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How long to warm up

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Rogerborg
nimbA



Joined: 26 Oct 2010
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PostPosted: 12:16 - 19 Dec 2016    Post subject: Reply with quote
Copycat73 wrote:
you have a better "rule of thumb" ?..

Zero seconds summer, zero seconds winter.

Again, why are you leaving it to idle?

If it doesn't run smoothly until it's warmed a bit, fair enough. My first 125 was a bit tetchy, not helped by the choke being on the carb itself. Cars used to be the same, about 40 years ago.

Other than that, it's been start and go on every bike, then knock the choke off on the move.
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Copycat73
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Joined: 11 Jan 2013
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PostPosted: 12:34 - 19 Dec 2016    Post subject: Reply with quote
Rogerborg wrote:
Again, why are you leaving it to idle?


to allow it to warm up.. why would you ride a cold engine ?
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Aceslock
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Joined: 12 Dec 2014
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PostPosted: 12:48 - 19 Dec 2016    Post subject: Reply with quote
Best way to warm an engine up is to use it..... Leaving it idle does it no good as the oil doesnt get where it needs to quickly enough......
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rhys99
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Joined: 24 Feb 2015
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PostPosted: 14:08 - 19 Dec 2016    Post subject: Reply with quote
Aceslock wrote:
Best way to warm an engine up is to use it..... Leaving it idle does it no good as the oil doesnt get where it needs to quickly enough......
It's not all just about oil thought is it? Different metals expand at different rates so there is more wear when using an engine cold. I know lots of high performance motorsport engines won't event start cold because the tolerances are so tight and they have to use pre-heaters.
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Rogerborg
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Joined: 26 Oct 2010
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PostPosted: 14:13 - 19 Dec 2016    Post subject: Reply with quote
Copycat73 wrote:
why would you ride a cold engine ?

Why would you not?
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Monkeywrenche...
Nearly there...



Joined: 27 Mar 2015
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PostPosted: 14:20 - 19 Dec 2016    Post subject: Reply with quote
rhys99 wrote:
It's not all just about oil thought is it? Different metals expand at different rates so there is more wear when using an engine cold. I know lots of high performance motorsport engines won't event start cold because the tolerances are so tight and they have to use pre-heaters.


They also have operating lives measured in thousands or even hundreds of miles, for a road bike engine it's been designed to start and run.
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Aceslock
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Joined: 12 Dec 2014
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PostPosted: 15:03 - 19 Dec 2016    Post subject: Reply with quote
Monkeywrencher wrote:
rhys99 wrote:
It's not all just about oil thought is it? Different metals expand at different rates so there is more wear when using an engine cold. I know lots of high performance motorsport engines won't event start cold because the tolerances are so tight and they have to use pre-heaters.


They also have operating lives measured in thousands or even hundreds of miles, for a road bike engine it's been designed to start and run.


When you start a car up in the morning, do you leave it idle for 5 mins before you drive off??????

I agree there is more wear on an engine when its running cold as the oil viscosity is thicker, therefore it doesn't lubricate as well causing wear...... however the quickest way to warm it up is to rev it. If you sat outside your house revving your car/bike like a fuckin motorsports mechanic your neighbours wont be best pleased would they? Leaving it idle for 5 mins does more harm because it is running colder for longer
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bamt
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Joined: 15 Dec 2013
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PostPosted: 15:13 - 19 Dec 2016    Post subject: Reply with quote
If it's really cold out, I'll run a car for a few minutes before going - because I'll be scraping the ice off it. That's not a problem with the bike, as it lives in the garage, so fire it up and go. I take it gently for the first few minutes, until the engine and tyres are warming up and I'm sorted, comfy and warmed up into riding myself, but that's it.

My neighbours really wouldn't appreciate me starting the bike and leaving it running for several minutes every day at early o'clock.
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rhys99
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Joined: 24 Feb 2015
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PostPosted: 17:18 - 19 Dec 2016    Post subject: Reply with quote
Quote:
When you start a car up in the morning, do you leave it idle for 5 mins before you drive off??????

Yes, my car runs like shit when cold.
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owl
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Joined: 21 Oct 2016
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PostPosted: 17:22 - 19 Dec 2016    Post subject: Reply with quote
rhys99 wrote:
Quote:
When you start a car up in the morning, do you leave it idle for 5 mins before you drive off??????

