Do you warm your bike up before heading off?

[cowboyz]

Pull in the clutch when you're rolling around doing 3000 RPM and see what happens.

completely lost me here. Whats your point?


Interesting that the concenous (sp?) is that cold oil is harder to pump round than hot oil. This statement on its own is true. however 10W40 has a low temp of -23 deg. This means that even on a cold morning (lets say 3 deg) the oil is 26 deg hotter than its lowest effective tempature so one would think the pump would have no trouble at all pumping it around the engine.

Load: All motors work better under load. It is not good to rev any motor, hot or cold in neutral. Without the load on the motor you can do serious harm to the internals. Leaving a bike with choke on revving in neutral can only be a negative thing.

[Quartermile]

I make sure my SJ50 scooter warms up for a few minutes at the start of the day. Get my helmet out, start it up, and then sort my shit out for a fewmins (helmet on, gate open, gloves on, shoes tied...) Once I get out the gate and onto the road I take it easy for the next k or so. I find that if I don't warm it up and be aggressive with the power, the engine jerks as I throttle up.

I've got used to warming up engines from flying though

lololololololol, you warm up a scooter

[BOGAR]

Like alto of people responding here i let my bike warm up first. it isn't hard to do as i roll it out of the garage start it up and then proceed to close and lock the garage and put my jacket, skid lid and gloves on. i do a quick check of the house, roll down to the gate to open and shut once through and by then the bike is usually nice and warm. i noticed a BIG difference in response with the bike when i tried running it cold , felt like it had lost a lot of horses.

[Renegade]

i voted must warm up, only because i care about my bike, if it was my old bomb of a ute i just start it hook reverse and thrash it cos i couldnt give a shit about it, but i think everyone knows the reason to warm engins up 1st.

[cowboyz]

Are you suggesting I dont care about my bike?
The issue is not if you warm your bike up or not but rather how you warm your bike up. Weather it is warming up sitting on the sidestand or warming up while running up the road.

[Naki Rat]

Between living rural and having the 100kmh zone virtually outside the gateway, and the words of me dear old Dad imprinted on my brain ("90% of the wear happens in the first 6 miles"), the Sprint is left idling while I kit up with helmet, etc.

Works for me.

[MotoKuzzi]

Get gear on, back outa the garage, roll it to the street, roll it down hill in neutral hit the start button as Im rolling, drop it into second gear and short shift until I have a few K's up then ride normally. Don't see anything different from a static warm up. In fact with cars they used to recommend doing just that, rather than prolonged stationary idle with choke on washing the bore.

[sinfull]

Between living rural and having the 100kmh zone virtually outside the gateway, and the words of me dear old Dad imprinted on my brain ("90% of the wear happens in the first 6 miles"), the Sprint is left idling while I kit up with helmet, etc.

Works for me.

Same position a Naki Rat ! with the 160 k area just outside the gate i have no choice ! Do however take off in the deisel without warming it (knowing full well the oil is prob f....d by now too but like its a car !
But i do see ya point here Cowboyz, if you can ride away at low revz the oils should be well spread throughout the engine within seconds (on a modern machine) so it shouldn't be a problem

[CookMySock]

Are you suggesting I dont care about my bike?

hez saying the same thing as the other warmer-uppers - "I FEEL better if I do this, because it FEELS like I am doing something for it, and I LIKE it."

The issue is not if you warm your bike up or not but rather how you warm your bike up. Weather it is warming up sitting on the sidestand or warming up while running up the road.

Yup, the non-sit-arounder warmer-uppers agree - it is possible, even desireable, to warm up your bike on the move, and no thats not what we call "caning it".

Hey, its about mince, and how you like your monkey spanked..

DB

[Swoop]

Short warm-up.

[banditrider]

F1 warm-up: http://www.youtube.com/watch?v=gSHToyGIxWE

[motorbyclist]

I warm up while i get my gear on, chuck cat our the door etc etc. give it maybe 5 minutes on the really cold mornings but nothing more

several reasons:

i live on a windy road, and nothing starts my day better than a good blat on a sunny morning

carburetor means it doesn't run too well for the first 90 seconds (my dirtbike wont even take off or rev without choke on for several minutes)

i've seen what happens when you start a bike and go blatting away immediately - stuff heats up at different rates and whaddaya know you've cracked the piston to your yfz450 quad and you've barely made it to the end of your driveway

oil needs to get pumped to places it's needed, and should be appropriately warmed to get to the right viscosity

why is viscosity important? all the load/speed/friction calculations the engineers make for your motors, particuarly the journal/bushing type bearings have viscosity as a major factor - these can be found everywhere from camshafts to gearboxes to both the piston and crank ends of the conrod (depends on the motor, obviously).
without going into theory on hydrodynamic bearings - too thick an oil means you're outside operating parameters, doing more damage to you bike in the first 5 minutes than you will over the course of the day
(too thin an oil has similar efect, which is why it pays to replace it every now and again)



would you run your bike on vege oil from the kitchen?
would you run with oil not properly coating the engine parts?
no?
well seeing as you have to stop to put on jacket/helmet etc, why not start the bike first and let it idle while you kit up - that way there's no need to nana it and no harm done

[motorbyclist]

F1 warm-up: http://www.youtube.com/watch?v=gSHToyGIxWE

i hear those are so finely toleranced that they have to keep warm water pumping through them or they'll seize up

Get gear on, back outa the garage, roll it to the street, roll it down hill in neutral hit the start button as Im rolling, drop it into second gear and short shift until I have a few K's up then ride normally. Don't see anything different from a static warm up. In fact with cars they used to recommend doing just that, rather than prolonged stationary idle with choke on washing the bore.

why not start bike first, then put gear on etc?

[dipshit]

F1 warm-up: http://www.youtube.com/watch?v=gSHToyGIxWE

Oh dear, another wank session for the VIPs

[Shadows]

Engine oil is distributed more effectively throughout the engine when it is under a little pressure. This is not acheived with stationary idling but with gentle riding for the first couple of km.