KymcoForum.com
Scooters - 50cc => Super 8 => Topic started by: Gatorballs on May 28, 2014, 11:33:59 PM
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Hope you guys can help me. I bought a 2013 Kymco Super 8 50 2t a 3 weeks ago. I had it derestricted (smooth drive boss, Exhaust, CDI and Up-jetted the carb). Now getting about 36-37 MPH on the flats. I eventually want to go to a Big Bore Kit but for now want to get :
1. New Pipe - Looked at a Stage6 Pro or Stage6 Pro Replica and Yasuni R. Wrote Yasuni but they could not tell me if it would fit. So will probably go with Stage6. Where can I buy one? How do I know if it will bolt up? The websites I go to lists other Scooter models and engines like Minarelli and Piaggio etc. How do I know what kind of engine group I'm in ? I believe it is a KF10AA but which engine style does it match for parts selection?
2. Variator - Looking at Stage6 (They have different versions) which one do you suggest. They have an overrange one too. What is the difference? Also looked at Malossi Multivar and Malossi Multivar 2000. Is one better than the other and why? It appears that the Malossi also come with 9 gram roller weights I was thinking 6 grams was a good starting point and probably looking to go lower at sometime later. Your thoughts? Also what clutch spring?
3. Clutch - Stage6 They have an overrange one too. What is the difference and where can I get one?
Most of the work will be done at the suzuki dealer but they are motorcycle mechanics and haven't had a lot of experience with scooter upgrades and haven't provided alot of advise on parts other than what they find on racingplanet website. Since racing planet doesn't have Stage6 they don't know anything about it.
What parts do you suggest and where can I get them? I live in Sarasota Florida and would prefer someplace in US if there out there. But will buy from Europe or Canada if I have too. Just thought it would be easier to return if they don't fit and of course shipping would be cheaper and faster.
After this round and when I get more money I will add a Big Bore Kit and get a bigger Carb.
Does this sound like a reasonable plan? Any and all comments/advice, links etc. appreciated.
Thanks
Greg
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What exhaust and CDI derestriction did you do ? I'm getting 37MPH with just smooth boss and 82 jet.
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I'm still using the stock exhaust that has had the washer by the manifold taken out. Looking to replace it with a performance pipe.
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You can get 40-45 just by getting the exhaust restrictions off. The hose that connects to the exhaust is the air intake for the catatizer, and the tube that comes off the bottom makes the exhaust gasses fight each other not flowing well. Get those hacked off and welded shut. Also if you have a good kymco shop close the "old" style carb from pre 2007 people 50 fits and with those two mods 50mph easy and lots more low end power. Pm me I can send you old style carb and intake NEW. Race pipes are nice but increase power in the high rpm and I've had people say they regretted getting it, also very loud.
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sh** ton of questions. I'll see if I can help...
Call Louie at SPI http://www.spi-parts.com (http://www.spi-parts.com)
I don't know the engine well enough to say anything for parts. Try Louie, and see. Post up what you find.
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Oh hell psssssss. I forgot.
Stage6RSII That's the clutch you want. I can tell you for sure whatever HP you have that clutch can tune to it. 2-3HP or 15-20HP. It's a smack up clutch.
Get e Jasil/Top Racing variator tho... 2-3MPH better than the Malossi. Never tried the stage6 BUT you can see it is bare aluminum faced.
The Jasil is Chrome Plated on the face.
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I'm still using the stock exhaust that has had the washer by the manifold taken out. Looking to replace it with a performance pipe.
I didnt know there was a washers restriction in the exhaust. Did you have to grind it out or simply pull the washer out ?
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You can get 40-45 just by getting the exhaust restrictions off. The hose that connects to the exhaust is the air intake for the catatizer, and the tube that comes off the bottom makes the exhaust gasses fight each other not flowing well. Get those hacked off and welded shut. Also if you have a good kymco shop close the "old" style carb from pre 2007 people 50 fits and with those two mods 50mph easy and lots more low end power. Pm me I can send you old style carb and intake NEW. Race pipes are nice but increase power in the high rpm and I've had people say they regretted getting it, also very loud.
But we are told in another post the exhaust mod you are speaking doesn't really do much. This is were this forum gets confusing and we don't know what really works and what doesn't. I'd like to attempt this exhaust mod does it need a upjet once done ?
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The exhaust mod DOES WORK!!!! I do it almost daily and I work at the best Kymco shop in town. The large pipe coming off the bottom that goes nowhere really interrupts exhaust flow. The 2013 and later do have a washer in the header also. Stock de restricted I usually get 35-40 ok but really pretty sluggish still. After doing the exhaust mod, 45 easy and much more low end power. You need to go one jet size depending on altitude. Of course you don't get the power gain of a tuned pipe but you retain stock sound and the power band stays lower making the bike better to drive on a day to day basis.
