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Messages - chaz35

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676
Super 9 / Re: have stock carb, what jets to order?
« on: November 23, 2014, 03:33:45 AM »
My airbox is in, just the tube from the opening attached to the inside of the left body panel is disconnected.  It doesn't run any different than when completely connected, just allows me to easily choke the carb.

Good test on the autochoke.  I think it's working OK, because engine settles down after it runs awhile, like the choke is off.

Yes, it's fun to see improvements.  I really enjoyed minibikes and I am an expert on Honda G100 clone engine, can make them really sing.  Hope to be able to do the same with scooters.

Cheers

677
Super 9 / Re: have stock carb, what jets to order?
« on: November 22, 2014, 09:35:12 PM »
Good tip on cleaning carb.

I didn't read your post before I changed out slow jet back to 35 and changed main jet to largest one I have 95.  Had a little trouble with air leak where airbox mounts to carb.  Runs pretty good now, doesn't lay down when I give it some gas, still maybe needs larger main jet.

The 38 slow jet I got was aftermarket and maybe defective.  Seemed to be as lean or leaner than 35 slow jet, so I put the 35 slow jet back in.  Still haven't tested starting with cold engine.  Still have top of airbox disconnected so I can choke it if engine tries to die before it has warmed up.  If still doesn't start and stay running without having to choke, I will probably order another 38 slow jet, but this time Keihin OEM, not aftermarket.

Carb is responding to idle speed and air screw adjustments now.  I don't think it's dirty, runs too well for that, plus I already cleaned it really well, soaked it in some brake cleaner for several days, took that long to get it clean.  Cheers

678
Super 9 / Re: have stock carb, what jets to order?
« on: November 22, 2014, 05:04:19 AM »
Yes, have been playing with air screw adjustment, doesn't appear to do much with my carb.  Service manual says if 1/2 turn on air screw doesn't effect idle, may have some other issue?  So, I guess my carb is not working right in that regard.

679
Super 9 / Re: have stock carb, what jets to order?
« on: November 22, 2014, 12:19:06 AM »
Got jets and installed 38 slow, 90 main.  Was hard to start, because it flooded engine.  Took me awhile to realize engine was flooded, but once I did, I got it started (start with throttle open).

Not there yet, but definitely runs better.  I am going to run it a little more and separate the CDI green wire before I change the jets again.  Then, will probably go back to 35 slow and try 95 main.

I was able to determine I had 35 slow 82 main jets in original carb.  I got as used scooter, so maybe changed from factory, but that's the way I got it.

Also, I bought after market jets, which are OK, but pretty hard to read marking.  Next order, I will probably pay a little more and get OEM Keihin jets.  Ciao

680
Super 9 / Re: Tuned pipe muffler delete?
« on: November 22, 2014, 12:06:30 AM »
When you get old like me and can't hear anything you will wish you had left the muffler on.  Just saying...  Actually, a properly tuned expansion chamber engineered with the muffler will probably not perform as well without the muffler, which is part of the total design for that particular pipe, that's the way I understand it.  Cheers

681
Super 9 / Re: dies at idle after running fine
« on: November 21, 2014, 04:26:31 PM »
I get mine to start easy by choking the airbox with my fingers.  1st you have to disconnect the hose coming from the left plastic body panel to expose the small round opening at the top of the airbox.  Then, just use your 2 fingers to cover it.  My engine will start up, then rev up and die.  After I choke 1 or 2 times it will settle down and idle nice.  Without choking it, will take forever to start.

If dying at a stop after you have it running you have some other issue.  Don't know, but I think vacuum petcock could be your problem.  Try disconnecting fuel line and turning over engine with ignition off to see if a fair amount of fuel is coming out the carb (open the carb drain and put a can under the drain outlet to catch fuel).  Maybe fuel filter is clogged.  Good luck.

682
Super 9 / Re: in search of battery cover and glove compartment cover
« on: November 20, 2014, 03:29:29 PM »
try Kymcospareparts.com or use kymco p/n for what you want and search on web...

