| Author | Message | ||
     Itileman |
I'm in the process of doing my 10k service and just pulled the plugs. Front is a 10R12APP, rear is a 10R12x. ???? Same plug, different #? The front has the HD Bar & Shield logo, the rear says "Harley-Davidson. Got some NGK's from O'Reily, but they are the wrong ones (have a 3/4" drive). | ||
| Dio |
Is there a chance a plug was fouled and replaced by the selling dealer before you got the bike? | ||
| Discochris |
That's odd. I just did my 10k service today, and the plugs were both the 10R12X, and that's what I bought from the dealer to replace them with. Oh, and I hated doing the front plug far more than doing the rear. Getting that front boot back on was a huge pain. | ||
| Itileman |
Dio - very good chance of that, but still wondering about the plug #'s. Did not have any effect on how the bike ran. Also had the coil replaced at 7k. Disco - looking forward to that tonight. The rear sure came out easier. | ||
| Pso |
Disco, you should try it with the Magnacores. At least with the Hardley wires the boot will slide up the wire a bit and you can use a screw driver to snap the cap on. | ||
| Etennuly |
Don't forget to put some anti-sieze on the plug's threads.  It can be almost as important as changing the plugs. | ||
| Jphish |
You may want to try NGK irridiums - I changed mine at 20K just because, but were still very sparky. Saves wear & tear on the threads & never had one foul. | ||
| Discochris |
I put anti-seize on the plugs, as well as some dielectric on the boots. Cheap insurance... My plugs actually still looked very good when I pulled them. Still, it's not something I want to do again anytime soon. | ||
| Itileman |
Plugs are in and ready to roll. Discovered a new tool for the rear plug install - ran a long bamboo skewer inside the tubing to give it some rigidity to start the threads. Was able to set the plug guiding it over the hole with a screwdriver, then get at it with the wobble socket. Both plugs went in finger tight without mechanical advantage. Only needed a little torque from the ratchet to snug them up. Anti-sieze & plug wire grease included. Had to order an air filter from American Sport Bike because the local dealer doesn't stock them. Hitting the road for a week and change Friday. | ||
| Discochris |
I had a hard time with the 3/4 fuel line to run the rear plug. I had some clear water line tubing I use for my water jug I strap to the triple tail for long trips, and that worked much better. | ||
| Itileman |
I just used some 1/4" clear fuel line tubing and stuck it on the top of the plug. | ||
| Ratbuell |
10R12X is the spec for '08 and up aircooled bikes, they have increased "anti-fouling" characteristics (different heat range, IIRC). 10R12A is correct for '07-earlier XB's. | ||
| Rwven |
I find that 3/8" I.D. airline hose works great for starting the rear plug. |
