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Air Fuel spark but still no start

PostPosted: Tue Apr 03, 2012 11:20 am
by xjm92x
okay guys my eg8 don't wanna start this is all shes doing i checked the spark plugs they are black on the tips

she turns over and sounds like its starting then starts puttering i also think i hear a thudding sound coming from the intake

all four plugs look like this
Image

http://youtu.be/VmClKoBBKiY

PostPosted: Tue Apr 03, 2012 2:23 pm
by andyc
so you have tested for spark?

PostPosted: Tue Apr 03, 2012 2:52 pm
by xjm92x
i Just changed the spark plugs and she started :thumb: BUT why do they keep getting the DARK deposits, ive changed them twice in the last year

PostPosted: Tue Apr 03, 2012 5:24 pm
by PhantomEJ1
Sounds like you have a bad igniter or coil or both. Try to find another dizzy to try out.

PostPosted: Tue Apr 03, 2012 5:27 pm
by andyc
did you see his reply that it runs with new plugs???

PostPosted: Tue Apr 03, 2012 5:40 pm
by teal_dx
If they keep getting black tips, then you may have too much fuel. That could be an O2 sensor on its way out. Or weak spark not burning all the fuel.

PostPosted: Wed Apr 04, 2012 12:00 am
by xjm92x
i was told that i might have to adjust my timing? would that be the belt or the dizzy

PostPosted: Wed Apr 04, 2012 2:06 am
by teal_dx
Assuming your mechanical timing ( timing belt) is correct and everything is at top dead center, you should get a timing gun and adjust your dizzy. :thumb: