BigBendFishing.Net

What's the difference between a Champion L77JC4 and a QL77JC4, or is it the same critter?

I consider them the same "weather they are or not", and it's worked so far

The QL77JC4 is a resistor plug. The L77JC4 is not. They are the same heat range plug. If your motor requires a resistor plug, you need the Q. If your motor doesn't require a resistor plug, either will work fine.

Thanks guys. I knew somebody on this forum would know what I was doing better than I did.

tin can wrote:The QL77JC4 is a resistor plug. The L77JC4 is not. They are the same heat range plug. If your motor requires a resistor plug, you need the Q. If your motor doesn't require a resistor plug, either will work fine.

Old timer, smart aleck

wevans wrote:

tin can wrote:The QL77JC4 is a resistor plug. The L77JC4 is not. They are the same heat range plug. If your motor requires a resistor plug, you need the Q. If your motor doesn't require a resistor plug, either will work fine.

Old timer, smart aleck

Yup. I've bought a thousand of um.

For what it's worth, if you own most any older OMC outboard (pre 1988), 40 HP or larger, it will specify an L77J4. At some point in the mid 80's the designation changed to L77JC4. That's when Champion added copper to their plugs. Also, if you do a lot of idleing/trolling with an older OMC using the L77JC4, carry an extra set. They will foul. OMC used to have a great tech support. They had an 800 number, and would help you with any problem.

Yup, I'm old. Some folks would agree that I'm a smart aleck. I prefer to think of myself as experienced, and having a head full of useless information.

tin can wrote:Also, if you do a lot of idleing/trolling with an older OMC using the L77JC4, carry an extra set. They will foul.

Yup, they sure will. Which brings us back to the original question...and is something I wish I had thought of before last Saturday.

Note to self: Put spare sparkplugs and sparkplug wrench in boat. Tie wrench to boat while using.

Next question: Why can't they put the sparkplugs on the front of the motor?
Never mind, think I figured it out. The same guy that designs outboards, must also makes the tools to work on outboards. <sploosh>

Cheap socket set in a Zip Lock - $10
Spare set of plugs in a Zip Lock - $10
The look on Charles' face when the wrench goes sploosh - Priceless.

How many plugs were removed when the wrench went away?

None, really, just because it didn't occur to me to take the stuff to fix the problem that I didn't foresee.

$9.99


http://www.harborfreight.com/cpi/ctaf/d ... mber=36904