KymcoForum.com
Scooters - Big Bore => Xciting 500 => Topic started by: Cortez on September 18, 2011, 10:48:25 AM
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I couldn't find a dedicated thread for this subject, so why not start one!
It'd be great if everyone posted a picture of their Xciting 500 with the aftermarket exhaust you chose,
how happy are you with it (performance changes if any, longevity/build quality etc.).
Make sure you mention if you did any other changes along with the exhaust if you noticed any
performance changes, and if your XC500 is the fuel injected one or not!
Everyone may benefit from this kind of thread!
Shoot!
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i know this is an old topic but i am interested as well. what are some options? who has done what. i have a 2012 xciting 500ri. its fuel injected. i can only find a few options on line and around the $400! range seems rather high. are there any universal slip ons or slipons of the same tubing size that would be viable options. im strictly after a bit more sounds, the bike performs great in my opinion.
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i know this is an old topic but i am interested as well. what are some options? who has done what. i have a 2012 xciting 500ri. its fuel injected. i can only find a few options on line and around the $400! range seems rather high. are there any universal slip ons or slipons of the same tubing size that would be viable options. im strictly after a bit more sounds, the bike performs great in my opinion.
With a different exhaust, it's likely it won't.
;D
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With a different exhaust, it's likely it won't.
;D
Wont perform great any longer?
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Wont perform great any longer?
Different exhausts have a different torque/power curve, even if they might add power at certain
revs (that a stock scooter maybe can't even reach).
What are the chances that the new one you buy will have a curve that fits perfectly in the rev range
you have your scooter's CVT setup for at the moment? 0%. :)
Most performance exhausts actually have LOWER power and torque figures in the mid-range and then
a bit extra at the top, and you gotta tune your CVT to reach that.
If you buy a no-name brand / some random exhausts, chances are you won't get a dyno measurement
sheet with it and will have no way of knowing where that power increase is happening.
9 out of 10 times you'll end up with a louder and slower scooter.
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I have a homemade air filter using Unifoam. Cut out the corrugated in my stock and inserted a cut piece of Unifoam, sprayed with oil of course. Then I added a GPR trapezoid muffler, keeping what they call db killer inside. It's like a baffle. I did not want it real loud, was looking more for performance.
Quicker acceleration, seems to breathe easier, however, at highway speeds the rpms are somewhat higher. So, once at 65 or 70mph, I roll the throttle up, then back off and let the gears change. It did affect highway rpms.
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Different exhausts have a different torque/power curve, even if they might add power at certain
revs (that a stock scooter maybe can't even reach).
What are the chances that the new one you buy will have a curve that fits perfectly in the rev range
you have your scooter's CVT setup for at the moment? 0%. :)
Most performance exhausts actually have LOWER power and torque figures in the mid-range and then
a bit extra at the top, and you gotta tune your CVT to reach that.
If you buy a no-name brand / some random exhausts, chances are you won't get a dyno measurement
sheet with it and will have no way of knowing where that power increase is happening.
9 out of 10 times you'll end up with a louder and slower scooter.
true true, once you start thinking about it and analyzing it... then comes the backpressure debate over time lol
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I have a homemade air filter using Unifoam. Cut out the corrugated in my stock and inserted a cut piece of Unifoam, sprayed with oil of course. Then I added a GPR trapezoid muffler, keeping what they call db killer inside. It's like a baffle. I did not want it real loud, was looking more for performance.
Quicker acceleration, seems to breathe easier, however, at highway speeds the rpms are somewhat higher. So, once at 65 or 70mph, I roll the throttle up, then back off and let the gears change. It did affect highway rpms.
yes i believe i read your thread about your custom UNI airfilter. genius if i do say so myself :) been contemplating it myself as i have an old air filter from mine lying around ;) you mentioned higway rpms around 65-70, what do your rpm's run at that speed?
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I am trying to get a more accurate read with the current air filter/exhaust set up, however, they seem to vary quite a bit depending on terrain and wind. The scoot will now easily run up to 7500 rpms and the speedo keeps climbing. When I roll off some throttle, the gears change or belt tension or something and she drops down to as low as 6500 at 70mph indicated. That's probably about 65 actual mph.
I lilke the way it runs with these mods. The downside is it seems to be spinning more. Still getting an accurate read.
