Question about 2005 Honda CB 750

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1977 cb 750 honda start and idle seem ok but bad loss of power

Half power on acceleration , already did major tune up procedures could I
need hotter plugs they seem to keep fouling

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Check if the points plate is within the marks, it sounds as if the ignition timming is behind ( r e tard).
Recheck the valve clearance and the float level in the float chamber of the carbs, synchro the carbs and reset the air - mixture .
Hope this helps!

Posted on May 24, 2009

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Considering the age of the machine, I would be suspicious of valves and lifter clearances..
Acceleration at speed requires the delivery of power, which increases cylinder pressures. Provided your plugs are good, the next thing to check would be compression. If it is low, it's time for a major tune-up.
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Jul 28, 2012 | 1999 Honda VF 750 C Magna

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I need a schematic of the timing start posion for {{{1977 Honda CB 750 FOUR K}}}. It does exist but it is not listed in this sights product list, so I've posted it as a 2005 CB 750. I was cleaning the...

Ask and ye shall receive. Go to this site and you can download a free PDF service manual. The site may take up to 20 seconds to load the complete list of manuals. Most all of the manuals are in English but some are not. There is no way to be sure without doing the download. You can always delete it if in a foreign language.
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