Another stuck in first gear

Bought my 82 xj650 seca as a learning project, and boy has it been. for the past 4 months its been ride-able for 2 weeks tops.
recently I was riding home and pulled up to a stop light and the bike would not shift up from first. my first assumption was the primary chain guide, but now I'm not so sure. I wanted to get a second opinion from the more experienced before I start taking things apart. I'm currently renting a room while in college so I don't have a garage or workbench so I can't just take the bike apart and leave it in the driveway or my landlady is not so happy about my ugly old bike spilling oil on her wonderful driveway
I just did an oil change maybe 20 miles before it got stuck in gear.I topped it off with a little bit of diesel oil had laying around because my car car wasn't running either and i didn't feel like taking an uber to autozone, and i also accidentally overfilled it. the oil was at least 90% motorcycle oil and i figured the small amount wouldn't cause any problems. I noticed the clutch slipping a little i few days later, but i had just adjusted the clutch that day also, so I'm not sure which was the culprit. now even with the clutch pulled in it is verrry hard to push the bike. It is definitely releasing the clutch (i can see the pressure plate release through the oil filler, but with the bike on the center stand and the clutch pulled in the rear wheel will not spin. Maybe I warped the clutch and its dragging a lot now? could a stuck clutch even be preventing me from getting into neutral? I've tried rolling the bike back and forth while applying pressure to the shifter with no avail. my thought is that I should still be able to pop into neutral with with a sticky clutch. Should I start on the clutch side or should I go into the shifter side first(chain guide and mousetrap were the only possibilities I know of)? Between school and work I don't have much daylight to work in and was hoping for some advice before I dive in.
Thanks in advance

 

You shouldn't spill (hardly amy) oil if you put the bike on side-stand and take the clutch cover off for a look/see - not sure that helps much but it's a quick low-risk first port of call.

 

Being hard to push in neutral is the clutch dragging, not slipping. Slipping occurs under power/under a load.

Check your shift linkage and shifter- always check the simple stuff first. Is the arm tight on the splined shaft? Has it slipped so that it cant get full travel now?

 

Yes i know. The clutch was slipping under load, usually right after a shift to second or third under load. revs would stay up for a second or two and then come back down. my theory was that the slipping overheated the clutch and warped it causing the new-found drag. I will take a look at the shifter mechanism itself when i get home tonight.

 

there is also a spring that breaks a lot in the shifter good news is you will be opening up the same cover to check spring and chain guide


http://www.xjcd.org/emergency_guidectomy

 

Take a look at Moe's lecture on picking the right oil for your motorcycle:
http://xjbikes.com/forums/threads/choosing-the-correct-oil-for-a-wet-clutch-motorcycle.43702/

 

And, take your time. It's OK to go slow when you are learning your machine. Patience will pay dividends later.

 

Thank you guys for the advice. Really appreciate it. Turned out to be a chunk of the chain guide. It's too big to come out and I can't seem to break it. Tough to be patient here, I want to ride! Guess I'll grab a beer and try again tomorrow. At least I know what the problem is though!

 

If you do get it out, go ahead and read up on how to split the cases to replace the guide. You'll need to do that this winter. Ride too many miles with a broken guide and you'll wear through the oil nozzle. Rebuild the starter clutch while you're in there.