumping oil up under the skirts of the piston.
The temperature is now hundreds to thousands of degree's from the explosion of the mixture in the compression zone.
So why ANY warm up? So the oils can reach the OH valve train, the highest part of the engine, meaning the tappet bucket & cam surfaces.
Basing the time interval wait on the ambient temp and the resultant viscosity of the lube oil.

My wait time is about 15 seconds (while checking the mirrors for pedestrians, cars).
As the air is mostly above 15 degree C in my garaged space, 11 months of the year, that's it for me.

Rob.
 
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