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Not a poorly balanced tire, but a bad tire. A good tire with no balance won't do that, but may cause some vibration. A bad tire, meaning the carcass of the tire is damaged or coming apart, will cause...

The stock CV carb is very easy to work with. A good first step in tuning is to remove the plug over the idle mixture screw so that you can adjust it. (Although on the XL carbs that screw is well out...

The old (cast iron) Wagner master cylinders for the shovels and pans were the same for drum and disc brake systems, except that the residual pressure valve is not used on the disc brake applications....

Either the relief port in the master cylinder is plugged, or the piston is not clearing it when at rest, or the hose is collapsed on the inside. If the piston(s) are stuck in the caliper from...

In my opinion and experience, the Keihin jet kits are the only way to go. They are sold by various distributors and are model specific. I do not like the Dynojet kits, and have removed those parts...

First thing would be to pull the kick cover on the right side of the transmission and check out the release bearing, pushrod, and lever. That transmission had the small release bearing from stock,...

By all means use them if they appeal to you, nothing wrong with that.

Jim

If the motor is in good shape, the oil pressure will be the same anywhere on either rocker box, so put the gauge where you wish. It's a common galley. And the oil lines you are planning to use are a...

Your spacers are upside down. They are just stuck in the disc. Pull them and turn them over. You have a stock spring pack and it should prove to be adequate. For the 3/16 measurement just use a steel...

The tubing spacers are separate parts dropped over the long studs. They are thin and easily damaged. Barnett offers a new set that are a little more robust, and have a collar of sorts where they fit...

The problem is probably burrs on the sprocket shaft splines. A new rotor is a snug fit, and if the shaft is burred up, it will be a force fit. DO NOT file on the rotor. You can clean up the shaft a...

I like hopping up the H-D evo because you can make big gains in power relatively easy.

BUT, the '91 - '93 cases are notorious for breaking between the rear cylinder and rear tappet block if...

You need to go back through it again, starting with the clearance between the pressure plate and the outer plate of the clutch pack. If you don't have enough travel or clearance there, you can't get...

Not to cause too much thread drift, the original question was about the spacers, etc. required to install the HD brake. You need a knuckle parts book. That will give you an illustration of all the...

One of my friends has one, and upon initial set-up, it didn't work well at all. One problem is that the shoes did not return reliably. I turned the cams 180 degrees, and that seemed to help, but...

The additional pictures make your issue clear. You do not want to use the XL axle adjusters, you want big twin axle adjuster screws as found on rigid frames and round swingarms (which are fine...

On the drum brake XL swingarm, the adjusters go inside the axle plates. That allows the boss under head on the axle to fit the slot in the swingarm, and the stepped washer fits outside of the axle...

The point I was trying to make is that if the alternator is overcharging, that might damage a coil (and possibly the module for that matter).

Jim

Your ignition module should not be hurting the coils. The correct coil for a Dynatek 2000 is 3 ohms, so you have that right. There are a lot of poor quality coils on the market now. What is your...

Because of the added stroke (more leverage), an 80 will pull your gearing much better than a 74 will.

Jim

9 fins is not an indication of an 80cu.in. cylinder. All the new pattern cylinders had 9 fins, both 74 and 80.

Yes, measure the stroke and you will know whether you have a 74 or 80. At this late...

You 74 will like an overall drive ratio of 3.20 or lower. They are dogs when geared that long.

My opinion, of course.
Jim

Aye, there's the rub. Especially on a pan. Travel is limited until you do a good bit of prep work as Jesse has shown several times.

Jim

Andrews J will make a modest difference compared to the stock H. Should be no valve/spring clearance issues in a pan head.

Jim

Your bike is geared very long for a 74cu.in. motor. Therefore, the stock H cam will be hard to improve upon. If you would shorten up the gearing you might like a cam like the Andrews A2. It adds .06...