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Number 4 not firing

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kwaka
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Number 4 not firing

#1 PostAuthor: kwaka » Tue Jun 21, 2011 7:12 am

G'day fellas, took the bike for a lap around the block the other day but number 4 cylinder wasn't firing. when it started it seemed ok but down the road it started to miss and then nothing at all. I checked fuel but that was ok, but when i removed the plug to check for spark there was a weak spark and then none.

Where should i check next?
Cheers

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PAULJAC47
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#2 PostAuthor: PAULJAC47 » Tue Jun 21, 2011 7:18 am

Swap leads one and four over,if four fires then but not one,prob means its your ht lead or plug cap faulty..Cheers Paul J
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."
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kwaka
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#3 PostAuthor: kwaka » Tue Jun 21, 2011 8:06 am

Thanks Paul, but if i swap leads over would it cause the firing order to be out?

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Mark Tiller
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#4 PostAuthor: Mark Tiller » Tue Jun 21, 2011 8:27 am

1-4 & 2-3 fire together, so it will run OK

Spark plugs are much more sensitive these days so might be worth looking there as well

kwaka
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#5 PostAuthor: kwaka » Tue Jun 21, 2011 9:31 am

OK thanks, i'll give it a go.


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