Question about 1995 Honda VFR 400 R NC30

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My bike has been standing for just under a mounth but now it doesnt start so i cleand my spark plugs now it just bake fires now and then

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Plugs dont get affected by sitting around, but carbs do, one month should not have caused a problem though. make sure petcock was off and fuel didnt leak into ingine, then its good to change the oil. draining the fuel tank and filling with some fresh high octane fuel will help. also may be carbs are a bit dry, turning over engine will vacuum fuel into them after several cranks

Posted on Sep 05, 2009


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Okay, let's have a look at it. Say Ahaaa.
The probable cause of the problem is not the spark. Get a fresh set of Stock NGK spark plugs, ground the plus to the engine, and check each cylinder for spark as the starter button is pressed for 3 seconds or so. I will wager that the spark is present.

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Without CKP sensor,will a bike start? if there is no firing in the spark plug,what are the reason of this?

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If you are not getting any spark either:
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3. CKP sensor is faulty. Use a multimeter to check the resistance of the coil windings. From memory should be about 300 - 500 ohms.
4. A wire is shorting out somewhere, or there is a bad ground conection.
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Hi there and thank you for using FixYa!

Yes this is a common problem with bikes having dirty spark plugs and poor fuel quality. What you do is to remove the plugs, clean it well.. or better, replace it with a new one. Then if it still doesnt start, pull the choke knob for a while. start it.. if it still doesnt start. Open the carbs to check if there are any dirt blocking the jets. Blow the holes with compressed air. Assemble and replace it back. Start. if it still doesnt work, check for the cable, make sure it has current firing to the spark plug.

let me know if this helps..

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Hi there, try this sometimes the stand switch can make the bike not work if has got rusted at the back.and check or replace the coil., then check if you are getting a spark from the plug by putting the spark plug on top of the head. The next thing is if the bike turns over but not fire up, you need to strip down carb and clean jets, also check petrol value under the tank If you have a book it will go through this step by step. good luck.

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