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View Full Version : Kawasaki fc420v - won't start


chev71
07-24-2006, 04:10 PM
no spark. tested key switch & all safety switches, all operate correctly.
Kawasaki fc420v on a Scag sw48-14ka

Carriage House
07-24-2006, 04:16 PM
Depending on how old the machine is and how you store it, I would check the coil. 9 times out of 10 thats it. You can check it on a meter or just swap it out with another making sure you clean up the contact points and gap it correctly.

Hope this helps and I'm not stating the obvious.

Kris

Jim@MilkyWay
07-24-2006, 04:18 PM
no spark. tested key switch & all safety switches, all operate correctly.
Kawasaki fc420v on a Scag sw48-14ka
Do any of you guys, or not guys know about voltage checks on the low voltage side of coil, to see if you _should_ have fire when engine is spun?
I have always been leery of checking voltage on a device that can fry my Fluke and have, therefore never experimented.
I bet one of you can dig up a maintenance manual procedure to tell me what I am looking for.:weightlifter:

chev71
07-27-2006, 04:34 PM
Mechanic in mower shop said to disconect the ground wire at the coil then try to start it. If I get no spark, then the coil is bad. I changed the coil and I still have no spark. The machine is 6 years old, a pull start, does not have an igniter and it is not used comercially. Is there any other part on this mower that will stop it from getting a spark. It is also stored indoors.

MowerMedic77
07-27-2006, 05:07 PM
Just curious what are you using and how are you testing for spark?

Restrorob
07-27-2006, 08:07 PM
does not have an igniter .


I looked up four FC420V engines and they had igniter's, What is the spec. number off your engine ? There were too many to check all.

chev71
07-28-2006, 12:11 PM
Scag model# SW48-14KA Serial# 4000649 Kawasaki Code# FC420V-JS09 E/NO FC420VD29800 These are the numbers from the mower deck and the engine. The mechanic at the shop said there are two different coils for this engine and he says this one may be the wrong one. He will not have the other coil until tuesday.

Restrorob
07-28-2006, 01:11 PM
There is only one coil listed for your spec. engine, Part # 21121-2086 and there are no superceded or prior numbers for this part. He must have looked up the wrong spec. and sold you a coil requiring the use of the igniter.

chev71
07-28-2006, 02:45 PM
Thanks Restrorob, The coil part number he gave me is 21121-2070. Hopefully tuesday I'll have the correct coil and be up and running again.

Restrorob
07-28-2006, 06:41 PM
The coil part number he gave me is 21121-2070. .


Yep, Thats what happened, That coil is for use with the igniter. Here's hoping he's getting the right one this time.

chev71
08-05-2006, 12:06 AM
It's friday, and I received the correct coil, installed it and it started on the first pull (same as it always did). I would like to thank everyone for their help, and Restrorob for the correct part number. My mower is running great again.

Restrorob
08-05-2006, 12:54 AM
Good to hear ya finally got-er go-in .....

TYCINC
07-08-2009, 06:26 PM
i am having the same poblem.I have another motor with a coil that takes a igniter ,can i swap coils and put the igniter on it? I have the wiring harness that goes with it. Is there any thing else I would have to change?

Restrorob
07-08-2009, 08:30 PM
I don't know of any reason you couldn't do this swap, But.... There may be a difference in the flywheel timing causing a flywheel swap as well.