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Hi guys, I have an XS650 from '83 with electric ignition. A few months I did an annual check and corrected valves and timing. Recently I start noticing that my left cylinder is backfiring a bit (especially when running idle or when decelerating). Also when holding my hand behind the exhaust I...

I noticed these intake holes in my air filter and they seem to bypass the filter itself. The previous owner seem to have closed them provisionally using caps but I guess I lost one. The bike runs fine though. However, I don't like the fact the filter itself is partially bypassed. What is the...

A few weeks ago I removed my ignition (Boyer Bransden) on my XS650SJ ('83) because it's bleeding oil due a failing seal. I didn't know putting it back was influencing the timing (still learning). After putting it back, it bike was running fine although the RPMs went down a bit when running idle...

Hi, first post here and happy to see the activity of this forum. I have a 83' XS650SJ with a Boyer Bransden ignition that runs fine when warm. A few weeks ago my bike started acting strange as it stopped running while driving and in most cases after rolling out with the engine turned off it...