Mecahnical advance...1983 GS1100E

[Anonymous]

I am confused, I thought that the 83 1100E did not have a mechanical advance, so what is teh centrifugal device behind the pick ups?

Is this stock or someone else's mod?


Thanks,
Derrick

[earlfor]

Re: Mecahnical advance...1983 GS1100E

83 1100E's have a stock mechanical advance behind the breaker plate.
I have that bike and I recently made some modifications to the advance unit.

Earl

I am confused, I thought that the 83 1100E did not have a mechanical advance, so what is teh centrifugal device behind the pick ups?

Is this stock or someone else's mod?


Thanks,
Derrick

[lecroy]

Re: Mecahnical advance...1983 GS1100E

Agree, it's stock.

I have that bike and I recently made some modifications to the advance unit.

Care to shine some light on this??

[earlfor]

Re: Mecahnical advance...1983 GS1100E

The reason I made some changes was the stock ignitor on the 1100 was toast and I didnt feel like throwing $350 at a new one. I had on hand, a Dyna S ignition for a 79 750. It will not fit the 83 1100. The shaft on the 1100 is much longer than that on the 750. I also had a points breaker plate and counterweight assembly from an 850, plus a breaker plate for a 750. The counterweight mechanisms between the 1100 and 850 are not interchangable either. The crankshaft mating end of the 850 advance unit is larger than on the 1100. The springs are different between the two also.
The 1100 springs are lighter. The 850 springs are heavier and (should) delay the onset of the advance slightly. I turned down the mating end of the 850 advance to fit into the recess on the 1100 crank. This gave me a shaft short enough for the rotor to be clear of the ignition cover. I filed the rotor to fit the 1100 crank end and I used the 850 advance springs to delay the advance curve. I delayed the advance on my 1150 electronically and that solved a heating problem I was having with it. The 1100 doesnt have an oil cooler (yet :-) ), so whatever I can do to keep it running cooler is likely a good thing.

New ignition system...........cost..........about two hours of labor in modifying parts. :-)

Earl

Agree, it's stock.

I have that bike and I recently made some modifications to the advance unit.

Care to shine some light on this??