Author Topic: video of S9 running badly  (Read 7584 times)

stljimmy

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video of S9 running badly
« on: June 06, 2012, 01:26:50 AM »


What do you think? It is WOT and rolling backwards. I recently changed the plug.  Is it too lean?
Current toys include 08 Super 9, 78 Columbia Commuter, 99 Yamaha Blaster, 82 Yamaha YZ490, 04 SRT-4, 94 F150, and a quick John Deere 70



zombie

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Re: video of S9 running badly
« Reply #1 on: June 06, 2012, 06:20:06 AM »
Everything looks brand new. What else was done to it? There are too many variables to answer from the Vid.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

stljimmy

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Re: video of S9 running badly
« Reply #2 on: June 06, 2012, 05:51:01 PM »
It is an 08 with 659km. It has the technigas pipe with the rollers that were supplied with it, open air filter.  I filed the main jet to around 93mm or so according to a digital caliper gauge. It also has the boss drive mode. I also put a fuel shutoff valve on it.
Current toys include 08 Super 9, 78 Columbia Commuter, 99 Yamaha Blaster, 82 Yamaha YZ490, 04 SRT-4, 94 F150, and a quick John Deere 70



wordslinger

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Re: video of S9 running badly
« Reply #3 on: June 07, 2012, 01:33:29 AM »
..forget the rollers right now...you gotta get your jetting right first, and THEY AINT RIGHT!!!


..FIRST, GET THE REAR TIRE OFF THE FLOOR...and on the center stand...

..every mod (action) necessitates a (reaction) mod..

Peters

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Re: video of S9 running badly
« Reply #4 on: June 07, 2012, 01:47:01 AM »
Take the open air filter off and put the stock box back on. Once you get it tuned with the stock box go from there.
*2010 People 50 2t with 70cc kit and more
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wordslinger

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Re: video of S9 running badly
« Reply #5 on: June 07, 2012, 01:50:49 AM »
..you see how black that pipe has already burned...

..sure sign that your jetting is too lean, and firing very hot...

..put in a 37-38 pj, and at least a 115-120 main jet...

..i have the same setup as you, pipe and filter, with the exception of my oem carb...

..my 04 carb has a bigger diameter slider and carb intake than yours, and i'm running a 38pj anda a 125 main...


..your scoot is running waaay lean, and i'd advise you not to fire it until you increase jets....




peace
« Last Edit: June 07, 2012, 01:58:41 AM by wordslinger »
..every mod (action) necessitates a (reaction) mod..

zombie

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Re: video of S9 running badly
« Reply #6 on: June 07, 2012, 05:08:52 AM »
..you see how black that pipe has already burned...

Wow... You should see the Scorp. Shiny metallic black. Back to the drawing board...
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

Areomyst

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Re: video of S9 running badly
« Reply #7 on: June 07, 2012, 04:42:44 PM »
It also looks like your clutch needs to engage closer to the powerband so that the clutch engages after all that low power/low RPM stuff.  Try that CDI, and get your jetting sorted and I'm sure it'll be much better. 

Thanks for posting the video!

~Josh
www.scooterinvasion.net - Tech help, repairs & tuning.

wordslinger

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Re: video of S9 running badly
« Reply #8 on: June 07, 2012, 09:00:30 PM »
Wow... You should see the Scorp. Shiny

..reason i said that, was i bought two of those pipes, one for nina and one for christine, the 02 ppl that tried to kill me...

...we set up the ppl first, and it was tending rich...pipe burned a nice cool brown, and still is..

..i was tending waay lean at my first attempts on the s9, and very quicky burned the pipe black, to the piont that it burned all the finish off 5 inches down from exhaust manifold...

..that was when i put the oem pipe back on, and started over with just air filter first...
..every mod (action) necessitates a (reaction) mod..

Peters

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Re: video of S9 running badly
« Reply #9 on: June 07, 2012, 09:51:35 PM »
The pipe on my people is f'in blue up to the expansion chamber

Kinda looks cool
*2010 People 50 2t with 70cc kit and more
*2001 ZX-50 beater

wordslinger

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Re: video of S9 running badly
« Reply #10 on: June 08, 2012, 02:09:48 AM »
...dang...maybe i mis-spoke....

..maybe the ppl wass too-too rich, i'm learning, as this is my first pipe-tuning event...

                :o

..my s9 pipe finish burnoff has stopped, tho...since i got my jets right...
..every mod (action) necessitates a (reaction) mod..

Peters

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Re: video of S9 running badly
« Reply #11 on: June 08, 2012, 03:23:05 AM »
Yeah mine stopped when I got the jetting right
*2010 People 50 2t with 70cc kit and more
*2001 ZX-50 beater

stljimmy

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Re: video of S9 running badly
« Reply #12 on: June 08, 2012, 07:39:45 PM »
Thanks for all the help, ordering some jets from Josh
Current toys include 08 Super 9, 78 Columbia Commuter, 99 Yamaha Blaster, 82 Yamaha YZ490, 04 SRT-4, 94 F150, and a quick John Deere 70



stljimmy

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Re: video of S9 running badly
« Reply #13 on: June 08, 2012, 09:31:29 PM »
I bored the main jet out just a few thousands it is in the 95-97mm range.  It ran great last year with the jet how it was in the 93-94 range.  Another thing when I turn the fuel shutoff valve off it will run for a few minutes at idle before it dies.  It will also run good a giving it gas only when the valve is shut off before it dies.  Here are some pics of the plug I just pulled this plug has been in it for this year when it has ran badly
Current toys include 08 Super 9, 78 Columbia Commuter, 99 Yamaha Blaster, 82 Yamaha YZ490, 04 SRT-4, 94 F150, and a quick John Deere 70



zombie

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Re: video of S9 running badly
« Reply #14 on: June 08, 2012, 10:45:33 PM »
Your flooding it. That is why it runs better before it dies.
"They have nothing in their whole imperial arsenal that can break the spirit of one Irishman who doesn't want to be broken."   Bobby Sands...

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