using other brand cdi boxes....

[tom203]

If you want to pursue an alternative ignition system, consider attempting to use the setup off the 650 shafties- very robust ignitor and mechanically advancer setup and they surface allthe time on ebay. I tested five different ignitors on my bike years ago and all worked perfectly - sold two. I also have the complete advancer setup - signal plate with coils/lead , advancer assembly with thru bolt and nut. As Nessism says, it might be be big to fit- I have no idea. The 650 signal plate is 3.625 inch diameter with a height of 1 inch.

[dgstoll]

thanks for the various responses. I have another used ignitor in the mail and found the info on an updated R/R most useful. I have a Series R/R from a Polaris ATV on the way also. This seems to be money well spent.

The first ignitor was killed by a bad aftermarket R/R installed by PO of the past putting out high voltage spikes....both R/Rs I put on from Ricks did not do very well and just barely kept the battery charged. The first one I sent back and they said it was bad and sent another one which barely worked better than the first so the Series R/R seems like a much better option. Battery did get low and I jump started it from a running car so that could explain the 2nd failure. The first one only failed on 2 cylinders so I plugged it in when the the bike would not start and it immediately started up on 2 cylinders so I knew the 2nd unit was total failure.

One of the issues with this bike was a PO cut the plug off the bike wiring going to the R/R when installing the aftermarket R/R and garbled it up so bad the stator had trouble due to the resistance caused by the hacked up wiring connections. I finally ran new wires from the end of the wiring harness of the stator to the R/R....


I downloaded the manual for a GS1100G and found the wiring diagrams for the ignitor and description of the way it works to be identical with the 83 GS750ES. The only real difference was the GS1100G box had wires coming out of it with connectors and the 750ES box has direct connect plugs so by connecting the the wires differently you should have the same results. Even the color code of the wires is the same....
googling a ignitor for a GS1100G got more results than for a '83 GS750ES....

I will also mention that I do not consider regular maintenance items like tires, brake pads, fork seals as costs which would make me want to get rid of a bike.....I have 4 bikes and all are on the road....'77 BMW R100s which I bought new and have a Dyna III ignition it with 195K miles, a '98 KLR which just turned over 67000 miles today and a 2003 Concours which I found for $1800 last August...which the wife likes for the very soft custom seat...

bottom line is the 750ES is a fun bike to blast around on and has been a nice commuter bike...just a little loud with the 4-1 yoshi pipe.....

dave

[dgstoll]

If you want to pursue an alternative ignition system, consider attempting to use the setup off the 650 shafties- very robust ignitor and mechanically advancer setup and they surface allthe time on ebay. I tested five different ignitors on my bike years ago and all worked perfectly - sold two. I also have the complete advancer setup - signal plate with coils/lead , advancer assembly with thru bolt and nut. As Nessism says, it might be be big to fit- I have no idea. The 650 signal plate is 3.625 inch diameter with a height of 1 inch.

I had a conversaton with Dynatek a couple years ago and they said the end of the crank was different on the 83 750ES so the setups they offer would not work. If you have some spare 650 parts around I would like to borrow them and see if they would fit...my son lives in Windham so we are down your way several times a yr....

[tom203]

You sound ambitious, so here's an ebay item that I stumbled on - it might be adaptable to a dyna setup : it's not off a 650, likely a ND setup off a 550 or 750

http://www.ebay.com/itm/1979-Suzuki-GS650-GS-650-Ignition-Points-Plate-/361948594997?hash=item5445d14335:g:uhgAAOSwDmBY37tC&vxp=mtr

[dgstoll]

You sound ambitious, so here's an ebay item that I stumbled on - it might be adaptable to a dyna setup : it's not off a 650, likely a ND setup off a 550 or 750

http://www.ebay.com/itm/1979-Suzuki-...BY37tC&vxp=mtr

I will ask him what the dia. of the hole in the advance mechanism is and measure what is on my bike...I'm guessing that is where the issue is....

[dgstoll]

maybe this is the answer...

https://www.facebook.com/groups/120092014852844/

[dgstoll]

the bike returned to the street with a new Polaris RZR R/R and ebay ignitor.....R/R is putting out much better voltage than the Rick's Electric OEM style R/R ever did....
and yes, the bike is worth the money, what a fun ride...
dave

[tom203]

Glad to hear it... You'll be happy with the sh-775- I mated one with a previously tortured stator back in 2013 and all is still well.