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Scooters - 50cc => Super 9 => Topic started by: Martfart on April 14, 2015, 06:05:38 AM
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I have a 2002 super 9 with a brand new 2012 engine. It runs great when cold but as it heats up it kinda boggs down when trying to accelerate. Once it passes 45 km/h it runs great but its annoying at the trafficlights.
The engine was complete with everything so i have a new stator etc. I have replaced the ignitioncoil, sparkplug, gas.
The scooter is derestricted.
Jetting issue?
Cvt clutch?
Cdi?
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Check the auto choke. Could not be closing.
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Wouldnt that leave me with no idle at all?
I will check it however!
Have read some articles on how to adjust the autochoke
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which engine did they put in. THERE WAS NO 2012 SUPER 9 l/C
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Obark, good point.
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I'm not aware of any way to adjust it if it is the basic type of auto choke that is on most scoots. I'm only aware of, at least on my three scoots, cold is retracted up, then as the current to it heats up, the needle drops until closing off the extra fuel flow.
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which engine did they put in. THERE WAS NO 2012 SUPER 9 l/C
Dunno
Bought it from an autostore who said it was a 2012. He had a large pile of em. Brand new in an oem box. Import from asia according to him.
Really dont care tho. Its a brand new engine
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I'm not aware of any way to adjust it if it is the basic type of auto choke that is on most scoots. I'm only aware of, at least on my three scoots, cold is retracted up, then as the current to it heats up, the needle drops until closing off the extra fuel flow.
Some autochokes can be adjusted. Dunno if mine is one that can. Will check tonight.
http://youtube.com/watch?v=QLxprxrfOik
Its in swedish but you will understand
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Was the carb included with the new engine , do you have the super9 l/c model
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No there was no carb. Everything cept cvt, and carb.
Have removed the autochoke and it serms to be working fine. Checked sparkplug and it was mediumbrown (looked spot on)
Its a l/c
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I'm no expert, far from it. My next move would be a desperate attempt to really clean the carb and jets. Also to double check for any vacuum leaks.
And I'm going to assume that your air filter isn't overly dirty or something simple....
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The annoying thing is that it runs really well when cold. It runs really well when i get it up to speed when its warm.
It boggs at redlights and sometimes it stalls.
Im beginning to think its cvt related. I have lots of parts from 1 vitality and 1 bet@win i have stripped.
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How did you "remove" the bystarter? There is a pretty specific way to delete the autochoke and it's not as simple as just unplugging it or taking it off. If you just unplug the wire that actually makes the choke on ALL THE TIME. Clean the carb, set fuel mix screw to 1 turn then try it.
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I removed it, attached it to the battery and measured how much i came out. It worked fine.
Its closing as it should.
I removed it only so i could test it. Put it back when i was done.
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These little engines can be pretty sensitive at times. Took me awhile, but I finally figured out how to adjust the idle fuel mixture screw. At 1st didn't seem like it was doing anything, now I realized a couple of turns makes huge difference in how runs. Hang in there, they are really fun when running right. Cheers
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the autochoke can be checked easily...start the engine and listen...it runs a little high when you first start it........ then the idle will slows down
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What size mainjet is stock. 2002 or 2003 (not really sure) im gonna try to go up one size and see if it runs better. I mesn it runs like a champ when autochoke is open.
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I want to say 85. I was running a 90 or 92 in mine before putting a kit and pipe on mine.
I may be wrong. My original jet had the size etched into it.
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I think stock jet is 82 or 85, I took out and put in People 50 that had maybe 72 main jet. 1st tried 95 main jet in Super 9, then when weather got hotter changed down to 92, all with stock airbox, but have Tecnigas pipe. Main jet that comes with it is too lean IMO. Mine was bogging mid range, which went away with 95 main jet. Ran very well with larger main jet, but CVT a little out of adjustment, would not shift down if got slowed down going up hill, but from start worked well.
With OEM muffler, 82 or 85 probably about right IOM, based upon how my People 50 2T runs. My 1st go to mod is Tecnigas pipe, really perks up the little guy, but becomes a tuning challenge.
Have Uni air pod, 105 main, 42 idle jet in it now with Tecnigas pipe. Loud, but runs like a champ, pulls up hills, into wind, good top speed, goes approx 1/2" past last line on speedo from time to time. I am running with traffic easily on 40 and 45 mph roads, and I know cagers are going faster than 40 and 45. Get noticed a lot, kids love it, get lots of waves, smiles. Cheers
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MAIN JET (UNLIMITED/LIMITED SPEED) #92/#78
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This is the little problemchild.
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Nice! I'm not sure if I'm a fan of the blue wheels with black body though. I'd imagine blackon black looking meaner.
Any new luck?
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Im not a fan of my blue wheels but its not easy i eimagine to paint rims and getting it to stick. gauges and handlebar + plastic is from a vitality,
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Yeah, the rims would be a pain. Doesn't look bad though. I now see the handlebars. Still decent looking.
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MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
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Well my tach broke and i have a vitality that i rob for parts so...
The decals i bought from a local dealer. They are not the same on both sides but hey!
Who can see both sides at the same time ;)