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No spark john deere 777

Both cylinders not firing

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 10865 Answers

SOURCE: john deere 420 trouble starting getting gas and

The engine needs air, so be sure the air filter is clean. If it is not, replace it.

The engine needs spark. Replace the spark plug and be sure that the battery has a complete charge.

The engine needs good fuel so be sure the gas is newly purchased, not gas that has been sitting around for months.

Posted on May 19, 2009

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  • 9 Answers

SOURCE: john deere mod 345 no spark

first find the wire that is grounded to mower to ignition
and check that it is isolated if mounted on some plastic and disconnect it
if it runs to start switch check wire for cuts also
most common problem is the coil located under the top plate held on by 4 /5 screws on sides.
remove top and follow plug wire back to coil

you can clean the curved edges of coil that are against motor {magneto} with sand paper and clean mag
remove plug and lay threads securely agains frame and check for spark {hold by wedging not by hand as you can get a jolt!}

Posted on Aug 20, 2009

rwvanlue
  • 486 Answers

SOURCE: I have a John deere 317 tractor that does not start.

We will be testing for voltage to the points, coil, engine to tractor wiring harness, ignition switch

Tools needed:
volt meter to read 12 volts, or test light

1) with the points open: is there voltage at the connection wire at the points
If yes; adjust points to .020" and try to crank engine and check for spark
*** you may want to determine if condensor is connected to this wire also
if no
2) check point side (neg or - ) of coil for voltage
if yes, engine should start
if no
3) check for voltage at the + side of coil
If yes, coil is bad
if no
4) check wire connector from engine to frame wiring harness
if yes; engine should start

if no
5) check wiring on the back of ignition switch
if yes; engine should start

if no
6) check that ignition switch RED or BATTERY supply wire has voltage
if yes; switch is bad

if no
7) check supply wire and circuit breaker connected to the battery side of the solenoid
if yes; engine should start

if no; circuit breaker could be at fault or wire connector at battery supply

Posted on Nov 08, 2009

  • 13 Answers

SOURCE: john deere lane rider la135 wont start.

You don't mention if they are on and are bright or are week. Do they dim when trying to cranks the motor? I would start with checking the ground wire at the battery and where it connects to the frame. Make sure both are clean. From there, have the battery tested and then the starter.

Posted on Jun 10, 2010

  • 10 Answers

SOURCE: Have John Deere 165 riding mower. Strong crank,

Has it been outside? May be water in the fuel.

Posted on Jul 25, 2010

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