683
Super 9 / Re: have stock carb, what jets to order?
« on: November 20, 2014, 03:25:40 PM »
good info, still waiting for my jets to come in...  My CDI has green wires connected with bullet connector, 03 S9 LC.  Cheers

684
Super 9 / Re: have stock carb, what jets to order?
« on: November 20, 2014, 02:19:43 AM »
By BBK do you mean aftermarket airfilter?  I may do that at some point, but for now just want to get stock airbox to run right.  Today it was warmer, and started up easy and ran a lot better, but I think still lean.  I will post update as soon as jets come in and I can try them.  Ciao

685
Super 9 / Re: have stock carb, what jets to order?
« on: November 18, 2014, 02:23:53 AM »
I know slow jets not supposed to effect wot, but my experience, if you go up on the slow jet (idle jet), it will richen top end.  So, I ordered a 90 main, because I also plan to go to a 38 slow jet.  I am thinking it will run like a champ when I get the right jets in it.  We will see.  Cheers

686
Super 9 / Re: have stock carb, what jets to order?
« on: November 17, 2014, 09:13:45 PM »
I don't know what to do, so ordering following:  90, 92, 95, 98 main and 38 slow jets.

My logic is, I think carb has 78 main jet/ 35 slow jet right now, because I think the cdi is still restricted (green wires are connected) and service manual says carb jets are 78 main/ 35 slow if limited.  Unlimited should be 92 main jet/ 35 slow jet.

I saw post People 50 section where went from 70's main/ 35 slow to 90 main/ 38 slow and was easier to start and ran a lot better.

Once I figure out what my carb jets are I can go from there and order more jets if I needed.  Cheers

687
Super 9 / have stock carb, what jets to order?
« on: November 15, 2014, 11:35:06 PM »
Got 2003 S9 LC to run and drove around the neighborhood some.  Runs OK, but appears lean, very slow to warm up, boggs at lower rpms.  When it comes up on the pipe it takes off, but I hesitate to push it until I get a chance to test it out more.  Air temp was in the 40's fahrenheit all day, so fairly cold.

Service manual says carb has #92/ #78 main jet (unlimited/ limited speed) and #35 slow jet.  When I took carb apart to clean, jets didn't have any markings that I could recognize, so I don't know what I have.  Also, the CDI green wire is connected, so I think it's still restricted.  Scooter has nice expansion chamber, I think came stock with it.  I think CVT has been opened, but didn't seem to slip that much, but really don't know if modified.  I plan to keep stock airbox, because of nose concerns.  I know from kart racing, the loudest engine sounds come from the carb, not the exhaust.

I did some research, I think I have Keihin PB16 carb and found I can order some jets from jetsrus, thanks to some postings on this site.  Any recommendations on jets to order, main and slow?  Assuming I have #78 main jet and #35 slow jet.  Thanks


688
Super 9 / Re: super 9 lc dc cdi or ac
« on: November 15, 2014, 02:14:43 AM »
When I originally got scooter, battery was dead.  I took out the battery, pulled the carb and cleaned it.  I put back in the carb and tried to start w/out the battery and no spark.  Later I got the battery I ordered, installed it, and had spark.  Now I don't think anything was really wrong with the scooter except dead battery,and clogged carb.

No worries, I learned a lot about my scooter, and like it more than ever.  I still haven't ridden it yet, I am still putting on the plastic, getting it all back together.  Maybe ride tomorrow, but weather is cold.

689
Super 9 / Re: super 9 lc dc cdi or ac
« on: November 14, 2014, 06:11:51 PM »
So, with 2003 Super 9 LC, which you say is DC ignition, you have to have a charged battery to have spark?  I thought I could run it without a battery, but no spark.  Put in a fresh battery and it runs.  If I had know this, would have saved my a lot of trouble.

690
Super 9 / tach doesn't work
« on: November 13, 2014, 05:30:25 PM »
My tach needle is pegged to the right.  I took the plastic cover off and moved it back to zero.  It actually worked for a little while, but it's back to being maxed out again.  Is there something to check for that might be causing this or do I just need to replace it?  Thanks for any replies.  Cheers

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