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Post by murkyapricot on Dec 7, 2015 9:35:53 GMT -5
1 year old 150cc gy6 taotao powermax 5k miles gets used about  miles a week Ok so was driving to work, all of a sudden started to lose power, slowed down and shut off. Picked it up later at night, still doesn't start. I had heard a slight clicking or tapping sound the night before it broke down, so I thought the valves were maybe too tight, but thought if that was the issue it would have started after a few hours. So I checked the carb for any leaks / loose lines. Intake manifold is fine. Did the finger test for compression seems ok. Made sure the ignition coil wasn't loose. Took off cvt cover everything is fine in there. So I plan on checking everything out with a volt meter today. Reseting valve lash and cleaning out the carb. Is there anything I might be forgetting? The only thing I've done different to the scoot recently is I just switched to synthetic oil a week ago. No leaks or anything I'm assuming this is coincidence. Also I plan on switching out the cdi but I have little faith that's going to work |
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Post by ricardoguitars on Dec 7, 2015 11:00:46 GMT -5
Have you checked the sparkplug and/or the coil? The sparkplug boot tends to make bad contact with the plug, I've had this issue several times.
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Post by crawford on Dec 7, 2015 11:47:53 GMT -5
do a compression test valves may have to large gap doing test will give you a easy way to discard that problem valves don't make noise if to tight .
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Post by murkyapricot on Dec 7, 2015 14:59:55 GMT -5
How do I test the coil?
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Post by ricardoguitars on Dec 7, 2015 17:49:51 GMT -5
Remove the sparkplug from the engine, put it in the coil, then put the sparkplug electrode right next to the frame or engine head, not touching, but almost; crank the engine, you should see a spark. |
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Post by murkyapricot on Dec 8, 2015 0:10:35 GMT -5
Remove the sparkplug from the engine, put it in the coil, then put the sparkplug electrode right next to the frame or engine head, not touching, but almost; crank the engine, you should see a spark. Ok so I'm getting spark I adjusted the valves Cleaned the carb Still no start What else can I do |
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Post by murkyapricot on Dec 8, 2015 1:26:00 GMT -5
It almost seems like the kick starter is jammed
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Post by cyborg on Dec 8, 2015 2:53:20 GMT -5
Sounds like a soft seize may have happened,,,check the oil level
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Post by murkyapricot on Dec 8, 2015 9:07:28 GMT -5
Sounds like a soft seize may have happened,,,check the oil level Oil level is still fine How do i check/repair a soft seize? |
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Post by cyborg on Dec 8, 2015 9:43:59 GMT -5
when the oil gets too low the cylinder doesnt get enough lube and the piston and cylinder get scuffed and they stick together or "seize" a soft seize is when it's minor and the engine doesn't get hurt too badly and will still run
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Post by murkyapricot on Dec 8, 2015 9:58:53 GMT -5
I had just changed the oil last week and put the right amount in. It is the first time that I have used synthetic though. The oil level is still fine but it won't start. Basically here's where I'm at right now:
Engine gets spark.
Valves adjusted to .004 and .005 inch
Carb disassembled and cleaned.
No vacuum leaks, no blocked passageways.
No intake manifold leak.
Compression checked by putting finger over hole and cranking.
When I try to start it, the cvt will give a slight turn and ill hear it trying to start, but only for a second. Giving it gas while trying to start doesnt seem to make a difference.
I'm at a loss of what to do next but I need to get this thing running asap.
I'm going to get a compression gauge today to get some accurate information, but what else should I be checking out?
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Post by crawford on Dec 8, 2015 11:26:51 GMT -5
first get the compr ession done that will tell most of story then we can go to next step. Question you didn't get and bad gas or water in it? and make sure gas is getting to carb? kill switch is on ?
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Post by murkyapricot on Dec 8, 2015 13:07:55 GMT -5
first get the compr ession done that will tell most of story then we can go to next step. Question you didn't get and bad gas or water in it? and make sure gas is getting to carb? kill switch is on ? Got gas where I always do I have clear fuel lines so I know it's getting gas plus the carb had gas in it when I removed it Killswitch is off,if it was on it wouldnt do anything when I try to start it |
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Post by murkyapricot on Dec 8, 2015 20:51:06 GMT -5
Ok so i switched out the cdi, no change, here's a video of me trying to start it a few times hopefuly this helps
I have spark
CDI is good
Adjusted the valves to .004 and .005
Disassembled and cleaned carb, no leaks anywhere
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Post by murkyapricot on Dec 8, 2015 22:11:54 GMT -5
I can't get any compression reading
Also the kick starter seems to be stuck i can't even attempt to kick start it, could this be the root of the problem?
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miles a week
