Coil Over Plug mod (COP) for standard coil removal

Cheers mate, ive just done ohms check on them all, 1.5 ohm each, so that's ok, it'll be weekend or following that I start fitting, going to get them all wired up and shrink wrapped first, thanks for help!
No worries, more than happy to help. They can be a bit of a complicated demanding bit of kit, not dissimilar to some wives/girlfriends, but hey, the smile they can put on your face is unquestionable. tc ex pom in Oz
 
Some Real good information on here, my understanding is R1 coils 2002-2003 to make sure they have the correct resistance, that and to be wire in pairs so both plug red wires to live on the loom, and both black to the trigger wire on the loom, and thats it !

very simple mod in my understanding here and i like the idea of extra space under the tank, also in m pipeline of work is the 3 smaller K&N pods so i can keep the bear claw, and this paired with the coil mod will give me LOTS of room under the tank !.

thanks for the info everyone ! will put this mod on my to do list !
 
Some Real good information on here, my understanding is R1 coils 2002-2003 to make sure they have the correct resistance, that and to be wire in pairs so both plug red wires to live on the loom, and both black to the trigger wire on the loom, and thats it !

very simple mod in my understanding here and i like the idea of extra space under the tank, also in m pipeline of work is the 3 smaller K&N pods so i can keep the bear claw, and this paired with the coil mod will give me LOTS of room under the tank !.

thanks for the info everyone ! will put this mod on my to do list !
Its a really simple job, just make sure soldering is good and shrink wrap the lot
 
So, I'm considering doing this conversion.
I note on EBAY that F6T558 was also fitted to. MT07.
Is it F6T558 more important than the model and year of the bike it was fitted to?
Thanks
Daz
 
So, I'm considering doing this conversion.
I note on EBAY that F6T558 was also fitted to. MT07.
Is it F6T558 more important than the model and year of the bike it was fitted to?
Thanks
Daz
the ONLY important thing is that the ohms math works out and that they fit. The F6T558 will do fine, that's what i got for a LOT less $$$ than the Mitsubishi and also finding them is difficult. Amazon is like $35 for 4, you need 6. DO IT
 
the ONLY important thing is that the ohms math works out and that they fit. The F6T558 will do fine, that's what i got for a LOT less $$$ than the Mitsubishi and also finding them is difficult. Amazon is like $35 for 4, you need 6.
Searching an auction site brings up a few new and used F6T558. From what I've read previously, used is better than new, and if Its the FST558 that is important, then i shall hunt six of them down, plus wiring and plugs

Thanks

Daz
 
Searching an auction site brings up a few new and used F6T558. From what I've read previously, used is better than new, and if Its the FST558 that is important, then i shall hunt six of them down, plus wiring and plugs

Thanks

Daz
I have 2 spare sat in the shed as i purchased 2 sets to do mine just as an FYI.
£80 a set they cost me about 8 months ago !
If you interested in these 2 let me know i csn post them out for £40 if you cool with that just half the set that way your not buying 2 set also ans having 2 spare.
 
Got some requests to tell how I did it on my 2011 R3.

First, let me say that I don't really think it matters what COP you use... they take a charge, then discharge it at the pulse.. nothing magic about it and our R3 uses normal plugs so again, nothing magic...

I found another member who did this and he said he used early generation Yamaha YZF R1 coils, so I did the same. Turns out that is 2002-2003, easily found on E-bay. You'll need two sets because the R1 only has one plug per cylinder and you'll need 6.

When you get them, unwind the wires and cut off the leads from the plugs at about 3-4".. that's all you need.. less, actually... then you have to splice them together so you have two plugs connected to one pair of wires. I used a black/red wire pair off a roll I have and would highly recommend you do something similar because polarity is important and difficult to track.

The plugs have two wires, one is red, and the other is some other color (may be black or may not). Tie the similar colors together, red with red, and connect to a butt-splice to the RED wire on your double wire (see photo).. connect the other color wires to the butt splice and to the black wire on your double wire. I goto Home Depot and get the heat-shrink butt-splices.. you'll need one size larger than the wires you're using because you're pairing them on one end.. then shrink!

You'll end up with two plugs connected to one pair of wires (one red, one black).

On the motorcycle, removed coils and stupid brackets... you're left with two female blade connectors (three pair)... they totally suck and need to be replaced with good female blade connectors... you could hard wire your new looms, but I didn't... So, I installed new female blades and shrink-wrapped them to the wiring harness....

Here's where things get tricky. The wire colors going to the coil on the R3 loom are not red-black.. however, one lead of the two going to each coil is a hot lead. Turn your ignition on and put a volt-meter on the leads. One of them will read 12 volts... that one charges the coil, the other is a pulse-trigger and tells the coil when to release the charge to the plug.... the hot lead, the 12 volt one, is connected to the RED wire on your new plugs... the black wire to the other.

Next, make sure you get the right coil leads connected to the right pair.

On the R1, the COP has you take off the plug tip, different from the stock cap... it's actually a better connection I think... however, the R1 coil does not fit snuggly into the hole in the valve cover.. it's a bit loose, so I need to figure out how to wrap something around it to snug it up.. so far, it's just fine, but if you're a perfectionist, you won't like it. As I said earlier, I don't think it really matters which ones you use, so there's likely a better fit one out there.. but I have what I have and now it's working for at least two of us (as non-scientific as this is....).

Does it make the bike run better? I have no way of knowing. I really doubt it. Though, the crappy female blade connectors that hooked to the coils were so bad, that they would come off at the slightest touch.. I tried crimping them, and only ended up breaking the little plastic elbow thingey.... more crumminess... so, I like my new blades, but that has nothing to do with switching to COPs, it's just a collateral benefit.

I'll post a pic of under the tank when I get a chance....

I know it’s been a hot minute since this post, but I recently did this conversion on my ‘06. Thanks for this conversation as it proved extremely helpful. I have some questions for you, if you have the time.

1. Spark plug gap - what did you do? R1 should be .7 but the Rocket s/b .9 You’re using the R1’s coils, so?… I left mine at .9 and it runs, but I’m not sure it’s the best it can be.
2. Removal of dumb bracket for OE coils - what did you do with tank prop? I sure would like to get rid of that bracket, but haven’t thought of a solution.
3. You mention taking off the plug tip. I didn’t, but perhaps I should. Did you?

Anyhoo, Thanks again
 
Back
Top