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By mart
#90182
OK - slightly embarrasing question. Ive just bought this 1951 Model G and it has an adjustable ignition advance.
What is the proceedure for starting and running, in terms of handlebar lever position? Ive not owned a bike this old before so its all new to me. In case you were wondering the wheels are from a Husqvarna and the handlebars will be changed soon!
thanks
By Bullet Whisperer
#90187
Assuming the timing is set correctly, try pulling the A/R lever about halfway back for starting, any more might make starting harder, due to the spark being weaker [strongest spark is at full advance]. You might even be ok with full advance for starting, but there will be higher odds of kicking back set like this.
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By Adrian
#90188
[Edit] Sorry, missed Bullet Whisperer's post while I was typing!

If it's the same as THIS one for sale on ebay

Image

it will have what's known as slack wire advance. If you follow the ignition control wire up from the left-hand side of the magdyno (as you're looking at it) will come to a lever on the handlebars. If you wind the lever on it will retard the ignition for starting by moving the points plate round a few degrees in the direction the magneto spindle is already rotating, this retards the ignition for starting, once you have the bike running you can advance the ignition by moving the lever back. This slackens the control wire so the spring inside the a/r mechanism moves the points back into the advanced position.

A.
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By Adrian
#90189
As for Bullet Whisperer's point about not retarding the ignition fully, I think you will have to go and play until you find the sweet spot for starting. I'm about to replace the auto-advance magneto on one of mine with a manual advance one, so I am expecting the odd sore ankle until I perfect the technique.

This video is for an AJS, not a Royal Enfield, but you might find it helpful.

https://www.youtube.com/watch?v=ejdIFIptvCs

A.
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By Chris [Stockport]
#90195
I don't know anything about the Model G. But I emailed someone who has one and so send his message on. So, here are his thoughts:


The way I do it and it starts almost 1st kick. I always feel it easier to start my bike when it’s sitting on its stand. That may be because of my age. Remember that a bike of that age require respect. My Model G is 1948. (72 years of age, not quite as old as me.

1. Turn on petrol tap, I use the tap on the LH side. Once the tank is full, check the mileage on the clock and refill tank after 150 or so miles.
2. The choke lever on my bike is on the RH side of handlebar, and the cable goes to the top of the carburettor (Look See). When you push the choke lever to the right anticlockwise it lowers the slide in the Carb which activates the choke. When you pull the lever to the left clockwise it shortens the cable, and pulls the slide up, allowing fuller air intake. In this hot weather you probably need no choke activation. So the cable is shortened to NO CHOKE to the stop.
3. The Advance/Retard lever on the LH side of the handlebars, and is pushed to the left clockwise and retards the ignition which will lessen the chance of kick back on the kick start which if happens can break your bones in your foot or fire you up into orbit. You only require a little retard to start up. So you push the cable out about 1/2” to 3/4” movement clockwise on the lever. (About half way between stops)
4. DON'T turn the throttle. Push the kick start pedal and feel when the compression is hardest at Top Dead Centre. Gentle push the kick start further and when the lever is nearing horizontal, kick it HARD to past the bottom of swing and when you get good at it the engine should fire up.
5. When the engine is running advance the engine by pulling the Advance/Retard lever to the right anticlockwise to the stop on the lever.
6. Allow the engine to warm up by idling. Once that has happened you can ride it.

There is generally a knack to starting a bike with the Magdyno. Part Magneto part Dynamo. The Magneto runs the ignition and keeps the engine going, the Dynamo supplies electricity to the lights and horn. The Dynamo sits on top of the Magneto. If when running the bike so the engine is hot and you find it impossible to restart after a rest, the heat is affecting to efficiency of the Magneto, which can happen with an elderly bike, and so then the Magneto requires professional attention.
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By Adrian
#90198
Hi Mart,

I can't see the picture, post the photo hosting web-site's BBCode now, not the HTML like we had to do in the past!

Do you have one of the handlebar controls?

A.

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