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Thanks 5twins. I will check it out.

The smallest brake cylinder hone available at all the auto places in my neighborhood is 11/16". Will this work on an OEM MC on a XS650B? When I measure the cylinder bore it looks close to 1/2"to me.

I'm very interested in the idea of a single steel brake line. My rubber lines are definately 10+ years old and in questionable condition. There is an overwhelming amount of general brake information in the tech section of this forum but I didn't see any specific info on how long it should be or...

Thanks guys. The info helps a ton. Judging wear is tough without much experience. If I followed my ol' Clymer manual, I'd practically have to replace the whole bike every four years or 2,000mi. I bought new tires 10 years ago and have only put on a couple hundred miles since then so they look...

I wasn't getting any bites on this thread so I re-posted here

I am trying to get a XS650B with 16,000mi up and running that has not been driven (regularly) for about 20 years. I finally got the thing tuned enough to start driving it around the neighborhood and noticed that the front brake was binding. Upon closer inspection, there was some sludge build-up...

Oops! Here's the pics. Again, any help would be awesome.

I am trying to get a XS650B with 16,000mi up and running that has not been driven (regularly) for about 20 years. I am on a shoe string budget but know to slow down for a brake job. I finally got the thing tuned enough to start driving it around the neighborhood and noticed that the front brake...

If my memory serves me correct, when I backed out from 3/4 to 1 turn the backfiring worsened on the decel. I have no idea why and will double check so that I am not confusing my directions. Having said that, moving in to 1/2 total turn out on each side sounded better. As for the butterfly...

Alright, I just spent a couple hours pulling the carbs to take another look and am only now seeing the last couple posts on the clear tube method so I have not yet run the test. Let me restate where I'm at: I have original/oem parts throughout (127.5 main, 4n8 needle, 45 pilot and am using the...

10-4 5twins. I cleaned the old ones and use the new one as fancy tooth pics for guests.

Thanks again. Despite this hiccup, the bike is still running the best it ever has for me. Before I rip into it again I wanted to pick your brain a bit more. When I was previously adjusting things, I loosened the throttle cables - so, I don’t think that was contributing to my problem. I will...

XSLeo, I think I may be doing something wrong on your dead cylinder method and would greatly appreciate some more input. I do have stock carbs/jets and ignition. Probably getting a bit ahead of myself, when I start with the factory 3/4 mix screw setting and pull the opposite plug, the left side...

Thanks guys! I can't thank you enough for the feedback. I am really excited to get this thing dialed in and will keep you posted.

As a follow up to this thread, the Pine-Sol worked well. I recently fired it up and the bike seems to be working so far. I enjoyed the fact that harsh chemicals were avoided rubber gloves weren't required. Chem dip probably would have worked as well, but Pine-Sol is only 1/3 the costs. Good luck...

My 1975 xs650b is getting real close to running well. I just worked my way through most of a major tune-up and it still is running a bit rougher than I'd like. I'm wondering about the fuel/air mix screw setting on the original B38 carbs. The original manual calls for "1 3/4 turn" while all the...

Alright, everyone here seems to swear by the Pine-Sol method so I will give it a try...

Berryman® Chem-Dip®

Alright, as a follow up to this thread I ended up changing both the electric starter oil seal and the gasket at the drivetrain cover. Both looked like they could be original. Anyone reading this with the same symptoms might save themselves some guess work and just replace both. I ended up...

I just got a carb all ripped apart and ready for a chemical carb cleaner dip. I removed all plastic and rubber with the exception of the plastic overflow drain on the bottom of the float bowl. I believe this is a pressed fit and looks like I will wreck it if I try to take it off. Has anyone else...