Clinician
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Post by scootcanic on Jun 14, 2014 15:29:17 GMT -6
By the way when we did the new coil originally the connections were loose and I did crimp them tighter at that time. Loose connections are a killer for troubleshooting on big rigs where I work.
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Post by Alleyoop on Jun 14, 2014 16:00:40 GMT -6
The CDIs some people complain about are these: Rpms change, sometimes hard starting, sometimes missing at high rpms etc. And usually then the guy thinks its his carb a fuel problem or something else. Alleyoop  |
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Clinician
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Post by scootcanic on Jun 14, 2014 16:43:41 GMT -6
The CDIs some people complain about are these: Rpms change, sometimes hard starting, sometimes missing at high rpms etc. And usually then the guy thinks its his carb a fuel problem or something else. Alleyoop Well honestly we had one die on the road. Got it back to the garage. Went through all of it, spark was there but might have been weak now that you mention it. Carb was all good and clear, wouldn't pop even on starting fluid. Checked compression, 100 psi only with kick starter, battery dead, throttle wide open. Checked valve adjust. Just a little tight on intake, exh was ok. Adjusted intake. Check gas flow out of the tank, good. Carb had plenty of gas in it too. Nothing was making sense. Of course we tried it after each little thing, finally it popped off for no real apparent reason. CDI maybe? |
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Post by Alleyoop on Jun 14, 2014 17:08:48 GMT -6
Could very well be the CDI acting if spark was there.
Alleyoop
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Clinician
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Post by scootcanic on Jun 15, 2014 9:43:42 GMT -6
 So you convinced me to reinstall the stock cdi. In total curiosity I took the blue one apart to see why they are bad, first off they are filled with sand once you get the resin plug out. Sand is an insulator and keeps heat in. Totally killing the reason for the heat sink aluminum. Then found bad cold solder joints where the wires meet the board, they all just popped off the solder tabs. Buyer beware. It is repairable but why should I fix a new part I installed 10 minutes ago? |
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Post by Alleyoop on Jun 15, 2014 16:23:26 GMT -6
WOW!! Your the first to actualy investigate and tear the sucker apart and find why people complain about them and take them off. GOOD INFO BRO and GOOD JOB. Write up a nice report about them with the picture and then YOU ADD IT to TIPS AND TRICKS section.
So how is it with the Stock CDI better?
Alleyoop
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Clinician
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Post by scootcanic on Jun 15, 2014 22:09:23 GMT -6
Well with the stock CDI, honestly there is no noticeable changes. It runs and performs the same for all real purposes. Still has a RPM limiter at the same spot that the blue one does. Basically found out not to waste time or money on that one from all things I can tell.
I live in the middle of no where and like to ride as fast as possible on country roads, but also at the same time, because of my technical background, can appreciate a limiter on a CDI so there is a small safety net so the engine is not over rev'ed. Just at first didn't think that the aftermarket "performance" CDI's had them as well. Don't worry there is village and city driving in there too, just not as much.
Only way to go faster is change gearing or variator and clutch components. At least with a little bigger displacement there is better get up and go from a stop, reach traffic speed quicker in town and also not lug as hard on hills.
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Post by Alleyoop on Jun 15, 2014 23:00:44 GMT -6
Curious what are your rpms at WOT if you have a tach on it?
Alleyoop
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Clinician
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Post by scootcanic on Jun 15, 2014 23:59:41 GMT -6
Unfortunately I do not have a tach on it. Is there a simple way to accomplish this or would it be easier to drive to chi town and have you do it? LOL
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Post by Alleyoop on Jun 16, 2014 11:25:19 GMT -6
Get one of these I have one installs in five mintues just warp it around the coil wire and put it up in front where you can see it while riding. Alleyoop www.trailtech.net/digital-gauges/tto |
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Post by Bashan on Jun 16, 2014 19:37:26 GMT -6
I use a Tiny Tach but those Trail Techs are actually cheaper and look a little classier. Plus Trail Tech...great products and great tech support. I bought one of their full wave rectifiers and it is indestructible and they DO answer e-mail tech inquiries. Nice people, great products. Rich
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Post by Alleyoop on Jun 16, 2014 20:24:48 GMT -6
Here is were I mounted mine Trial Tach, even though I already have a tach built in the instrument panel I bought it to try it out and I like it. The Trail Tech registers about 300 rpms higher than the one that is built in, but then again the built in one the numbers are not closely graduated. Alleyoop  |
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..BAD TO THE BONE..
