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TJ's
03-05-2008, 11:00 PM
I've to replace the spark plugs on my lightning as it's been coughing a bit from low RPM acceleration. Do i need anything special? I'm guessing its just a case of removing the air cleaner and seat and thats it i've got full access to both plugs?

robbiemac
15-05-2008, 05:10 PM
Hi TJ's that's about it. Here's what the book says:-


Replace every 10,000 mile (16,000 km) service interval.

Use only Harley-Davidson 10R12A spark plugs.
1. Remove left side air scoop to access front cylinder spark
plug.
2. Disconnect spark plug wire from front spark plug.
3. Using a 5/8 in. box end wrench and 5/8 in. spark plug
socket, remove front spark plug.
4. Remove seat.
5. Remove air cleaner assembly.
6. Disconnect spark plug wire from rear spark plug (use
automotive spark plug boot remover/installer if required).
7. Using a 5/8 in. wobble socket and 12 in. extension,
remove rear spark plug.

You probably have done it by now but better late than never:)

TJ's
18-05-2008, 08:26 AM
Cheers Rob!
I haven't done it yet, been away on work so much haven't even looked at it! It's good to make sure i've got the right tools before hand. Thanks for your help!!!:60277EB7B04744289C0

TJ's
22-05-2008, 08:19 PM
When will Buell (and harley for that matter) end their love affair with superglue????

I got the plugs and spanners and the T25 start screwdriver to take off the airbox and everything superglued in place. I don't mean stud grade, i mean locktite! Got the airbox cover off but cannot undo the 4 T25 star head bolts that hold the air box base in place, it broke the screwdriver head!!!!


What do i do now. Complain to a dealer about poor build qaulity? It's just out of warranty by a month or two and the airbox has never been off before....

TJ's
23-05-2008, 09:55 PM
OK, all done! All my fault! The bolt heads were T27 not T25, when you buy a set of star heads you'd expect all the sizes really wouldn't ya! It took the thcik end of a mornin and 2 mates tool boxes to find a T27! Still p'd off with the locktite thing tho!
Bikes running just right now!

Scotty
18-06-2008, 05:09 AM
All good above, just take care not to cross thread the rear plug when you are putting the new one in, it can be a bit fiddly to line up.

nutah
20-07-2008, 10:43 PM
:)

I allways put a bit of copper grease round the plug thread , makes it go in an undo later easier.
the front plug will be easy to get too if you remove the air scoop , the rear will need the seat and air box removing.
a good tip , put a small cable tie round the ht lead it stops water running down the front ht lead from the air scoop, in heavy rain..
i found this out the hard way.
oh yeah an put one round the top of the rubber over the clutch cable adjuster (in front of the motor).:169B9ADF431545348BC:60277EB7B04744289C0
this will stop water getting in yer transmition oil.

yamyambuelly
26-08-2008, 10:00 PM
im running my xb12ss on hgk iridium and it runs better than the genuine harley(champion) originals
and i found the front one harder to do, to easy to cross cos very difficult to refit cos of the frame stopping your view

jinxy
26-08-2008, 11:52 PM
glad i got a tuber then plugs easy as anything to change , Mind it still coughs and barks alot and thats just the bike :439:

Dave_Scott
27-08-2008, 09:58 PM
Same as Jinx:D 5/8" open ender is all I need, jobs done in 5 minutes,:439:













S1 old skool Buell.

nutah
29-08-2008, 10:53 PM
:D:D yeh but wheres the fun in not struggling ...