Question about 1972 Honda CB 250

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I just purchased a honda cb250 1975 no spark

I just purchased a honda cb250 1975 the motor cranks but there is no spark

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If there is no spark your points are probably dirty or just grounded out. Try a new points and condenser set. Install the points carefully so the new set does not ground. I assume you already tried new spark plugs and spark plug caps.

Posted on Jun 07, 2010

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I would start with new plugs as they are the cheapest part that could be gone. buy iridium plugs if you can afford it as they ignite the fuel much better. hope this helps

Posted on Jun 30, 2010

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Posted on Jan 02, 2017

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Make sure battery has a full charge. Cranking is starter motor action, meaning the starter motor is cranking the engine. If the starter motor won't crank the engine, then we need to test starter motor wiring circuits.
If it cranks good, but, won't start, have a helper crank it while you check for spark at the spark plugs, where applicable. If spark everywhere, use a gage and check proper fuel pressure and also, check for fuel injector pulse, engine cranking.
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Next things to check are fuel and spark, remove a spark plug and with the wire attached crank the motor, if you see spark in the plug then it's not a spark issue and probably a fuel problem. If there is no spark could be bad plugs or wires, or distrubitor cap. To check fuel remove injector cover and crank motor, if there is no fuel coming out then check fuel filter, fuel pump.

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