Trick to getting the frame off?

Hey guys, I'm trying to tear my 85 750 apart and I can't get the frame off, am I doing something wrong? I have everything off except for the fact that the exhaust is rusted on and I can't get the mufflers to slip off the headers, but it doesn't look like they're keeping me from pulling the frame. I'd rather not cut them but I suppose if I have to, I will.

This is where the bike is now

(EDIT) I took this picture on my phone through the sliding glass door, I didn't realize how fuzzy it made the picture.

Except now the swingarm is off. And I have the lower frame motor mount bar...thing on the left side of the bike off. But the right side lower part of the frame is preventing it from going higher and allowing my to clear the heads with the top of the frame. I'm pretty sure I don't have to pull the heads for this, and I'm also sure I can leave the headers on, I'm probably over-thinking this so someone please dumb it down for me.

Any insight would be helpful, I'm a very adept mechanic but this is my first bike ever, so in that regard treat me as if I know nothing.

Thanks guys

 

You need to remove the exhaust (rear head tubes can stay on) pull the carbs and the left frame rail. It will wiggle oot at that point but it is still a bit of a trick.

 

If by lower motor mount bar thing, you mean the removable frame section, then that's good. Does it move around a little, like all the mounting hardware has been removed? The picture shows a few bolts still in. First, I would take off any remaining pieces on the frame, wiring harness, rad bottle, etc. Remove the thermostat and hose. You're so close to a bare frame that it makes sense to finish it. That way you can repaint it easily. With everything free, it's just a matter of playing with it till you see where it needs to tilt. Seems I always have to drop an end while tilting it sideways to get it to go. Some people will take off the clutch cover for a few more mm's but you don't have to.

Spray a ton of PB on the exhaust studs for a few days if you plan on removing them. they tend to snap like twigs.

This is the only way I take a motor out. It's worth it to me to take off everything and pull the frame up rather than wrestle with the motor while it's hanging from the frame.

Are you doing a restore on the whole bike?

 

Yeah that picture isn't entirely accurate. That was a couple days ago, the rest of the wiring is off, the swingarm is off, all the little hoses and stuff are off, as well as all of the bolts holding the motor on. It just doesn't look like any of the things you guys are mentioning are what is causing me not to pull it off. But I'll try the carbs and the tstat and everything tonight. The exhaust is under everything and I don't think thats an issue. But it isn't the nuts in the head that aren't coming off, its the slip on rear section. Its rusted to the rest of the exhaust and even soaking it in PB for a few days and giving it some pretty decent hits with a dead blow aren't doing the trick. I assumed I could get the pipes off after the fram is off and just remove the header pipes and the muffler section all as one.

And yes, I am doing somewhat of a restoration on this, a bunch of powdercoating, reconditioning the heads and whatnot, making sure everything is in good shape. I just need to figure out what color to paint it.

 

Definitely carbs off. I couldn't tell by the pic if they were on or not. My monitor is dark.

 

Better put the cell phone down and start getting those mufflers and headers off.
Talking on the phone is not going to get anything done.

You do not need to get the carbs off.
You don't that the frame OFF -You take the engine out of the frame.

Set the bike on the ground.
Remove ALL of the engine mount bolts on the left and right side and the mufflers and headers. Anything else connecting the engine to the frame.

But you cannot do anything till you put the phone down.

 

Well I took DB's advice and put the phone down...for a minute anyways. I took the carbs off, and I finally got the exhaust off. And now that I know the tricks to it next time it should be a snap. So the engine is out and stuff is starting to get cleaned. But I was very surprised when I took the head covers off (sorry, I picked the phone back up)










By the way, what is this?

 

that? thats not important. oh um you mean to keep the battery charged? ok my bad, the stator is important then...

 

Glad you got it out.

a. What were you surprised at?

b. That water pump looks scary.

 

I think he was surprised at how clean the engine is inside. Normal.
He probably thought it would look like a car engine inside.
Different animal.

BTW....DO NOT let that clutch rod get bent. If it gets bent the slightest amount it will never work right again.
Also do not pull the clutch rod out until you have checked the parts breakdown and are sure there is no ball bearing that will fall out.
Some do have a ball bearing but most new motorcycle engines have a rounded hardened end right on the rod. Each end is different.

 

Yeah I was definitely expecting a car engine, only 2 engines that I've taken apart in the last 8 months have looked this good but they had less than 1000 miles on them, and I do at least 2 motors a week. This is the first bike I've ever worked on.

And I did pull the clutch rod out when I took the slave off and it did have a rounded end but I will re-evaluate it and make sure I didn't booger anything up. And I'll check the straightness of the pushrod, thanks for the heads up, that would have driven me nuts.

And yes that waterpump is awful, its definitely getting a replacement.

Do you guys have any recommendations of what to change while I have this out? I'm going to do the water pump and hoses, the carb boots and whatnot. I was going to take the heads off and check the valves but as clean as all of this looks I think I might leave it. Do these things have a bad problem with burning valves? Oh and I'll also do that oiling thing, in my experience cam wear like that is generally oil related, but every little bit helps and I'd rather do a little work now than re-do it later.