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Old 13-09-2007, 01:17 PM   #1
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missfire

engine has developed a slight (slight lol)
missfire
struggles to initialy pull away, and then pops all the way up to around the 6000rpm mark
ive tried new plugs but that hasnt seemed to solve anything and im fitting replacemet leads an will test them on sunday,
this is probobly way to breif a description to get much feed back
but if you ask any questions about symptoms i wil do my best to answer them as accuartely as possible
cheers chris
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Old 13-09-2007, 05:13 PM   #2
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Popping or backfiring certainly sounds electrical.
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Old 13-09-2007, 06:16 PM   #3
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yea, thats what burty (am i allowed to say his name???) said
im hoping its the leads
but failing that
it going to be either the trigger, stator, one (or more) of the coil packs
or a bad earth
is any one good at fault finding out there???
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Old 13-09-2007, 09:17 PM   #4
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Wot ya mean pops? Do you mean the engine coughs/spits back from the carbs i.e sounds like its sneezing?
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Old 13-09-2007, 11:07 PM   #5
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its difficult to describe
you notice it far more when our not on the boat
when i say popping, its almost the sounds you get when popcorn starts to ...ummm. pop
not a good description i know, but thats the best i could do
it doesnt sound like crabs because theres no great sudden oss of power at any point, apart from when under load when pulling away
its just down on power overall
thers no "sneezing or any thing at idle either
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Old 13-09-2007, 11:57 PM   #6
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sounds like bad mixture to me, what size jets are in it?
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Old 14-09-2007, 09:42 AM   #7
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when i took the plugs out, they were quite oily
the engine btw is stil oil injected
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Old 14-09-2007, 03:07 PM   #8
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Could it be a possibility that a coil has gone south and jumping the spark onto the block?
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Old 14-09-2007, 07:57 PM   #9
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Quote:
Originally Posted by freedom View Post
it doesnt sound like crabs because theres no great sudden oss of power at any point
WTF is "crabs"?
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Old 14-09-2007, 09:15 PM   #10
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Quote:
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WTF is "crabs"?
Here you go.
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Old 14-09-2007, 09:42 PM   #11
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Does the tell tail spit when it pops or is it a constant flow?
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Old 14-09-2007, 10:14 PM   #12
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Quote:
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Here you go.
Very good!
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Old 15-09-2007, 12:16 AM   #13
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Country: engalnd
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lol carbs
and i dont think the tell tell spits,
thers no, water and then no water, then water again if thats what you mean
coil is a distinct possibility
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Old 15-09-2007, 10:09 AM   #14
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run engine at dusk/dark on the muffs you should see and hear the spark jump if its the coil earthing
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Old 29-05-2011, 10:10 AM   #15
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old thread i know, but can you remember the problem here? as i seem to have the same problem, and have been through everything but still cant find the fault.
cheers
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