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Old 12-19-2008, 01:01 AM   #1
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Default Scooter Performance Upgrades (Tank 50qt-9)

I just got to hawaii two days ago and my dad bought a Tank scooter, 50qt-9 or something like that.
Its a dog. We drilled a hole through the exhaust baffles (small one). Opened up the carb and adjusted the needle to add some fuel. Now it has great top-end and will do closer to 50 compared to the 25 top speed it had before. The low-end sucks terribly though.
So today we asked a local scooter shop what to do, he said drill out the jet one size larger. We had him do that for us. Now it bogs like a **** on tip-in. It already wouldn't hardly go up a damn hill without some flinstone kicking.

I could just about strangle dad for buying this chinese piece of **** when he could have gotten a Metropolitan, Vino, Vespa, or anything besides this piece of ****. Even our Korean made scooter kicks this things ***.

Anyone know what can be done carb wise to fix this issue possibly? We also adjusted the valves to make sure they were tight enough.
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Old 12-19-2008, 02:24 AM   #2
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re-jet it or shim it
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Old 12-19-2008, 03:21 AM   #3
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What would I be shimming? I don't know jack about this ****. I think it needs a GT15 strapped to its ***.
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Old 12-19-2008, 03:23 AM   #4
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What would I be shimming? I don't know jack about this ****. I think it needs a GT15 strapped to its ***.
what are you waiting for.
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Old 12-19-2008, 04:21 AM   #5
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what carb?
try adjusting the needle one setting lower with the bigger main jet
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Old 12-19-2008, 04:23 AM   #6
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you would be shimming the main carburetor needle(jet), research carbed bikes and incorporate the same things people do with them, with a scooter though I dunno If itll do a whole lot basically it feeds more fuel if running a more efficent intake or exhaust mods, heres a link for a bigger (jet) for what I think you have http://www.xinlingworld.com/scooterp...rch=50&page=11


also a link for engine upgrade lol http://www.scootsusa.com/stroke-80cc-engine-upgrade-belt-drive-p-114.html
that link has tons of parts rev unlimters etc...
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Old 12-19-2008, 10:50 AM   #7
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already getting the haole treatment?
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Old 12-19-2008, 12:01 PM   #8
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Meg's chinese "50qt" runs line a *****, always has. Does 45 with the two of us on it. Buy it for $500 and ship it out there. Only 98 miles/1 tank of gas thru it.
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Old 12-19-2008, 10:40 PM   #9
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Quote:
Originally Posted by turbobluemiata View Post
you would be shimming the main carburetor needle(jet), research carbed bikes and incorporate the same things people do with them, with a scooter though I dunno If itll do a whole lot basically it feeds more fuel if running a more efficent intake or exhaust mods, heres a link for a bigger (jet) for what I think you have http://www.xinlingworld.com/scooterp...rch=50&page=11
also a link for engine upgrade lol 4 Stroke 80cc Engine Upgrade Kit - Belt Drive - ScootsUSA - Buy a gas
that link has tons of parts rev unlimters etc...
I think that guy screwed us on drilling the jet out like he did. It's just too much. We have shimmed the needle up and down, it has 3 shim slots for the c-clip and we've tried them all. I think we're going to get an original jet and leave everything else alone for now.
We're changing the clutch weights out now to try and get it to wrap out more before engaging.

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already getting the haole treatment?
Dad really got screwed on the p.o.s.. The dealer wouldn't let him test drive it and he gave him a shitty deal. Dad is normally a man of great common sense and good business deals, though he dropped the ball on this one big time.
Outside of that, no haole treatment really. We know enough locals and my family has been here more than long enough to be considered locals.

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what carb?
try adjusting the needle one setting lower with the bigger main jet
We've done up and down around upside down inside out. Seems we have something that will work now so its time to take it down the road and see how it works.
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