Post by jetmechmarty on Oct 22, 2004 17:20:57 GMT -5
I've got a no spark 650. I am suspicious of the pick-up coil. I separated the connector under the left side cover. BTW, my bike is a 1983 SK. I believe the cable coming up is from the pick-up coil. With an ohm meter, I read the mail side of the connector. There is no continuity between any (white/red, white/green, and blsck/white). They all indicate infinity.
On the female side 700 ohms was indicated between white/red and black/white. Infinity was read any other way I read it.
Is there another connector closer to the pick-up coil? Looking at the schematic on Jean's site, I think I should read 700 ohms white/red to black/white and 700 ohms white/green to black/white on the male connector. Does this sound right?
700 ohms is correct for the pickup there are two windings . The problem is likley the black box it is usually loose connections on the pc board I have some luck repairing them and the components are common. Dwayne
Post by jetmechmarty on Oct 23, 2004 17:08:11 GMT -5
I have a bad pick-up coil on my '83 SK. When I replace it, will I need to time the ignition? On a new one, does it come with enough wire to go all the way to the connector, or will I have to cut into the sheathing and butt splice it? Any good tricks?
jetmeckmarty I guess i did not explain myself very well . there are two coils in the pickup connected together i believe the black is the center each winding is 700ohms one is retard for starting the other is run the ign box switches after the bike starts . if you have 700 ohms from black to the the other two (each) your pickup is very likely good . if you do have to replace scribe around the old one put the new one on that spot. Dwayne
I`m facing the same dilema on my newly aquired 81. I only had spark at the initial push of the starter button. Then no spark there after during cranking Swapped out the TCI unit from my running 82 with no change. Checked resistance at the pickup coil plug. 725 ohms athe orange Infinity at the grey. Seams to be a bad pick up coil. Where can I get a replacement . Mikes XS doesn`t have them on their website.
Try watching Ebay, or asking in the "Parts Needed/Wanted catagory...Also check with any of the vendors listed in the "Links" ..These are not available from Yamaha anymore, but there are plenty of used ones out there that are still good.
Yamaha XS650, the past is a just a blur in the mirrors.
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