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
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
deadlykittin: Hey guys,. i have a 82 xs650 special, super new rider, with almost no knowledge on bikes. So was just riding it, getting used to the clutch and all that. But i was noticed its really hard to get the bike to start, using electric start. And the kick pump---
Aug 4, 2022 17:09:55 GMT -5
deadlykittin: loses compression after the first kick. Ontop of that, i noticed it 1, wont go into neutral when sitting still. and now it dies after getting it started in neutral and going into gear
Aug 4, 2022 17:11:01 GMT -5