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Disclaimer: Unless the DOT is alright with you putting a bulb in a reflector not made for that bulb, DIY style, do this at your own risk So, just got my first bike, an XS400 Heritage Special (with a 360 engine in it, my luck, but it was free can't complain) and have been upgrading some things...

Sorry for such a long gap on updates, it's either been raining, hot as hell outside, or I've been stuck at work, so progress has been relatively slow. The bike has been tuned and runs very well at this time. I have yet to finish adding a cycle endorsement to my license (everywhere is booked up...

Thanks for the link on the petcock, I'll probably pick one up. Though mine "works fine", I don't need the annoyance of having no viable shut off when a carb needle decides to not seat and leak all over. About the cylinders firing at the same time, it was a friend who used to have an xs650 who...

I'll keep an eye on it and may remove the breather, I haven't been on the bike yet due to weather and not going out to sync the carbs yet. But it is a good point that any tiny entrance into the crankcase would be a source of air entry into the vacuum system, and there isn't any real pressing...

It did cross my mind that that negative pressure is a lot stronger on the engine side of the carbs vs the filter side. But I have also read a few articles about the benefits of pulling a vacuum on the crankcase, like reducing the risk of blowing a gasket out and subsequent oil leaks. I have...

I've been working on the bike for a while and think I fixed most all of my problems. The high idle and hesitation to start was because the vacuum petcock apparently doesn't work any more and was causing a direct vacuum leak. If I can't find a cheap replacement, I'll just cap it off and use the...

Back with some updates and questions! Carburators came in the mail yesterday. I had the day off and worked to de-rust the gas tank and start the project. First off, the bike decided to seize up over the winter. My heart sank, but after an hour with PB blaster in the cylinders it freed up...

That's funny, in my learning journey about this bike I was reading somewhere that they made the change from points ignition to electronic ignition somewhere down the model line. When I start tearing into the electronics in the next few weeks I will survey what kind of system one of the previous...

Engine #1T6-005349

Thank you for all the information. I know this bike will cost me much more than what it takes to get it running, I've got a 1982 Honda ATC 185s, and have obtained a few old machines to fix and get attached too I mean sell. I have known my boss for years and trust that the bike was running when...

Hello, first post on the forums and was looking for some advice. Last fall I obtained my first street bike, 1982 xs400 heritage special. It was my boss's, she rode it a little bit a few years ago, had a kid, and quit riding it. It sat in the garage for 4 years and her husband recently took the...