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Next time I make one I'll do a write up and before\after top speed video. Also the old style carb is a humongous upgrade.
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Bettin
How do you have to remove the exhaust washer ?
Is it near where the exhaust flange is bolted? I assume it is as I dont see any other way the exhaust attaches.
Doesnt the real long pipe attach to an EGR or something then up into the bike seat with a flexible hose. Does that whole system then get removed?
TY for confirmation on the exhaust mod.
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If your bike has the washer (Some early '13 dont) It will be right where the flange is. You can just dremell the tack welds out then pry it out with a large screwdriver or pry-bar. The piece on the exhaust that has a hose going to the seat area is to supply the CAT with air to do it's thing. You can just follow that hose up to I believe under the floor area and just tug it out, it's just attached by a rubber clip thing. Just take the exhaust off and bring it to a local muffler shop and ask them to grind off that and the turbulator and weld plugs in the holes left behind. I promise you won't be disappointed!!! The exhaust is really the #1 thing that slowed 50cc bikes down after 2007, if you hop on a 2005 Kymco 50cc they go stock 50mph all day long.
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So just to confirm, the CAT will no longer be supplied as that pipe system is removed.
Just wondering if muffler shops like Midas or Monroe have standard plugs to fill the holes or do they have to Jerry Rig a plug of some sort ?
TY
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Correct no air to the cat if blocked. And they should be able to find something I use flange bolts.
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TY
Now we are getting somewhere with good info. I'll look int to it. But please do a write up sometime in the future.
Excellent data there.
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Bettin, would a quieter exhaust like the Naraku Traffic have the same performance increase (45mph) as well?
I'm a little concerned about getting an exhaust with an expansion chamber because of the noise but definitely am looking for a performance increase.
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Performance = noise. No way around that one.
You could get a Phongeer expansion pipe. They are quieter than most, and are pretty cheap.
http://www.phongeer.com.tw/index.asp?lang=2 (http://www.phongeer.com.tw/index.asp?lang=2)
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The exhaust mod DOES WORK!!!! I do it almost daily and I work at the best Kymco shop in town. The large pipe coming off the bottom that goes nowhere really interrupts exhaust flow. The 2013 and later do have a washer in the header also. Stock de restricted I usually get 35-40 ok but really pretty sluggish still. After doing the exhaust mod, 45 easy and much more low end power. You need to go one jet size depending on altitude. Of course you don't get the power gain of a tuned pipe but you retain stock sound and the power band stays lower making the bike better to drive on a day to day basis.
BandL,
I did the exhaust mod and derestricted my airbox on a '12 like 2t. I upjetted, but perhaps too much (went from an 82 to a 105, now down to 100, going to do some plug chops to see where I'm at). With the 105, it was obviously rich at WOT; am I still way above where I should be with jetting? I got quite a bit more power off the line, but it still planes off around 20 (or is this a transmission issue now?) Thanks!
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BandL,
I did the exhaust mod and derestricted my airbox on a '12 like 2t. I upjetted, but perhaps too much (went from an 82 to a 105, now down to 100, going to do some plug chops to see where I'm at). With the 105, it was obviously rich at WOT; am I still way above where I should be with jetting? I got quite a bit more power off the line, but it still planes off around 20 (or is this a transmission issue now?) Thanks!
If all you did was mod the stock exhaust and pull out the tube from the box, a #85 jet may be all that is needed; some even still use the #82.
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If all you did was mod the stock exhaust and pull out the tube from the box, a #85 jet may be all that is needed; some even still use the #82.
Ok, I will have to drop way back down and see what happens. I was purposely aiming to land on the rich side of stuff and work back lean, but it sounds like I overdid, haha. Thanks for the info!
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Over doing jetting is WAY better that thinking it is right when it still may be lean.
I posted a thread here called "Melted enough pistons to build a bridge." Truth is it would be a small bridge (maybe a few feet) but still. The point is the same.
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...Also the old style carb is a humongous upgrade...
I'm about to launch into these upgrades on a 2013 Super8.... but I can tell you that my old stock 2003 People50 was WAY better than this stock slug 2013 super8 LOL
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which People? Two stroke I assume...
The S8 150 has the ability to surpass the 50cc2t in every aspect except throttle response. Stock they are almost equals.
