New to the board. thanks in advance. A buddy's XS650 - Mid '70's vintage. Hitachi Starter.
Bike was sitting a LOOOONNNNNGGG time. Removed starter. was filled with a mixture of oil and gas, as was the crank case. I guess gravity fed the fuel from the tank through 1 or both carbs, and then past an intake valve, past piston rings, to crank case.
Question- Are brushes and seal Available? Where? Do you need more info from bike? Year, serial #, etc.?
Of course you will find a ton of good wrenching info right here if you spend some time searching the site. If you can't find something specific however, just ask. There are a lot of friendly folk here always willing to help others.
Post by retiredgentleman on Feb 4, 2010 11:44:47 GMT -5
There are actually 2 seals. 1 for the starter motor shaft and 1 for the engine casing. The most difficult thing is removing the 2 long screws that hold the starter motor together. I had to cut a slot into the head of one screw in order to use a slot screwdriver.
The starter motor is very well built.When you take it apart you may find the brushes are not worn much. New length is 0.630" and replace is 0.280". I found mine at 0.587", so I did not replace them.
I also found the commutator to have minimal wear. I just used some Autosol polishing compound to clean up the copper segments. You can use any polishing compound, even tooth paste would likely work.
Be aware that the casing oil seal does not fit evenly alined with the engine casing. 3bond 1104 gasket sealant is put around the outer edge of the seal and then push the seal into the casing.........but only part way. Then use the starter motor itself as a guide to push and aline the seal correctly...............see picture.
Centering the armature in the brush holder, it appears that one of the two brushes is barely (at best) contacting the commutator. I really like the idea of tooth paste to polish the commutator. I have used it elsewhere (like on my teeth), but had not considered it for this application (what do you recommend, Pearl Drops? Crest? Colgate?). Also, I had not considered replacing the seal on the crank case. But it seems like a good idea, since the starter removal is a bit tricky (putting it back will be even more fun). I couldn't find that seal on the Biker.net exploded views. I'm sure it's there, but which drawing? Lucky for me, I had no trouble disassembling the starter motor.
Thanks again for the help! I'll keep you posted on the progress. Neilski
Post by retiredgentleman on Feb 5, 2010 11:42:00 GMT -5
As for the brush length.............go by the dimensions I listed above. If one brush is barely touching, it must be quite short, and needs to be replaced. I prefer Colgate.........for sparkling clean teeth ;D
slide: Mike, I suggest you consider a PMA from Hugh's Handbuilt. I have had one for two years and it works great. Couple that up with a new Pamco with the auto advance and you will be good to go for a long time. I think the cost may be less as well
Jul 21, 2015 12:28:05 GMT -5
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