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The motorcycle user forum sohc4.net is being held captive at the mercy of a handful of unqualified "experts" who as the queen said, insist that you "believe six impossible things before breakfast." Impossible because they're untrue, made up, unreliable. While many if not most enthusiast forums exhibit some measure of caustic malevolence, this site's content is especially egregious in that so many owners of these machines arrive at their virtual doorstep each day, technical waifs really, only to be led even further astray by forum authorities pretending to be experts but in reality dealing in entirely extemporaneous advice.
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There are multiple errors here. And this is from one of the authorities of this particular forum. And yes, Mark and I have communicated. Go here for a critique of Mark's CB750 maintenance book. First, the factory cast iron valve guides are the longest wearing of any type you could possibly use, much more than any bronze guides. Second, no vintage Honda four-cylinder was ever manufactured that needed or benefitted from tetra-ethel lead. And oil in the gas? First-semester votech students know better.
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This is incorrect. The slot in the cam chain tensioner of a CB550 is indeed there for turning.
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So the engine has to be machined to make the head gasket not leak, huh? Use quality head gaskets.
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"Doesn't generate enough power to run these coils." This is untrue.
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This is from another sohc4.net "authority" whose username is twotired.
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The CB650 does not have CDI. It takes more than knowing the primary resistance to determine an ignition coil's output voltage. Output voltage is the potential (and theoretical) peak, not what the plugs will consistently see. And, recommending carbon resistive plug wire for a Honda is bad advice.
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No professional engine builder uses gasket kits.
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"A nightmare to rebuild"? These are the easiest carburetors of all the 70s fours to rebuild. Good performers too. And, "normal behavior"? Not hardly.
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There is so much misdirection on the sohc4 forum. Just a massive amount, like an alternate universe, a rebel outpost. It's not that they have never been confronted with reality; no, they have. But they oppose it, mock it, scorn it.
Forum readers are encouraged to not worry about their 100-psi engines, they're really in much better condition than the compression tester indicates, this person insists. Any decent tool will return the same numbers as the factory's, If the engine is in good condition. Surely someone has glommed onto the fact of valve recession on that forum?
Instead of calling Honda's system bad and insisting that you can't even put a high performance ignition coil on a CB550 without the battery going dead, why aren't they instead considering the Walmart battery and the two dozen fifty-year-old canon plugs and the Chinese charging systems parts?
It's the leadership that is responsible, that sets the tone, the ethic, of the group. They're tin gods, very vocal individuals pretending to be authorities but in reality virtually clueless.
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