2000 Suzuki DF 70, 4 Stroke: NO ignition in two cylinders

miceab

Recruit
Joined
Dec 20, 2012
Messages
1
Hello
I was done fishing and on my way to the dock, going about 4000 RPM, NOT Full Throttle, suddenly the RPM drop to about 2200. Check the gauges, no buzzing, no blinking. I stop the engine and start it again. Idle OK, but Full Throttle no more than 3000 RPM. At home, I check : oil OK, Compression OK, Water p & T OK.
While idling, I pulled the spark-plug cords one-by-one. I find out that No 1&4 doesn't work!!!!
I switch the Ignition coils Input Plug and No 2&3 went off!!!
I checked, in the limits of my understanding, according to the Repair Manual, all the Wiring, Relays, Resistance & Voltages values and find NOTHING wrong!!!
I'm hoping that is not the EMC , a New one is very costly for my income!!!
PLEASE ADVICE, any IDEA is very welcome. It will be my Christmas present from you, who ever you are!!!
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
8,871
Re: 2000 Suzuki DF 70, 4 Stroke: NO ignition in two cylinders

Check the manual for testing all of the inputs to EMC and the out puts.

If you have good inputs to EMC but bad out puts from it then you have a problem with it.

More that likely it is a bad input, but will not know until you test it all
 
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