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Old 10-07-2012, 08:42 PM   #91
WVhillbilly
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If you are going to run that this winter, I wouldn't wrap those pipes. They will rust.
Looks like a pretty decent bike tho.
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Old 10-08-2012, 08:51 AM   #92
MotoJ
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Nice score! Yeah, a little pricey, but if it's what you wanted, so what?
That crossover will help the mid-range and the bike will run a little smoother with some relief for the gases trying to escape down each pipe. The baffles will help too, like you say.

Popping on decel could be leaned out carbs, but probably has to do with the exhaust mods. Is the air cleaner still in there?

i agree about the wrapping too- it will make the pipes rust out quicker.
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Old 10-08-2012, 04:16 PM   #93
Leaf OP
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(Crossposted from the DOHC/4 forums)

Farted around with the rear brake. Took the caliper off but couldn't compress it (with the bleeder loose), so I decided it musta been the caliper jammed up instead of the MC.

Disconnected caliper. Removed reservoir and cleaned it up good. Pumped fluid through the system until it ran clear.

PB blastered and pounded on the MC off the other bike (it looks like it's in better shape) until the piston broke loose. Pumped the piston out and cleaned everything up good and took some emery cloth to the bore and the piston and smoothed it all up. Put it back together and pumped up the brake.

Jammed.

Damn, it was the MC after all.

Screwed around for a while trying to get the MC plate off without unmounting the exhaust, because I don't have any crush rings. Then it started raining harder and it became too uncomfortable so I came inside to eat this tasty sandwich. Mmmmm, sammich.

Those allen bolts sure turn hard. Makes me think they're not supposed to come out, so I turned 'em back where they were and left 'em alone. I think if I took them out and turned that plate out of the way, I might be able to get at the banjo bolt from the back, though.....

----

Also:

Was a good 3/4 quart low on oil. Must have puked more out around the tach drive than I thought? Hm!

Topped it off and fired it up to see if I could spin the rear wheel with the motor rather than by hand. Couldn't, of course, but....

Fair bit of smoke out the left side. Valve seals? Might 'splain the lack of oil, too. Grumble!

Ain't sure I'll feel safe on this thing unless I tear into it good and check everything out. Hrm... At least it's safe to hitchhike around here.

I really want that shed, dammit. $2200, but it's past time I had a dry, warm place to work on my junk.

----

Took the exhaust loose but didn't mess with the clamps on the head. Was able to flex it enough to get the bottom bolt the rest of the way out.

Gee, I wonder if this could be why the brake isn't working!



That's off the '80, actually. The hex bolts are turning stupidly hard in the '81, so I am letting it bathe in PB Blaster for the night.
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Old 10-08-2012, 09:30 PM   #94
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Kinda sorta cleaned up at the kitchen sink. That thing sure was hard to get apart. Solid mass of semi-hard greasy goo inside.

Some rust, but the bore looks ok and the return hole was cleanable. The metal bits are taking a bath in the parts cleaner bucket for the rest of the night.

See, if I had my shed with some lights and such and some insulation to keep the hammering and cussing from waking the neighbors, I could have probably had the other MC tore apart now, too, and then could mix-n-match the best parts tomorrow evening!


Leaf screwed with this post 10-08-2012 at 09:43 PM
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Old 10-09-2012, 06:20 AM   #95
MotoJ
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I think the Seller and his wife owe you a couple months worth of home-cooked dinners to make things fair!
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Old 10-09-2012, 04:39 PM   #96
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If I knew what I was doing, I'd be dangerous!

Rubbed a little wintergreen oil into the rubber parts to soften them up, polished out the rusty parts, painted the caliper, reassembled, and put it on the bike.

Then the caliper locked up again. Broke open the bleeder, didn't release. Broke open the banjo bolt, didn't release. Grumble!

Switched back to the other caliper. Farted around trying to bleed a bubble out of the brake line somewhere. Then the return hole plugged up again. Argh.

I think I'm going to have to tear it all apart again and boil everything again and flush out the lines. D:
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Old 10-21-2012, 02:49 PM   #97
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Got the valve covers off yesterday without too awful much prying. Didn't take any pictures, though.

Someone gooped a bunch of gasket sealer in the '81. I very carefully removed all of it that I could from the inside. At one point I dropped a blob down under the cam, but was able to spear it with a dental pick and get it back out. Phew. I hope none of that crap is lurking somewhere getting ready to plug up oil passages.

The valve cover gasket from the '80 is in much better shape, so I am going to put it on the '81.

The valve cover from the '81 has some gold-colored splotches on it, after degreasing it. I wonder if that is from overheating... Hmmmmmm...

Swapped the outer tach drive seal from the '80 to the '81. It's a little flattish, but the one from the '81 has a big crack all the way through it.

Then it started getting dark/cold, and I was weak and covered everything up and came inside. :3

Overall, I think the '80 engine is in better shape. Lower miles, generally seems to have been better cared for without as much PO half-assery, but has been sitting too long instead of running. Once I got the dirt off of the '81, it seems like the '80 is less pitted, too. I paid too damn much for that '81, lol.

I think my plan now is to get the '81 tuned up but not really put much into it, swap the bars, attach the sidecar, and ride the piss out of it this winter and hope it doesn't fall apart, while I rebuild the '80 from the frame up in my cozy warm workshop/shed that is supposed to arrive on Monday. Then I'll move the sidecar to the '80 and store away the '81 while I fool with a '74 CL360 that I picked up for $20, and then drag the '81 back out and do something with it after that. Assuming I don't find more beautiful junk to distract me in the meantime. I /do/ need to weld some body panels into the $300 Wonder Truck and paint it, someday..... :3
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Old 10-21-2012, 02:53 PM   #98
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I wasn't able to push the buckets down with any of my small screwdrivers, and I'm afraid to pry on stuff too hard! I think I'll have to get one of those bucket tools after all. :3

Interesting results checking the valve clearances, though. The '80 is a little tight, but all in spec except for one valve. The '81 on the other hand has 8 of the 16 valves too tight, and the others are really close to the bottom end despite being in spec. More proof in my mind that the '80 was well cared for before it became a bike-in-a-box. I'm half afraid that the '81 may have burned valves. My thinnest feeler gauge is .0015", and I couldn't even fit it under 6 of the 15 valves!!!

There is some very minor rust on the cams of the '80. I figure it'll wear off when the engine is running and be just fine. Hopefully that's not a bad assumption to make......

By the time I get all the shims to get the '81 in spec, I think I might be better off just tearing the '81 down for parts and using the its shims in the '80 motor. -_-'
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