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Woodsy · 07-31-2008, 02:52 PM

2BlackDogs...

You might have a point if the wires were undisturbed.... However he changed the spark plugs. In order to change the plugs the wires need to be removed and flexed around.... this will cause cracks to form in the 13yr old silicone allowing the wires to ground out. Its also quite possible the firing order was screwed up as well when he put it back together.

The firing order is 1-6-5-4-3-2

As far as the wires causing a misfire at idle or unloaded... the misfire is probably still there, however the motor isnt under load, so it is alot less noticable. If you really want to get into specifics you can take an ohm meter to each wire and measure the resistance... You are looking for approximately 600 ohms/ft resistance. Less resistance is better! If the wire is bad you will usually see a reading ALOT higher.

No need for the tarp/dark weather voodoo testing method!

There isnt really any great test for the coil... when idling (unloaded) on the hose its going to take along time for a coil to get hot & malfunction vs. an almost immeadiate malfunction under load. If the motor runs great for 20 -30 minutes or so on the hose, then misfires & dies.... its quite possibly the coil

Woodsy

07-31-2008, 02:52 PM	#24
Woodsy Senior Member Join Date: May 2004 Location: Weirs Beach Posts: 1,966 Thanks: 80 Thanked 980 Times in 440 Posts	2BlackDogs... You might have a point if the wires were undisturbed.... However he changed the spark plugs. In order to change the plugs the wires need to be removed and flexed around.... this will cause cracks to form in the 13yr old silicone allowing the wires to ground out. Its also quite possible the firing order was screwed up as well when he put it back together. The firing order is 1-6-5-4-3-2 As far as the wires causing a misfire at idle or unloaded... the misfire is probably still there, however the motor isnt under load, so it is alot less noticable. If you really want to get into specifics you can take an ohm meter to each wire and measure the resistance... You are looking for approximately 600 ohms/ft resistance. Less resistance is better! If the wire is bad you will usually see a reading ALOT higher. No need for the tarp/dark weather voodoo testing method! There isnt really any great test for the coil... when idling (unloaded) on the hose its going to take along time for a coil to get hot & malfunction vs. an almost immeadiate malfunction under load. If the motor runs great for 20 -30 minutes or so on the hose, then misfires & dies.... its quite possibly the coil Woodsy Attached Images __________________ The only way to eliminate ignorant behavior is through education. You can't fix stupid.