- Thread starter
- #21
Tucci, I've never changed plug wires on a twin cam. On the M8, the 4 wires are tie wrapped to the frame at various locations.
You have to remove the tank to do it properly.
Thundervolt 50 Spark Plug Wires...Simply Amazing.
- Thread starter MDO
- Start date
Tucci, I've never changed plug wires on a twin cam. On the M8, the 4 wires are tie wrapped to the frame at various locations.
You have to remove the tank to do it properly.
nucseal
1000+ Posts
To make changing the wires easier pulling the tank is a plus, at least on my Freewheeler it made it easier
Not a hard job to pull the tank
What is the trick on detaching the gas line. I push up on the collar and the gas line will not come loose. Do I rotate the collar until it clicks than push or what?
I had this tank off before but I be damn if I remember how removed the gas line!
Jack Klarich
18000+ Posts
Lift up on the collar and pull down on the plastic line, they are a tight fit
- Thread starter
- #25
I put a rag behind the fuel line quick disconnect & spayed a shot of silicone on it. They can get a little crusty after sitting a few years.
- Thread starter
- #26
After what I learned recently, I would. You have 26,000 miles on wires that were most likely out of spec. in the 1st. place.
Jack Klarich
18000+ Posts
nucseal
1000+ Posts
Tried that. Didn't want to budge. If tried it on a friends bike and had the same problem. Has to be something I am doing wrong. Scratching my head on this one and frustrated.
Jack Klarich
18000+ Posts
Try a shot of silicone lube, rotate the plastic line a bit while pulling down
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And pull straight down from the quick release. Even a bit of an angle on the pulling down will bind it up.
Kevin
nucseal
1000+ Posts
Thanks guys. Will try that once I get back in town! Am out of town for the next week.
Jack Klarich
18000+ Posts
Tank removal
Jack, your are fountain of knowledge! Now one more question. You said you used hd plugs. Regular 6r12 or did you go with the screaming eagle 6r12g
Jack, your are fountain of knowledge! Now one more question. You said you used hd plugs. Regular 6r12 or did you go with the screaming eagle 6r12g
Jack Klarich
18000+ Posts
Stick with stock plugs
The reason I say this is
1. your TC engine has Delphi Ion Sensing designed into the ECM
2. changing to a plug with a different resistance will cause the ECM to read this signal as much as being out of spec, this could cause timing issues and up to including a trouble code
3. stock plugs are cheaper and your engine was designed to run with them
I have tested and run many plugs on many HD engines, I always come back to stock
Read here
https://www.triketalk.com/forum/threads/45915-Harley-Ion-Sensing
Ion
Completely mind boggling. I'm coming from the stage coach era into total computerized, concerning engines. Without someone with your experience on this site i could very well see a massive amount of money being wasted on repairs/shop hours on simple things like this(spark plugs etc)
Completely mind boggling. I'm coming from the stage coach era into total computerized, concerning engines. Without someone with your experience on this site i could very well see a massive amount of money being wasted on repairs/shop hours on simple things like this(spark plugs etc)
- Thread starter
- #38
Tucci, I stayed with the stock plugs on my M8(6R10) After 2 years, they looked very good and all 4 were identical.
With my 10% Veterans discount at my dealer, they were $19 & change for 4. I can handle that every few years.
I was gonna try NGK, but I ended up getting the wrong tip & it was a big hassle that was not worth it to save $8.
Ion research
The site Jack referenced was an eye opener in that ,one "small" variable in the electrical/ignition system on the newer engines can cause an untold amount of problems. And i'm sure you know, when it comes to electrical gremlins you're in limbo
Tucci, I stayed with the stock plugs on my M8(6R10) After 2 years, they looked very good and all 4 were identical.
With my 10% Veterans discount at my dealer, they were $19 & change for 4. I can handle that every few years.
I was gonna try NGK, but I ended up getting the wrong tip & it was a big hassle that was not worth it to save $8.
The site Jack referenced was an eye opener in that ,one "small" variable in the electrical/ignition system on the newer engines can cause an untold amount of problems. And i'm sure you know, when it comes to electrical gremlins you're in limbo
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