rear plug coil ?????

General spannery stuff
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OZRaptor1000
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rear plug coil ?????

Post by OZRaptor1000 »

Loving my raptor in this awesome QLD weather, but having an issue with the rear plug missing. Replaced both plugs with CR8EK ( Cagiva spec ). At idle rear cylinder fires ocassioanally - at 100kph ( 4000rpm) is no dramas, from prolly 3000rpm up she goes like stink :woot: . Tried fiddling with coil pack wires but I dunno really. Downloaded the english workshop manual (thankyou to whoever put that on this forum) but I am not smart enuff to figure this out. has anyone else had same problem? Temp doesnt matter same with choke on a lil or a lot. Replaced relay that runs coils too.
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Crap Tartan
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Re: rear plug coil ?????

Post by Crap Tartan »

Test the rear plug lead/ coil system by holding plug against engine earth while you try to start engine on button. Sounds like something is breaking down back there, any signs of damage/heating of the lead. Are all coil connections good? Is the connection at top of spark plug good?
Hard to diagnose without being there........................
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OZRaptor1000
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Re: rear plug coil ?????

Post by OZRaptor1000 »

changed coil & lead from a mates Raptor & its still doing it. Checked & cleaned connector that powers coil. Getting quite confused right now/
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Miz
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Re: rear plug coil ?????

Post by Miz »

Have you run some injector cleaner through it?
Have you checked TPS?
What temp are you showing when running?
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OZRaptor1000
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Re: rear plug coil ?????

Post by OZRaptor1000 »

swapped over ecm & still the same.
Previous owner has replaced fuel pump & not cleaned rust & rubbish & moisture from tank & have figured out there is muck in the lil screen in injector. Ran some pretty serious fuel cleaner through it an its a bit better - will have to put up with it till winter when I'll pull pump out of tank & see what kind of disaster is in there - no fuel lights work either. Will remove & clean fuel rail & send injectors off to be professionally done.
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