can an oversized battery cause a low voltage issue? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 01-21-2014, 10:37 PM   #11
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very cool. id hate to buy an expensive battery for a chinese scooter though. lol. i actually bought the dura crap with AZ points!

next on the list is bigger jets. suppose i need to find a shop that sells jets for a chinese scooter. i dont want to wait on shipping and have it not be the right size. wonder if i could find an edelbrock style box of jets for a scooter?
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Old 01-22-2014, 08:51 AM   #12
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interstate is way better that optima. i purchased 4 redtops for generators that sit in temp controlled buildings, hooked to a charging system that is two or three times as expensive as and ctek or battery tender. two lasted 3 years and the others i just replaced with interstates, i cant have batteries i cant trust. what you want is a lead acid interstate, they last longer and arent so picky about being constantly trickle charged as the vrla or spiral cell. i have two in my work truck and since i got them i never have a problem starting it. its a 550 diesel and it doesnt get plugged in yesterday it was like 5 degrees and last time i used it was the week before and only had to cycle the key one time and it fired right up. i had one in my bonnie last 10yrs

as far as the jets, many manufacturers use the same carbs and jets, try going to a powersport dealer that will let you poke though the other jets and see if you can find something the same
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Old 01-22-2014, 11:11 AM   #13
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I have worked on these scooters a bit and found the wiring tends to have a lot of issues at the terminal ends. When the wiring harness was manufactured the tool used was a strip and crimp all in one tool and they didn't have it set correctly and cut through the wires right where the wire goes into the brass terminal, but it didn't cut through all of the insulation, so it looks good but leaves an open or intermittent connection.

You can see if your charging ring is working by disconnecting it and putting your meter on A/C volts 200v scale and connect to charge ring (being careful not to short the terminals to anything, including themselves), start the engine and you should see the voltage vary with the engine RPM'* (RPM'* go up voltage goes up). The same thing can be seen at the battery (on the 20 volts DC setting on the meter) when the system is hooked up and the battery is slightly discharged, note the current available is small and may take 10 seconds or so to see the rise in voltage.

I've worked on these scooters and have found up to six of these bad connections on one scooter.
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Old 01-22-2014, 07:06 PM   #14
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Quote:
Originally Posted by zmassive View Post
I have worked on these scooters a bit and found the wiring tends to have a lot of issues at the terminal ends. When the wiring harness was manufactured the tool used was a strip and crimp all in one tool and they didn't have it set correctly and cut through the wires right where the wire goes into the brass terminal, but it didn't cut through all of the insulation, so it looks good but leaves an open or intermittent connection.

You can see if your charging ring is working by disconnecting it and putting your meter on A/C volts 200v scale and connect to charge ring (being careful not to short the terminals to anything, including themselves), start the engine and you should see the voltage vary with the engine RPM'* (RPM'* go up voltage goes up). The same thing can be seen at the battery (on the 20 volts DC setting on the meter) when the system is hooked up and the battery is slightly discharged, note the current available is small and may take 10 seconds or so to see the rise in voltage.

I've worked on these scooters and have found up to six of these bad connections on one scooter.
mark, thanks for that info. could you do me a favor and look at the video i posted on the first post of this thread and see if its right?

thanks alot!
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