Yes, my car runs like shit when cold.


diesel by any chance?
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rhys99
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PostPosted: 17:50 - 19 Dec 2016    Post subject: Reply with quote
vice wrote:

diesel by any chance?
Yup, 200 TDI
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Copycat73
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Joined: 11 Jan 2013
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PostPosted: 18:24 - 19 Dec 2016    Post subject: Reply with quote
Rogerborg wrote:
Copycat73 wrote:
why would you ride a cold engine ?

Why would you not?


because I get better throttle response from havin some warmth in the engine ....
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Rogerborg
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Joined: 26 Oct 2010
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PostPosted: 21:21 - 19 Dec 2016    Post subject: Reply with quote
Copycat73 wrote:
I get better throttle response from havin some warmth in the engine ....

I'm 5 minutes down the road. Race me. Razz
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Biking is 1/20th as dangerous as horse riding.
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M.C
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Joined: 29 Sep 2015
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PostPosted: 23:49 - 19 Dec 2016    Post subject: Reply with quote
sutty86 wrote:
Think I've sorted it, just had an inspection of the air box(could do with a new one) slight break in the panels were the screws are battered.
I just replaced the screws and taped around the edges.
Scooter ran really well no issues.
Crazy how a small amount of air can cause problems

Hmm, my 125 used to have the same issue, it would bog down when cold so you had to warm the bike up before setting off. I have to admit I never checked the air filter in the time I had it Embarassed
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Copycat73
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Joined: 11 Jan 2013
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PostPosted: 11:00 - 20 Dec 2016    Post subject: Reply with quote
Rogerborg wrote:
Copycat73 wrote:
I get better throttle response from havin some warmth in the engine ....

I'm 5 minutes down the road. Race me. Razz


any time any road .... perhaps over tan hill ..Girvin to Newton Stewart.. AppleCross to Shieldaig via the coast road.. Wink
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Monkeywrenche...
Nearly there...



Joined: 27 Mar 2015
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PostPosted: 11:32 - 20 Dec 2016    Post subject: Reply with quote
Copycat73 wrote:

any time any road .... perhaps over tan hill ..Girvin to Newton Stewart.. AppleCross to Shieldaig via the coast road.. Wink


Clearly an impartial adjudicator is required to set the ground rules and keep it fair

1 mile race 7am mid January, riders must observe usual start up procedures.
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bigdom86
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Joined: 17 Jul 2015
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PostPosted: 12:24 - 20 Dec 2016    Post subject: re Reply with quote
i usually start up after getting out of garage, put gloves, bag, helmet on etc and get going, so i would say 2mins which during summer will be off autochoke by then, in winter will still be on autochoke for another minute

when i park up i also leave the engine running for a minute or so as i get my gloves and helmet off.

i have always done a similar thing in the car, a minute or so starting up and shutting down letting it idle
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M.C
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Joined: 29 Sep 2015
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PostPosted: 14:55 - 20 Dec 2016    Post subject: Re: re Reply with quote
bigdom86 wrote:
i usually start up after getting out of garage, put gloves, bag, helmet on etc and get going, so i would say 2mins which during summer will be off autochoke by then, in winter will still be on autochoke for another minute

That was one of the joys of riding in the summer, no choke, fire up and go. At other times of year I had to guess the temperature, starting the bike with either partial or full choke, and if it was near freezing coax the bike into life with short precise bursts of throttle for about a minute.

Having gone black fuel injection I'll never go back Folded arms

Quote:
when i park up i also leave the engine running for a minute or so as i get my gloves and helmet off.

Gives the waiting thieves a chance I guess Smile
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bigdom86
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PostPosted: 15:37 - 20 Dec 2016    Post subject: Re: re Reply with quote
M.C wrote:
bigdom86 wrote:
i usually start up after getting out of garage, put gloves, bag, helmet on etc and get going, so i would say 2mins which during summer will be off autochoke by then, in winter will still be on autochoke for another minute

That was one of the joys of riding in the summer, no choke, fire up and go. At other times of year I had to guess the temperature, starting the bike with either partial or full choke, and if it was near freezing coax the bike into life with short precise bursts of throttle for about a minute.

Having gone black fuel injection I'll never go back Folded arms

Quote:
when i park up i also leave the engine running for a minute or so as i get my gloves and helmet off.

Gives the waiting thieves a chance I guess Smile


at 6ft2 and 125kg on a 125 I am not sure if a thief would want to try because i look like a gorilla on a monkey bike, and also 125.... 600 soon come Mr. Green
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