yet another question (re: temp this time)

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Apr 2, 2010
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hello all,

as you know, I have just purchased a 1974 850 Commando.

While I am waiting for the Insurance Corporation of British Columbia to grant me my collector plates and insurance (a process which may take up to two months - crap) I have been starting her. I have been doing this both for practice and so she won't starve for oil. I am now down to one or two kicks!!

Tonight in the dark I noticed that the right exhaust glows a dull red when running. The other exhaust does too but is cooler.

I don't think that this is anything to worry about but thought it a good idea to bounce it off of you all for your experience in all things Norton.

thoughts?



ps

I have christened her Ethyl, mostly for the smell she makes in the garage.
 

comnoz

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Glowing exhaust usually means the ignition timing is slow or advance unit is stuck. Jim
 
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As Jim says, timing, but that affects both cylinders with electronic ign. With points you could have a small contact gap on one cylinder retarding ign. Still on points? Also if you hold the revs high (>2000) for more than 5 mins in warm ambient the pipes will go cherry red.
 
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Ha [quoteAlso if you hold the revs high (>2000) for more than 5 mins in warm ambient the pipes will go cherry red.][/quote]

Not up here they don't!

Timing out I'd say, fit electronic and forget!
 
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And if you are running it for any length of time, put a window fan in front of the motor to slough of excess heat. An air-cooled motor tends to get very hot with no air flowing over the fins. If you are not running it for a decent length of time (long enough for the oil tank to warm up) you are doing the motor more harm than good.
 
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I am not running the engine for extended periods of time and certainly not every day! Every few days I start the engine, let it warm up (to drive the condensate out of the oil) and to get the oil flowing around properly.

I only noticed the dull red pipes because it was pitch dark outside and I was not riding the bike. I am still waiting for the ICBC gods to give me my collector's plates and insurance.

Should I ride her up and down the alley next time I start her, just for airflow/cooling? Or should I let her sit for the 2 months of waiting?

As for the pipes, they are a dull red in the pitch dark for about 4-5" past the cooling fins. (One pipe is only 2-3" of the dull red colour.)
 
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roqueweiler said:
Should I ride her up and down the alley next time I start her, just for airflow/cooling? Or should I let her sit for the 2 months of waiting?
As someone with a personal test track (aka back alley) I vote for that. :)
 
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