 how to know your cdi is failing?
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Joined: Mar 2008
Posts: 1,586 Likes: 1
Learned Hand
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OP
Learned Hand
Joined: Mar 2008
Posts: 1,586 Likes: 1 |
Having issues with both bikes running on o ne cylinder at start up.Need ideas.
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Re: how to know your cdi is failing?
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Joined: May 2007
Posts: 5,068 Likes: 1
Saddle Sore
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Saddle Sore
Joined: May 2007
Posts: 5,068 Likes: 1 |
erratic behavior is one, cutting out in the dampness/rain
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Re: how to know your cdi is failing?
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Joined: Mar 2008
Posts: 1,586 Likes: 1
Learned Hand
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OP
Learned Hand
Joined: Mar 2008
Posts: 1,586 Likes: 1 |
The one bike is famous for starting and running on one.The other never missed a beat untill the other day after giving it a quick splash to get the mostly dust off.Changed coils and wires,no change.A while later started right up,running on two .Took it out for a boot and it went back to one.Started it later and has been running on two ever since. 
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Re: how to know your cdi is failing?
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Joined: May 2007
Posts: 5,068 Likes: 1
Saddle Sore
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Saddle Sore
Joined: May 2007
Posts: 5,068 Likes: 1 |
same here, rode it in moderate rain, started running crappy, got a ProCom and it fixed it. The igniters are sensitive to moisture .
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Re: how to know your cdi is failing?
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Joined: Jul 2011
Posts: 2,212
Oil Expert
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Oil Expert
Joined: Jul 2011
Posts: 2,212 |
2007 Speedmaster and miss it!
2013 T-Bird Storm and Luvin it!
Catching a yellow jacket in your shirt at 70 mph can double your vocabulary
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Re: how to know your cdi is failing?
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Joined: Feb 2007
Posts: 23,250 Likes: 64
Fe Butt
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Fe Butt
Joined: Feb 2007
Posts: 23,250 Likes: 64 |
Quote:
cutting out in the dampness/rain
True but doesn't always mean it is bad, mine did that a couple times in the driving rain coming home from Niagara, got it restarted both times and got home. Haven't had a problem with it since. That trip was 2 maybe 3 years ago, maybe longer, can't remember anymore.
I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!
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Re: how to know your cdi is failing?
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Joined: Mar 2007
Posts: 5,616
Check Pants
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Check Pants
Joined: Mar 2007
Posts: 5,616 |
Quote:
Having issues with both bikes running on o ne cylinder at start up.Need ideas.
Buy a Tbird like everyone else then mail those tins to me so they can get shown off on a running bike this year. 
SOLD: 07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq
NEW: 19 Goldwing Tour DCT
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Re: how to know your cdi is failing?
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Joined: Mar 2008
Posts: 1,586 Likes: 1
Learned Hand
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OP
Learned Hand
Joined: Mar 2008
Posts: 1,586 Likes: 1 |
Sounds like a plan Z.
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Re: how to know your cdi is failing?
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Joined: May 2005
Posts: 524
Adjunct
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Adjunct
Joined: May 2005
Posts: 524 |
Rain or shine, mine will run fine for 10-30 miles then the left cylinder stops firing. After another 5-10 miles, it'll start firing again. It's intermittent and frustrating.
Last night the left carb was drained to check for trash or water. None to be found. I'm not in the position to start replacing coils and the cdi hoping to fix it. Wish there was a definitive way to track down the problem.
Didn't buy into the hype, you can keep the change.
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Re: how to know your cdi is failing?
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Joined: Mar 2007
Posts: 5,616
Check Pants
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Check Pants
Joined: Mar 2007
Posts: 5,616 |
Marty, I went back and read this. I didn't realize both bikes were effected. Odd that both CDIs would be bad but it's certainly a possibility.
I'm thinking getting a replacement (only one for now) is something you should consider.
This will allow you to verif both bikes. If you deem that both CDIs have taken a crap then use the stock mapped on in Nancy's bike and get one with a performance based map for yours.
SOLD: 07 Black BA, 39mm FCRs, TPUSA stage 1 head, TPUSA 813 cams, TPUSA 10.8:1 pistons, TTP #3 igniter, Specialty Spares Long Cannons, Tsukayu Hard Bags. 82HP/55tq
NEW: 19 Goldwing Tour DCT
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Re: how to know your cdi is failing?
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Joined: Oct 2012
Posts: 460 Likes: 3
Adjunct
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Adjunct
Joined: Oct 2012
Posts: 460 Likes: 3 |
Had the cdi problem about 10 months ago. I would intermittenly drop the the left cylinder and it is was always only the left cylinder. I swapped the plug wires and coils and the left cylinder would still cut out, so I knew it wasn't the coil or plug wire. Bought a Pro Com and put it on and haven't had a problem since.
Last edited by JD13; 06/29/2014 9:46 AM.
2006 865 Neon Blue/Jet Black Speedmaster,790cams, TTP Stage 2 Firestarter, Epco Exhaust with 10.25" Samson Vrod baffles, UNI pods with 40 pilots, 150 mains,Thruxton needles, 3 turns out.
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Re: how to know your cdi is failing?
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Joined: Mar 2008
Posts: 1,586 Likes: 1
Learned Hand
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OP
Learned Hand
Joined: Mar 2008
Posts: 1,586 Likes: 1 |
I have a ttp igniter comming.A very generous member offered and sent me a procom to try out.Boom fired right to life,as it did with the old igniter.Changed the coils back to nology and used the stock wires as the nology fell apart in my hand removing the coil end(I hate when that happens)Still runs on two,for now.I never did take the bike out to try the procom,all I know is that it did work on both cylinders.Been doing alot of reading on here about the procom. On this site the consensus seems to be that other than a few starting issues its fine,but go to an ATV site and read there,they claim that they are wreaking there engines.For now,I'm glad I opted for the ignitech/pieman/TTP igniter.I'll let you know more later.
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Re: how to know your cdi is failing?
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Joined: Mar 2009
Posts: 12,964
Stickman Yogi
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Stickman Yogi
Joined: Mar 2009
Posts: 12,964 |
Huh, and... huh!? Time will tell I suppose. (Did you hear about Brent's problems?)
Live to love, love to live.
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