Recent content by Cash

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    backfiring/popping mid throttle

    When I first got the bike I ran it with the mufflers off and it didn't seem to like it, backfired quite a bit if I recall. I haven't had a chance to work on the bike yet but when I do I will check for air leak around the intake boots (although I doubt this is the case I'll double check)...
  2. C

    backfiring/popping mid throttle

    Thanks for the help, I'm not sure if it is the stock setup. I just picked the bike up a couple months ago. It looks like the stock 4 into 4 but I can't confirm that. The mufflers are the universal shorty ones that I think Emgo makes. Ill throw a picture up. I also just re packed the mufflers...
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    backfiring/popping mid throttle

    Whats up guys, looking for a little direction from the more experienced here. I have a 1981 cb750c, ran like crap when I bought it, had to do some work to it, so I replaced the plugs, re packed the mufflers, replaced seals in forks, replaced intake boots, air filter, and had someone clean and...
  4. C

    popping/backfire mid throttle

    Whats up guys, looking for a little direction from the more experienced here. I have a 1981 cb750c, ran like crap when I bought it, so I replaced the plugs, re packed the mufflers, replaced seals in forks, replaced intake boots, air filter, and had someone clean and sync the carbs and now the...
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    1981 cb750c engine problems

    Did a compression test, all cylinders were the same, around 131 psi. The test was done on a cold motor. Here is a pic of the plugs. From left to right is cylinders # 4, 3, 2, 1. They seem to look ok except for cyl #3 which was soaked. Also Cyl #3 was loose, I unthreaded it by hand, although I...
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    1981 cb750c engine problems

    Been lurking around this site ever since I bought this bike (1981 cb750c). Great site with a ton of information! I bought the bike from someone who was a member here who recommended the site. First motorcycle I've ever owned but have been riding and working on dirt bikes for ages. a little...
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