Spark plug opinions

[gasman556]

I have a kohler commander (23?) hp engine on a Deere. Around 650 hrs and this is the first time changing the spark plugs. Or second. Anyways, I was hoping to get an idea what the small engine gurus think of how they look. TIA.

 

[RoadDukie]

Two words; Worn Out.

 

[Analog-1]

Make sure you properly gap the next set.

 

[SC Maintenance]

For 650 hours they look decent to me. Time for new but decent tan insulator.

 

[Jetronic]

I have a kohler commander (23?) hp engine on a Deere. Around 650 hrs and this is the first time changing the spark plugs. Or second. Anyways, I was hoping to get an idea what the small engine gurus think of how they look. TIA.

View attachment 239353

The plugs look fine and useable, but I doubt they were gapped the same

 

[oil pan 4]

Regap and run'em.

 

[ripcord]

Color looks good so air fuel ratio is close enough. Doesn't appear to be burning much oil.

The center electrodes are not significantly rounded at the edges so can run longer, but make sure the gap is not wider than spec.. probably about thirty thousandths... so
as not to stress those fragile Kohler coils.

 

[97prizm]

New Iridium plugs, pre-gapped .

 

[gasman556]

thanks again for all the replies! I got new OEM “Deere” (champion) spark plugs and gapped to 0.30” installed to good n tight torque (torque wrench wouldn’t fit into odd body housing shape).

 

[Cruisin'n5thgear]

Gudentite, the old German specification. Should work just fine

 

[ripcord]

Gudentite, the old German specification. Should work just fine

How many ugga-dugga's does that translate to?

 

[Cruisin'n5thgear]

3.1415, and I'm proud to say that my ugga dugga's translated into near perfection when I torque wrench-checked the nut on an inertia starter that I was rebuilding.