5twins

Yes, the P.O. could have very well clamped it at the bottom and that part is now oval inside. If the tube never gets that far in with...

Well, that happens when the lower was clamped in a vice and is now oval inside instead of round, lol. We had to replace one of the...

Yes, it can be hard sometimes to re-fill a completely empty system and get it to build pressure. I start out using a Mityvac vacuum pump...

Maybe try drilling into the EZ-Out with a small drill bit? Maybe if it catches, it will spin the broken part out?

So, are you saying you ran the compression tests using the electric starter to spin the motor? That would do it, lol.

And what size was in your carbs? The original poster found Z-4's in both his sets, apparently from the factory.

Well, it's entirely possible that the size listing (Z-6) in the parts manuals are wrong, and that the Z-4 is the right size. What size...

Well, even though he's lowered his price, I think he's still asking an awful lot, lol. Keep watching it though, I'll bet he lowers the...

I think I'd match them to the original's length first, then if still too soft, shorten only one one more "loop". Only do one at first...

Yes, sounds like a loose valve. Your idle speed is a bit high. The spec is 1100-1200. You can download any and all the manuals for free...

Well, it definitely looks longer, by 3 or 4 coils, but not an issue if you're shortening them. Here's some "reference" pics ...

I suggest 4 bolting the plate on, and with a sheet of rubber between it and the bracket (section of old inner tube would work).

If the pits in the piston are above the section that moves through the seal, then they would be fine. The section of piston that sits...

I've found my spoke wheels, front or rear, usually require about 1 to 3 ounces of weight to balance them. With the about 3/4 oz. weights...

Going in half turns to adjust and set the mix screws is pretty big steps. I only go in 1/4 turns, reducing that to 1/8 turns when I get...

You need to de-burr the holes when you drill a disc. You don't want to countersink them, just knock the burrs off and that raised edge...

Well, congrats, final carb settings (particularly the mix screw setting)? I had the front brake start squealing on my '78 shortly...

Loosely mount the guide in the cylinder before putting the cylinder on. It will look like this, with the guide sticking out the top and...

Yes, you can just remove the right carb from the angle bracket and replace it, not disturbing the left carb. Take care when removing the...

Like most of the used ones I've encountered, most of those used ones look like they were mounted "crooked". That makes the chain run...

Yep, but consider them a tool investment, something you need and will use in the future a lot. The way I look at buying a tool is every...

Sync the carbs really good (build your manometer). A bench sync only usually gets you close.

The brass bolts are the drains on the 1980 bowls, remove them and the gas drains out. In '81, they changed to drain screws on the side...

No, I think I said about one turn above or below the recommended setting might call for a pilot jet change, so you're still good. But...

Properly adjust and set your mix screws and that will help with the decel popping. Find the "sweet spot" and set the screws at the rich...

Your plugs look fine to me. Just don't forget to look down inside them for the "mixture" or "smoke" ring at the bottom of the porcelain...

OK, those short UNI pods with the rubber endcaps flow little (if any) more than stock. I know this is true because a local guy installed...

I've been meaning to talk to you about your choke, just never got around to it. I think it's operating normally. Both my bikes act...

I can't tell you that for sure. To check how much space you have, you'll need to remove the fork springs and fully compress the forks...

Yes, but it's not iron, it's aluminum.

Well, it wouldn't work with the speedo drive on the right because it would be running/turning backwards, lol. The drive needs to be in...

Since the cases are essentially "glued" together with gasket sealer and there are no really good spots to pry or pound on, I use the...

I made up a couple "special tools" for fork seal removal. First, to protect the top of the lower, a small piece of aluminum angle with a...

Yes, slide the tubes out of the triple tree and swap them, side to side. And when re-installing them, you can't extend them so far above...

Just a couple observations - first, I can't believe you stuck those plastic limiting caps back on the mix screws, lol. Second, you...

Yes, there should be a spring, small washer, and tiny o-ring on each mix screw. The washer and o-ring often remain stuck down in the...

Yes, there's nothing wrong with a well sorted set of stock carbs, so much so that I've never even considered switching to aftermarket...

10 lbs does seem like a lot. Mine all lose air too, front more than rears for some reason. I would consider changing the tube at the...

Yes, most of us think the factory shop manual is best. Most editions are available for free here ...

Yes, we're not trying to talk you out of a 650, just that particular one, lol.

Oh why not? Here's my '83 when I dragged it home. It sat in a barn then a garage for nearly 20 years, lol ..... Even if you don't...

Are you sure you're ready for a kick start only bike?

Yes, on motor seals, I use regular grease, but on these fork seals, I thought the red rubber grease might be a good choice as well...

Oh boy, take a chase van, lol. These are great old bikes but this one isn't really the best choice for a beginner. They require more...

I packed the seals in the '83 full of red rubber grease when I serviced those forks ,,,,,, The seals were good and not leaking so I...

Well, these all need some work, even the ones that look nice, and having one that's a mix of parts from many different years will make...

Yes definitely a "bitsa", lol. Forks and front brake are '76, and the forks look extended. Carbs are a '76 -'79 linked set and the gas...

Yea, but I don't think you're supposed to peen them.

Yes, that's how I do it as well ...... ..... and to hold assembled forks, I use an old triple tree assembly ...... We had to...