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[Jbbrown73]

I think I'm going to do the Ohlins front end kit. I should've done it in Sturgis, but I didn't.

[grc]

The plugs for the new M8 are the same as the plugs for the 500 and 750 models they came out with a couple years ago.  It appears to be a fine wire center electrode plug, not sure if it's iridium, supposedly made by Champion, RG6HCC.  Considering the auto folks use plugs that last up to 100k miles, I would assume you could expect at least 50k in a Harley.  I guess we will see what they specify for change intervals when someone posts the service checklists for the new bikes.  If it's 50k or more, most will never get changed.

Jerry

[Trapperdog]

The plugs for the new M8 are the same as the plugs for the 500 and 750 models they came out with a couple years ago.  It appears to be a fine wire center electrode plug, not sure if it's iridium, supposedly made by Champion, RG6HCC.  Considering the auto folks use plugs that last up to 100k miles, I would assume you could expect at least 50k in a Harley.  I guess we will see what they specify for change intervals when someone posts the service checklists for the new bikes.  If it's 50k or more, most will never get changed.

Jerry

The Rg6hcc looks to be a standard plug if I'm not mistaken.

[Twolanerider]

The plugs for the new M8 are the same as the plugs for the 500 and 750 models they came out with a couple years ago.  It appears to be a fine wire center electrode plug, not sure if it's iridium, supposedly made by Champion, RG6HCC.  Considering the auto folks use plugs that last up to 100k miles, I would assume you could expect at least 50k in a Harley.  I guess we will see what they specify for change intervals when someone posts the service checklists for the new bikes.  If it's 50k or more, most will never get changed.

Jerry

Yeah..... butt. 

50k for many riders is a much greater period of time than is 50k miles for most cars.  My worry is always something seizing when it's been there too long.  For the 20 minutes you'll spend R&R'ing the gas tank at each end of the task it's worth it to do a plug change somewhat occasionally just to know you'll not pull the threads out of a cylinder head.

[grc]

The Rg6hcc looks to be a standard plug if I'm not mistaken.

Yup, I believe you are correct.  The first picture I came across looked like a fine wire electrode, but further searching found some listings that indicate it's just a standard type plug.

I assume there will be NGK Iridium alternatives at some point, for those who don't want to have to change plugs so often.

Jerry

[OBB]

Yeah..... butt. 

50k for many riders is a much greater period of time than is 50k miles for most cars.  My worry is always something seizing when it's been there too long.  For the 20 minutes you'll spend R&R'ing the gas tank at each end of the task it's worth it to do a plug change somewhat occasionally just to know you'll not pull the threads out of a cylinder head.

You must be talking about those Ford 5.4 and 4.6 engines. Plugs are good for 100k but have fun trying to get them out after about 60k miles.

Plugs will be a winter maintenance item for me. I pull the tank every winter to clean under it anyway.

[110tHunDer]

Aren't the 5.4s the ones that liked to jettison the plugs?  Hope they have enough threads of engagement on the M-8 with 6 gallons of gasoline overhead.

[OBB]

Aren't the 5.4s the ones that liked to jettison the plugs?  Hope they have enough threads of engagement on the M-8 with 6 gallons of gasoline overhead.

They either toss them or you pull the plug apart trying to get it out of the head. If they toss them, most of the time part of the head goes with it.

[grc]

Yeah..... butt. 

50k for many riders is a much greater period of time than is 50k miles for most cars.  My worry is always something seizing when it's been there too long.  For the 20 minutes you'll spend R&R'ing the gas tank at each end of the task it's worth it to do a plug change somewhat occasionally just to know you'll not pull the threads out of a cylinder head.

Yup.  If it were me (but it won't be), I think I'd pull those stock plugs after the first year and install some good NGK Iridiums, and I'd use high temp antiseize compound on them like I do with all my plugs.  I've never had an issue yet with stuck plugs or pulling threads on anything I've owned doing it that way.  Never owned a 5.4 though.  I think that was designed back when Ford hired some out-of-work Harley engineers. 

Jerry

[stevep1794]

I was at a dealer on Tuesday evening and mentioned this and I received a blank stare of disbelief in return.

Free 117 kits are NOT offered at my dealership either...oh how the rumor mill keeps a churning. Then again.. CVOs dont sit for long at my local HD shop.

[OBB]

Free 117 kits are NOT offered at my dealership either...oh how the rumor mill keeps a churning. Then again.. CVOs dont sit for long at my local HD shop.

Plenty of ads out there in print offering it. Just because your dealer didn't offer it, doesn't make it a rumor.

[Heatwave]

Plenty of ads out there in print offering it. Just because your dealer didn't offer it, doesn't make it a rumor.

If you or anyone else sees an ad for a free 117 upgrade kit, it would be very helpful to post. My local dealer was offering free 110 upgrade kits for '16 bikes but nothing in our area on he new M8s.

[OBB]

If you or anyone else sees an ad for a free 117 upgrade kit, it would be very helpful to post. My local dealer was offering free 110 upgrade kits for '16 bikes but nothing in our area on he new M8s.

The ones I was referring too was on leftover '16 CVOs. They'd toss in the 117 upgrade if you paid MSRP.

[stevep1794]

Plenty of ads out there in print offering it. Just because your dealer didn't offer it, doesn't make it a rumor.

then post said ad....I'll wait

[110tHunDer]

http://www.cvoharley.com/smf/index.php?topic=107264.msg1378427#msg1378427