See, I bought a 1994 Honda Magna VF750 motorcycle and have been playing with that. It's a v4 and man is it fun. Not as refined as my scoot. A lot quicker. Had to do a 250 mile round trip the other day and rode it instead of Ruby, my '09 Xciting 500. For longer day trips like that, I prefer the Magna. It gets the job done quicker and the v4 is a sweetheart on the road.
Not as good gas mileage though. Scoot = 50-55mpg. Magna=35-40 depending on how often the throttle gets twisted. My throttle hand seems to have a mind of its own when holding that one.
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Have you done any mods on your Magna?
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No performance mods, it's plenty fast enough. At least so far. No guarantees for the future, though. I have added a Memphis Shades windshield, highway pegs, Saddlemen seat, a couple of things like that.
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I have a new GPR muffler for the Xciting 500 that I am selling. And it fits any others with same size pipe. I bought if for the scooter I traded for a m/c. I am taking pics later today and will be posting in the for sale board later.
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If you will adjust the Pilot Screws 2 3/4 turns out (may have to remove the cap that covers them), replace the 102 Mains with 105 Mains, it will run better and smoother, smooths out the midrange lull before it hits at 5K rpm.
Edit: I forgot to include add a 2mm shim under each needle.
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Very Interesting! But for you Knowledgeable Folks:
I have a 2102 Dink 200i (Yeager) here in the Philippines and have found no local (Manila) source for a Full System (F.S.) that includes the O2 Sensor. But GPR UK lists the following:
KYMCO X-CITING 250 I.E. EXHAUST - LAMBDA SENSOR FS so I am wondering if this would work on my "Little" Scoot??
Input/ suggestions most welcome. Thanks, Chris
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I have a new GPR muffler for the Xciting 500 that I am selling. And it fits any others with same size pipe. I bought if for the scooter I traded for a m/c. I am taking pics later today and will be posting in the for sale board later.
is the gpr, made for the xciting or just universal for the same size pipes. mine being a fuel injected, im assuming the computer would compensate for the higher flow pipe tuning wise. i may be interested :) i have heard the gpr pipes on other bike and i like how they sound. its a straight through isnt it?
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I like the way mine sounds with the baffle or db killer in it. There are 2 in this model, one of which is optional. Yes to the FI computer compensating. I made an air filter using Unifoam from my local scooter shop and the combination of filter and exhaust made a noticeable difference. Once I got my right hand back under control, mileage went up a couple over stock.
It is also maybe 7 to 10 pounds lighter right on the rear axle. Looks cool as well as sounds good.
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I like the way mine sounds with the baffle or db killer in it. There are 2 in this model, one of which is optional. Yes to the FI computer compensating. I made an air filter using Unifoam from my local scooter shop and the combination of filter and exhaust made a noticeable difference. Once I got my right hand back under control, mileage went up a couple over stock.
It is also maybe 7 to 10 pounds lighter right on the rear axle. Looks cool as well as sounds good.
Awesome. Thought so. Ya for EFI lol. I wanna get some sound out of it for sure. With this slip on and your filter, are your rpms noticeable lower at around let say 70 mph. Stock mine are at 6250 rpm at 70mph. I just dont want them to go higher cause around there seems to be the sweet spot for highway mileage and speed as far as efficiency goes. You still planning on selling that pipe?
Also another question since we seemed to have re opened this old thread lol, anyone try out one of the universal slip on shorty style exhausts. I would imagine any slip on would work on these as long as the pipe diameter is the same. I know efi will compensate for it but carbs will need rejetting. I jave seen thing online where people have put pipe of tje same diameter on their scoots and the pipe were made for a different bike but still fit. Make sense. I just wanna get all the feedback I can before I male any descisions. And im sure im not the only one with these questions :)
I know cars and that wouldnt be an issue but seems bikes being smaller scale, little things like these have more of an impact.
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Here's where it gets kind of tricky . . . with the filter and exhaust mods, the engine spins up quicker, acceleration is a bit faster, and depending on conditions, highway rpms can be lower or higher. If that makes any sense. The engine will red-line quick and if I ease off the throttle some, then speed stays the same and rpms drop. It's like the cvt changes gears. It's hard for me to explain as I am not a mechanic. Other people who are more engine savvy can address things like back pressure torque when all the rubber bands are wound tight and . . . well, you get my drift.
Mileage has gone up just a tad, however, I am not all that concerned with mileage. It's the fun factor that counts.
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I am not all that concerned with mileage. It's the fun factor that counts.
100% agree, afterall, thats the reason im lookin into exhaust, more sound, more fun :)