Author Topic: Drilling Coil Info needed  (Read 1314 times)

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Offline krazyk

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Drilling Coil Info needed
« on: March 08, 2011, 03:39:42 PM »
I had found some info a while back on coil but computer crashed and can not find info my wires are crap and broken and trimming will cause them to be to short. so I M going to trim them off and drill them out but I need to know how far I can drill into coil before I go to far. I figure will try this first before I buy new coils. What do I got to loose.

Offline Gaither

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Re: Drilling Coil Info needed
« Reply #1 on: March 08, 2011, 07:10:17 PM »
I admit I haven't had to mess with my coil wires. So, I know nothing.

However, can't you just trim the wires back to a good area and use a "wire splicer" and new wiring from there out?

There was a recent post in which Nortstudio posted a pic of the "splicer".

Others who have done this will get to you.

Just a FWIW.
Gaither ('77 CB550F)

bollingball

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Re: Drilling Coil Info needed
« Reply #2 on: March 08, 2011, 07:23:14 PM »
I did what Gaither said as long as the old wire are good say 3" from the coil it works fine got all my parts from Z1 splicers 7mm copper stranded wire new caps most if not all were NGK. The tank covers up the splicers. That plus running a relay setup gave me the best spark. most of my problems turned out to be the caps two had 0 ohms the other two were 2 to 3 ohms oddly enough (or at least I thought) the bike did not run to bad but I really noticed a difference.

Offline Tex

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Re: Drilling Coil Info needed
« Reply #3 on: March 08, 2011, 07:23:23 PM »
Try this, i did it and all my no spark and shorting problems went away.. just make sure to trim alittle at a time
scroll down alittle way on the page it has good picks if this link dosent work type in the search bar Accel wires in stock coils (CB550 F)

http://forums.sohc4.net/index.php?topic=68424.0

Offline camelman

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Re: Drilling Coil Info needed
« Reply #4 on: March 08, 2011, 10:57:55 PM »
I just resurrected that thread with a comment.  That method works out great, and the 500F epoxy is very easy to work with.  I didn't end up painting mine, but I did wrap them in electrical tape to make them look a little nicer.

If you go the epoxy route, then make sure you DON'T leave any gaps.  You don't want water getting in there.

Camelman
1972 350f rider: sold
1972 350f/466f cafe: for sale
1977 CB400f cafe:sold
1975 CB400f rider: sold
1970 CB750 K0 complete bike: sold
2005 Triumph Sprint ST 1050 rider

We've got to cut it off... and then come down on rockets.  (quoted from: seven minutes of terror)