 Advice on that confounded cdi needed
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Joined: May 2005
Posts: 524
Adjunct
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OP
Adjunct
Joined: May 2005
Posts: 524 |
To start with, my '05 America has about 60K miles. The last two times it was taken for a spin, it started firing on one cylinder within 10 miles. Fast forward 5 1/2 weeks later, the bike hasn't misfired once for the mechanic. Money is a little tight and I don't want to randomly buy parts hoping that it fixes the problem. Given the miles and age of the bike, what would you folks do?
Didn't buy into the hype, you can keep the change.
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Re: Advice on that confounded cdi needed
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Joined: May 2010
Posts: 5,720
Check Pants
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Check Pants
Joined: May 2010
Posts: 5,720 |
I would reroute my coil wires, so the left powers the right and vice versa. If it happen again, and the misfiring cylinder moves over, time for new coils.
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Re: Advice on that confounded cdi needed
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Joined: Mar 2009
Posts: 12,964
Stickman Yogi
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Stickman Yogi
Joined: Mar 2009
Posts: 12,964 |
For sure, try to isolate the problem with Ryk's suggestions. It's probably one or the other... a bad coil or the CDI. I'm going with a bad coil (only because it sounds much like a problem I had a while back which in the end turned out to be a faulty coil).
Live to love, love to live.
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Re: Advice on that confounded cdi needed
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Joined: May 2005
Posts: 524
Adjunct
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OP
Adjunct
Joined: May 2005
Posts: 524 |
Thing is, it's been at the shop for 5 weeks and it hasn't misfired. He says that it has to start acting up before he can figure out whats wrong.
Didn't buy into the hype, you can keep the change.
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Re: Advice on that confounded cdi needed
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Joined: May 2010
Posts: 5,720
Check Pants
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Check Pants
Joined: May 2010
Posts: 5,720 |
Get your bike back from the shop before the storage bill gets too high. Ask your mechanic to switch coils, then let you ride it enough to do the test. 5 weeks? Summers winding down.
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Re: Advice on that confounded cdi needed
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Joined: Oct 2007
Posts: 1,160
Learned Hand
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Learned Hand
Joined: Oct 2007
Posts: 1,160 |
Quote:
Get your bike back from the shop before the storage bill gets too high. Ask your mechanic to switch coils, then let you ride it enough to do the test. 5 weeks? Summers winding down.
Mine was missing out of the blue and finaly nothing at all out one cylinder I switched the coils and still nothing on the one side. I would say switch the coils and see if the problem moves then go from there.
Life need a little Triumph!
2008 Triumph Speedmaster, Single baffle drag pipes, lots of black powder coatin,K&N pods, AI removed, TBS needles and a procom cdi.
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Re: Advice on that confounded cdi needed
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Joined: Mar 2008
Posts: 1,586 Likes: 1
Learned Hand
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Learned Hand
Joined: Mar 2008
Posts: 1,586 Likes: 1 |
I went and bought a new cdi as mine started running on one cyl.for the first time.Funny the other will run on one routinely and after a short time fire on both.I changed the batt. in the one I bought the new cdi for and like majic both cylinders fired On both cdi's.Make sure your batt. is good and strong.As for the other speedmaster,I have learned to live with it for the short time it only fires on one.
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Re: Advice on that confounded cdi needed
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Joined: Oct 2012
Posts: 459 Likes: 1
Adjunct
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Adjunct
Joined: Oct 2012
Posts: 459 Likes: 1 |
Definitely follow Ryk's advice first as that is an easy way to diagnose a bad coil. The one thing about bad coils that I have found is that they have a tendency not to show up until they get good and hot so you may have to ride the bike around for a bit for it to show up. From my own experience with a bad cdi and others that I have read about, the main sympton is loss of one cylnder and it is always the same cylander even if you swap the plugs and coils around.
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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