Read story first poll - Stopping your bike..

[Zapf]

cars cool down... and I can verify that by all the fancy gauges I had in my last car... but bikes heat up... as the cooling systems in bikes really rely on air moving thru them, cars too but to a lesser degree

[TONO]

exactly.. this guy has 'had his license for 32 years', and he 'is right no matter what, cause i've only been riding for 3 months..'

.

Well I have had mine since 1967 or 39 years so tell him he is full of shit.

[MattRSK]

Huh I voted for letting the water cooled bike have time to cool down. Dont know why????

[Back Fire]

I rode my 125 single cylinder 4 stroke, air cooled dirt bike non stop, at a constant 100km/h, redlining top gear for 300ish km's... was about 3-4 hours non stop... turned it off straight away as soon as I got to my destination... the exhaust ticked quite a bit but other than that it actually seemed to run better the next time I rode it (which was 300km's non stop back home the next day)

[Ixion]

Um. Given his age there IS one old time thing he might be thinking of.

The old Briddish iron had dry sumps. Oil in a separate tank, and two oil pumps.One from tank to engine, other pump to pump it back.

If you thrashed some of those bikes hard for a good distance, the feed pump would sometimes get ahead of the scavenge pump. So if you stopped quickly and just turned the engine off, the crankcases were left full of oil, which was considered a Bad Thing.

So we used to let the motor idle for a minute to clear the oil out.

That's the only thing I can think of.

(actually I tink it was caused by oil frothing so the scavenge pump became inefficient. But whatever)

[Brett]

Most bikes are reliant on air cooling as the main form of t loss, thus idling them is NOT going to help cool them dwn too much more.

[Pancakes]

I agree with everyone and not your nob-head collegue, If I have been holding the revs up and having a bit of fun on the way home I'll ease off on the last few streets. Plenty of air-flow, the oil still being pumped around so there's no hot spots and crap, even thats the last maybe 2 minutes of a ride. You should do a "warming up" poll and make sure you include all 6 million options so everyone can tick the box they choose!

[Lou Girardin]

No one has mentioned Buells. The fan runs on for a while after they're switched off in order to cool the rear cylinder which is well shrouded by the frame etc.
Otherwise Mr 'Riding 32 years' is full of shit.

[Wolf]

I've been having a great giggle reading this thread. Had never heard of a "cool-down period" before, but WTF do I know, I've only had my licence for almost 25 years, so obviously I must defer to your workmate's greater knowledge (Tui Ad in there somewhere).

I've always just shut the bikes down - and that includes immediately after lengthy open road rides when the bike has been so hot you can smell it and you hear the metal bits ticking as they contract.

[Storm]

The dude should be in politics- no idea, full of shit and a steadfast refusal to even consider anyone else point. Tell him to run in the next election