Warming Up

[speedy231278]

As I said before, I normally wait for the jump in revs. 10 mins seems a drastically long time for that to happen. In summer, my RVF takes anything from about a minute to just a few seconds after starting before the revs rise significantly. In the winter, it can be several minutes, but I'd say even in freezing weather I'd not expect it to be even five, never mind ten!

[ggavin]

As I said before, I normally wait for the jump in revs. 10 mins seems a drastically long time for that to happen. In summer, my RVF takes anything from about a minute to just a few seconds after starting before the revs rise significantly. In the winter, it can be several minutes, but I'd say even in freezing weather I'd not expect it to be even five, never mind ten!

Agreed. Every time I wait, I say to myself...something is definitely wrong, 10 minutes is just too long whenever the engine is cold, usually I have to do this twice a day. Might this be another issue then? Something that's causing my bike to warm up slow? Any ideas?

[johnnie5]

My NC30 idles about 4-4.5k revs with the choke on, this is the process I use (Which is how I think Alex showed me!):
* Start engine with full choke, wait for revs to rise and stop about 4-4.5k
* Reduce choke by about 3rd wait for revs to be stable about 3-3.5k
* Reduce choke further, wait for revs to stable about 2.5k
* close choke, wait for revs to be stable and temp gauge to be in the blue.
If cuts out then raise by a third.

you need to adjust your choke cable

[johnnie5]

that to happen. Now I am a bit confused since I'm getting different answers. Am I suppose to let it sit and wait til the revs jump? Or ride delicately until it warms up? Which is the correct routine?

Thanks all!!

ride it easy till warm

[benny]

Shouldn't take ten minutes, less than one really!
After reading this thread I now have it on full choke to start until it reaches about 4.5k (less than a minute is say) choke all the way off till I finish putting helmet and gloves on then ride off, without going past 7k ish until bike temp looks reasonable (past the blue)

[Neosophist]

I think your choke isnt adjusted properly so it isnt opening the choke fully, easy enough to check.

I started my bike up in the winter when it was -10 or so and it only took about 30 seconds to be idling at 4000rpm with choke, by which point i switched it off and warmed it up with throttle until warm.

[Morespeedvicar]

I just start it up full choke, and ride off, then wait for ten mins waiting for a gap in the traffic round the corner or go fill up with fuel!!!
I couldn't be doing with leaving it reving for ten mins on choke just sat there, thats pointless and a waist of fuel really. just ride it carefully and dont rev it too much till its nice and warm, i bet knowbody sits in there car for ten mins waiting for it to warm up?????? In the handbook of me mondeo is actually say not too!!
I do the same all year (well used too, not riden for ages) even when its thick ice.

[Harryredchow]

Put on helmet and gloves. Pull choke, start bike, ride off, as soon as I am above 4k I put the choke in. Job done.

[Jac-al]

Mine takes really long to warm up aswell, very irritating, and by warmed up i mean the guage is at 90`c

[Kurlon]

I won't put a bike under load until there is some heat in the engine. If I've got a temp gauge with a direct readout, 120deg F minimum. No direct readout, unable to put the back of my hand on the cylinder. While warming up I keep the revs just a touch above idle, 1800 to 2000 RPM or so, but not by using the choke. Staying on choke too long delays warm up, as the engine warms up and wants a leaner mix that extra fuel acts as coolant, plus you're just loading the top end up with carbon due to poorer combustion. This shouldn't take more than 3 minutes typically.

On my race bike I go one step further, she gets warmed up to 120deg F or more with a higher idle, then shut off to allow the heat time to soak and spread. Then I'll fire her up, verify she's got good heat in her and give'er a good hot supper on the track. :D