|
|
Post by oatmeal on Mar 12, 2017 20:17:53 GMT -5
Okay, so i finally managed to pull off the reed block and inspect the reeds. I was a little sidetracked putting a new motor in my 2010 VW GTI so the scoot had to sit for a little bit. The reeds were intact and appeared to be in great condition. Because they were out, i pulled the reeds off, flipped them around and then reassembled the block before putting it back in just to be safe.
It was a really nice day outside today in Texas so i figured what the heck, I will just go ahead and pit the 72cc Polini kit on. So I did just that. Pretty straightforward process too. got it all buttoned back together and i started it up and it immediately roared to life. It had no issues idling or running with the new kit on so i let it warm up for a few minutes and then took it for a spin. It ran flawlessly up until the end of my street where it started doing the same rev hang issue...
I just ordered a new stator pickup coil... I really hope that's the problem... The old one tested just BARELY outside the low end of the recommended resistance values so we will see.
|
|
|
|
Post by pinkscoot on Mar 13, 2017 11:56:15 GMT -5
When you say rev hang do you mean that its takes some time for it to drop back to idle? This would be a lean condition. Did you up jet your carb for the BBK?
|
|
|
|
Post by gsx600racer on Mar 15, 2017 4:37:43 GMT -5
I have a scoot that was stored for 3 years and became home to Mud Dabbers. They had nests everywhere the could get checking the air box would be a good place to start. Exhaust can house them too. |
|
|
|
Post by oatmeal on Mar 17, 2017 11:30:42 GMT -5
my nomenclature was off... sorry about that. The scooter doesn't rev hang in the sense of not falling (lean condition).
I meant it as if i hold full throttle, the rpms rise to about 3200 and then do not go further. the scooters tone changes and it sounds as if it is hitting a rev limiter or fuel cutoff.
reference my video on the first page... i really do a bad job of explaining it haha
|
|
|
|
Post by gsx600racer on Mar 18, 2017 1:37:22 GMT -5
How is the RPM gauge connected to the scooter(electrically) ?
Is the (sensor) lead wrapped around the ignition coil wire or connected to the coil terminal ?
|
|
|
|
Post by spaz12 on Mar 18, 2017 1:44:36 GMT -5
Sorry, not one for reading long paragraphs, but watched your video and the first thing I think about is the carburetor slide/needle not attached to the cable properly. Sorry if you've already covered that.
|
|
sanec
Scoot Member
Posts: 69 
|
Post by sanec on Mar 18, 2017 9:33:49 GMT -5
Hi, have u checked the gap between flywheel and pick up sensor. As english is my third language, dont get confused on the words,ill try my best. U seem to have knowledge or u are a mechanic. Long time ago the pick up sensors were mechanicly controlled from that point to sparkplugs spark rather is a 2 stroke or 4 stroke engine. We were always checking the gap that tells the cap which piston should fire at the time.
From your telling on the sparkplug, black and dry, leads to too cold sparkplug or carbon fouled. But that is not your problem cause the scoot was running like that.
Im not an expert but check youre pickup sensor gap and is he working properly. If it is than you swap the CDI. Cause from your words this isnt an engine failure,( members, not every scoot failure need to be an engine failure), u have an electrical problem, my thoughts.
|
|
|
|
Post by paceneedsstides on Mar 30, 2017 13:00:22 GMT -5
air hose leak?
|
|
|
|
Post by oatmeal on May 26, 2017 15:54:58 GMT -5
!!!!!Resolution post!!!!!!
Okay so it has been a while and to be honest the scoot went to the back burner for a little bit but I got it fixed and would like to give a huge thank you to yall for the assistance in troubleshooting!
Seeing that my pickup coil wasn't in the acceptable range of resistance, I got a new one and wired it up. After that I couldn't even get it to turn over... I'll attribute that to the fact that I had to splice it into the existing harness in place of the old one instead of repinning it into the harness plug connector.
So I decided to splurge and get an all new stator that comes with the pickup coil and harness all the way up to the plug. I got that in no problem and fired the scooter. It started right up and then did the same thing..... so clearly that time was wasted. I was a little bummed because my electrical diagnosis pointed to the pickup coil...
So I figured what the heck and just bought a new CDI box despite the face that it tested within the normal ranges for resistance. It came in. I installed it. I started the scoot up, and now it runs flawlessly!
I just wanted to take the time to write up a reply to show a resolution to an issue that had me scratching my head!
|
|
|
|
Post by geoffh on May 26, 2017 16:10:32 GMT -5
Glad you got that sorted thanks for the resolution post,might help if you can post a snap of the CDI so we can watch out for that type of fault.
geoff
|
|
|
|
Post by pinkscoot on May 26, 2017 20:55:10 GMT -5
Thanks for getting back and letting us know your resolution.
|
|