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Interesting comment, comparing bikes 10 years apart - yes, the EPA has been busy. I have a project 2 stroke and here’s the story. Everyone has the exhaust handled, so the next obvious move is on the other side. The Kymco factory built a 100cc two stroke engine as the power plant for ATVs. The intake is a true 20mm bore and still available. I got mine here http://www.exportstrength.com/product_info.php?cPath=22_878_963&products_id=662 (http://www.exportstrength.com/product_info.php?cPath=22_878_963&products_id=662)
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The next move is carburation. I find the Keihin bolt-on carb just too time consuming to tune - two bolts to wrench off and four more at the bowl. I chose a Dellorto PHBG. The advantage of its spigot mount is significant. Less vibration is transferred to the carburetor and even better, to swap jets you simply loosen one clamp and turn the carb 45° giving access to the bung. I used a Malossi spigot adapter part number M.024690 (also 20mm) and the mount is new technology too. SAE J20 (woven silicon, 300psi, 500°f) designed for supercharger and inter-cooler unions. I got mine from Josh at the SCOOTER GARAGE http://thescootergarage.com/ (http://thescootergarage.com/)
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Bringing all the components together is the easy part. Finding the cable needs to be modified all but wore me out. Keihin style cable end has a snap-in 90° tube. The carb has a ring that secures the tube and releasing it is done with two safety pins and just just the right effort where your thumbs turn blue.
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If released from the throttle tube on the handle bars, you will get enough slack to slide up the collet and remove the carburetor half cable at the splitter. I used the universal style carburetor half cable from a wreck and mated the two.
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That's a nice set up. I had built essentially the same set up for my ZX awhile back.
I wound up using a mid length adjustable one piece cable, and removed the oil pump.
The set up your running will add around 7mph to the bike, and you will get there much quicker. Please keep us informed...
The big bonus is in a few years you can look back to see where you got the parts. Send Josh our love!
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which People? Two stroke I assume...
The S8 150 has the ability to surpass the 50cc2t in every aspect except throttle response. Stock they are almost equals.
sorry for confusion, was comparing my 2003 People50cc 2stroke to my current Super8 50cc 2 stroke
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;) 8)
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anyone else having trouble getting SPI on the phone?
I'm attempting to be a first-time-customer with them, on the basis of this forum recommendation, but this many unanswered calls and no call backs has me thinking of shopping elsewhere....
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Yeah, I just ordered online. And it turned out to be a pretty big hassle, got my parts eventually but it took an eMail saying I was going to get my bank to charge-back if the parts weren't sent. They said in stock on the site, ended up being special order from Italy. After two weeks of not seeing my stuff I emailed, got nothing, emailed again slightly bitchy, got a response saying half the parts were coming from Italy (not a problem waiting, just don't like getting dicked around). Three weeks later and a coupe very unpleasant emails, my parts were marked as shipped and arrived a week or whatever later. I suggest checking out scooter attack, they are in Germany. But last time I ordered my stuff it came IN ONE WEEK!!!!!!! From Germany!!!!!! They know how to actually ship items same day, and they have parts that hardly anyone has in the US. Slightly spendy, but they have some killer parts.
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A few people have had problems getting an order thru SPI. I wish it weren't so but it is.
I (on the other hand) have never had a problem there.
I was looking for another Stage 6 dealer a few weeks ago, and Scooter Attack was the site I found. Never heard of them before but they actually did have the parts in stock.
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Hey guys. I have a 2013 Kymco Super 8 50/2T and it has had the stock exhaust fix and I just installed a 70cc big bore kit. The bike didn't run when I got it. I bought another engine off eBay for it. It's from a 2012, so it's a KF10AA. I installed the big bore kit on the 2012 KF10AA engine, and will be replacing the stock engine. I have a #90 main jet coming for it.
I was told that I need a performance exhaust for it, or it will run hot and damage the engine. The bike has been sitting since last summer. I know the carburetor has to be cleaned thoroughly, and the new main jet installed.
My question is, "Will the stock exhaust work, or do I NEED a performance exhaust?"
Thanks in advance. There is a good possibility that I might be selling this bike when finished.
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I cant really answer the heat question but I cant see increasing air intake significantly without increasing air out take significantly also on a 2 stroke motor.
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Guys,
Have you got any instructions on how or what to do with the leftover air valve that connects to the stock exhaust as I am replacing with a LeoVince TT exhaust?
Cheers.
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Guys,
Have you got any instructions on how or what to do with the leftover air valve that connects to the stock exhaust as I am replacing with a LeoVince TT exhaust?
Cheers.
Pull the old air Tube that leads up under your seat OUT and save it . Its good for nothing now that you upgrade the exhaust.