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Post by christopher on Aug 13, 2019 20:17:18 GMT -5
Replaced the ignition coil on Wahoo, 8 minutes later, well that wasn't it. Coil measured 0.398 ohms hot about the same cold, lower than I'm used to seeing a coil measure. Checked the new really close to the same. Replaced.The CDI with a cheap red box because that is what I could get from Amazon fairly quick. Started and ran for 20 minutes in the drive, that's good, road around the block a 4 or 5 times also, got to 30mph no problem. What drives me nuts if this is it I can't measure it to see that it is bad. Might just have decided to run for awhile.
What I did notice
The A.C. from the stator measured 99 volts on the red box, old cdi measured 45 up to 70. Wonder if this is an indicator of what might be incorrect with the old box?
The other two wires red w/stripe measured 2.6VAC and climbed to 5 vac as the rpm goes up, I think this is The pickup or trigger signal.
The black w/white stripe measures 2 vac and goes down to 1.5 VAC as the rpm goes up, believe this is the ignition and kill switch.
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Post by chehystpewpur on Aug 14, 2019 12:59:14 GMT -5
if your getting different voltages after replacing cdi you may have located the problem or a problem thats been caused by by failing parts. or you have disturbed a broken or bare wire somewhere and its not posing an issue until it jostles again. hopefully not the latter. also one other thing to check if an electronic has failed or is giving inconsistent results is your grounds. ive had to clean and replace a few over the years but my bike is 10 years old now and has had 30k miles put on it so its been through some things. many times at the shop i worked at wed replace a part and about a month later it would stop working again or start acting up and it would end up making us chase bad factory grounds and or wires that burned/bad fuse panels that would supply just enough voltage to work with a new part but not for long.
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Post by christopher on Aug 14, 2019 17:43:53 GMT -5
Yeah, I have looked at a few connections and am thinking about soldering and using marine grade shrink tubing. Also have a jar of conductive paste I have been thinking of putting it some on the connections, to help. Scooter has been stored inside its entire life and bullet connections look clean.
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Post by chehystpewpur on Aug 14, 2019 19:14:17 GMT -5
if your connections look good and the harness looks like that of a scoot thats stored inside its doubtful your harness is to blame unless it truly is a ground issue. most likely for a ground issue that bad youd have many other issues like no headlights. on a side note i have a remote start/alarm system on my scoot but its factory and part of the key. on another thread i was trying to be helpful on he claimed to have installed an alarm on it and issues sprung up shortly after. im wondering if maybe this could be relevant. some time ago i unhooked my alarm/ele start box to remove dead weight and free up some space/airflow and apparently its extremely integrated into my factory harness. it caused all kinds of crazy things and could pose an issue if one was going haywire.
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Post by christopher on Aug 14, 2019 20:50:04 GMT -5
I rode it for the first time, put a few miles on, riding around town. No issues, top speed indicated on the speedo was 38mph, will have to take a GPS and see what it actually is. Found the kill switch wire and hooked it back up also. Previous technician had disconnected it to see if it was an issue. Owner just never took it back for more troubleshooting work. With the issue being intermittent I bet it was getting expensive paying someone to look for a random issue. Adjusted 2 stroke oil cable to open, further at idle and wide open throttle, injecting a bit more oil. Removed the exhaust manifold pipe, it is not restricted, looks like the air box is the only restriction.
Next is to take the belt cover off and see what is under there.
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Post by chehystpewpur on Aug 16, 2019 16:29:33 GMT -5
glad to hear that its running better and your issue is hopefully solved. id assume with some tuning especially in the cvt you scoot should do 45-50ish on the speedo. i got pretty lucky with my bike for whatever reason it was a freak from the factory but most of the 2 strokes move pretty well for their size.
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Post by christopher on Sept 23, 2019 17:04:26 GMT -5
I'm getting 42 on my gps, runs fine dialing in variator weights.
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Post by chehystpewpur on Sept 24, 2019 15:36:45 GMT -5
glad to hear its up and running again and your getting it dialed in. what ended up solving the issue of it dying on you?
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Post by christopher on Sept 24, 2019 16:59:32 GMT -5
glad to hear its up and running again and your getting it dialed in. what ended up solving the issue of it dying on you? CDI
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Post by chehystpewpur on Sept 24, 2019 17:28:04 GMT -5
good stuff. atleast future people looking for a solution will have some answers and your making progress tuning it. hope you can get it where you want it and enjoy it for a long time.
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