Well, here it is...my new baby. I have designed a new ignition system which will work with any XS650. The system is made up of a rotor with four magnets that activate a "Hall Effect" sensor coupled to an "IGBT" purpose built transistor to drive a 2 to 4 ohm coil. There are only two active electronic components.
I have had this system working on my faithful '78/E standard for the past few weeks and in keeping with my policy of not recommending anything I haven't actually installed on my bike, I bought a great (less than 9,000 miles) 1981/H and installed it on it as well to confirm that it is compatible with the stock coil.
Here is an updated picture of the plate and all of the electronics, now mounted on a PC board.
mrriggs...thanks for the compliment. Coming from you, I really appreciate it.
captdan...I think if you PM me for the price, you will see I'm true to my policy.
mashermoto...the 277 version does not require an external "box of tricks"
jack...the recommended coil is any coil with 2 to 4 ohms primary resistance (recommended 2.5 Ohms). Dual output for the standard system, and two single output coils for the 277 system. I have been asked this question a lot lately, so I will compile a list of recommended coils and post it.
The 277 system is as shown with the addition of a second Hall Effect sensor 138.5 degrees counter clockwise from the the standard sensor and a second transistor to drive a second coil. Please PM me for the "Tag".
Last Edit: Feb 10, 2008 18:35:07 GMT -5 by pamcopete
PM ya Pete Now if we could just locate some decent alternative advance springs with different tensions to alter ignition advancement but anyway that'll be down the road till I get the Q chamber bugs worked out............Jack
Post by mashermoto on Feb 11, 2008 16:49:31 GMT -5
Pete, et. al.,
Below are a couple of links to the Gerber ignition post. The links show the Crane Cam single output coils you recommended back then for a 277 re-phase and a method to install them on the stock coil mounts.
Your recommendation worked out real well...thought it was worth repeating here.
Well my hat is off to Pamcopete. I completed the installation of his universal ignition yesterday and WOW! To anybody wondering about trying one out let me say that the whole install including the timing took about 30 minutes (I already had the dual output coil installed last year). The ignition came with detailed instructions plus all the screws and connectors to complete the job. Timing was a breeze also as I did not experience the erratic jumping or time change I saw when adjusting and tightening with my old points plate. The temperature got up to the mid 40's so you know I had to try it out, and ya you guessed it it worked pretty darn good. I did some frame mods as well and will be posting some pics of the install A.S.A.P. Thanks again to all at the Garage. Almost forgot, I have a 78 Special.
r80rt: :)This is a splendid write up, THANK YOU!!!!
Dec 26, 2015 16:54:05 GMT -5
mashermoto: What the what is this shoutbox for? Or should I shout, WHAT THE WHAT IS THIS SHOUTBOX FOR!
May 12, 2016 22:22:21 GMT -5
motormike: Good Day ...just a FYI.. Wild Cat is this Labor Day weekend. Still go'n on. A few 650's still make the scene. Various rides at different skill levels each day.. awards dinner sunday eve. BS in the park'n lot after dinner.
Aug 23, 2016 7:57:01 GMT -5
lsettle: First post in over 6 years!
Aug 28, 2016 19:45:17 GMT -5
kardon: Wow quiet here, where did they all go.
Oct 7, 2016 2:18:13 GMT -5
gggGary: XS650.com LOL
Feb 16, 2017 20:49:02 GMT -5
buell88: Anybody have any idea who built the xs650 tracker used in the Draggin Jeans Ad on Pipeburn?
May 16, 2017 16:24:09 GMT -5
joshua: The regulator/rectifier unit I got from Mikes PMA has closer hole spacing than original. Are we supposed to mill the holes to fit?
Jun 7, 2017 19:25:58 GMT -5
joshua: My bad. I found the bracket they supplied to mount the rectifier/regulator... Uh oh. How is this meant to work? Which way is it meant to mount? Looks like I have to use some spacers or something. Good instructions would be nice.
Jun 7, 2017 22:09:52 GMT -5
craig8johnson: Not sure if this is the right spot or not but oh well...
Jul 11, 2017 18:04:15 GMT -5
craig8johnson: I'm checking the charging system. I'm afraid I might have fried the last battery. With the solid state regulator (after market) what should it be charging at. The book says, I think, 15 volts. I'm hitting 17 when revved. Is that too high?
Jul 11, 2017 18:06:19 GMT -5
gggGary: Yes 17 volts is too high, about 14 volts is max, sounds like you don't have the right regulator or it's wired wrong.
Jul 13, 2017 6:54:33 GMT -5
dean: Just saying Hello, new member who is going to fix up a 79 XS650 that has seen its better days. I will definitely have lots of questions coming up.
Jun 23, 2018 16:45:32 GMT -5
tt650: Trying to breathe life into a 1980 that's been stored (indoors) for 25 yrs. Air filters are dry rotted. Have cleaned carbs but she only runs briefly on choke then stops. Need jet setting info and other ideas that might help her idle and rev.
Jul 3, 2018 19:15:19 GMT -5
trix13: Hey everyone! New to the forum and am fighting those gremlins!! New charging system, ignition switch, coil and fuse box. Resistance is higher than normal on the ignition pick up so I'm trying to find one. No such luck yet.
Aug 16, 2018 8:50:48 GMT -5
trix13: Also, even though all of my connections are clean, I cannot seem to find out why , when at higher rpms, I hit the signals and the rpms pulse with the signals...hahah. same with the brake light. I appreciate all input!!
Aug 16, 2018 8:55:08 GMT -5
bob99: how do I post a question. I am new to the forum
Jun 6, 2019 10:52:10 GMT -5
adlpc: Hello all! Been enjoying your edifying posts and discussions - and as a fan of the XS650 since my early teenage years happy that I now own a 1980 Special which I plan to turn into a vintage half faired racer. Thank you all for being here!
Oct 1, 2019 0:58:56 GMT -5
jimothyj: Hello everyone, I just joined & wish would have known about this site in 2014 when I brought my 1974 TX650A back from the grave. I have spent a good deal of $$ and alot of time on it. Just painted it and working on electrical, I will post pics soon,
Apr 10, 2021 2:14:13 GMT -5
louisvan: trix13 - I had a problem with my 1975 SX650. When I got to highway speeds, the engine lost power. The problem was in the connectors. At a certain vibration and the wind pushing on the wiring loom, the connector lost continuity. A bad crimp to the wire.
May 20, 2021 1:19:09 GMT -5