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Post by knives87 on Mar 24, 2023 22:19:48 GMT -5
After lurking around for a couple of days, I decided to make an account. After owning a 4T moped for a whopping 3 weeks before it got ganked, I now own a used Roughhouse. I was told everything was stock. It came with a bunch of parts that the gentleman never had a chance to install before he went out and bought a motorcycle. Gave me a 70CC bore kit, a 17.5 carb, a belt and a variator kit by Malossi and jet kits for the stock and new carb. Now this is the second moped I ever own and the first 2T. My understanding is an exhaust is the most important upgrade for the bike. Which exhaust can actually fit on my bike without me having to modify anything? Second question, does installing a variator kit require tuning after install? I figured I can install the bore kit and carb myself once I figure out the exhaust situation. I took the bike to a local shop to install the variator kit. After the install, the bike seems to run smoother while I'm accelerating. However, I'm stuck on 30MPH on the speedometer even at full throttle. Before, I was able to hit 35 with maybe 3/4 turn of the throttle. 42 was the max speed I was able to hit at full throttle. Is the speed reduction normal after a variator kit install? The kit had a yellow spring and I'm pretty sure the roller was 7gs. The old one that was in the bike was a red spring and 7g Dr pulleys. Had to use a kitchen scale to figure that out :/ Did I jump the gun by install this kit before everything else?
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Post by repherence2 on Mar 25, 2023 0:54:18 GMT -5
i think it is a roller weight issue as it stands.
internet says yellow malossi spring is +1500. the red NCY spring that i had was +2000. the yellow NCY spring that i ran was +1500.
there was a scoot forum called provoscooter years ago. the administrator had a thread on rollers and sliders. if i recall correctly, he said the sliders had to be 0.5 grams heavier than a roller to have similar shifting performance. to me it makes total sense. sliders have a larger sliding surface than the 2 contact points on a roller weight.
virtually, 7 gram Dr Pulleys with a Red spring and 7 gram rollers on a yellow spring, are 2 very different setups. i think you need lighter rollers.
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Post by Zino on Mar 25, 2023 7:12:25 GMT -5
I have a roughouse with a malossi variator with dr pulley sliders variator and medium contra . The ncy red spring is very stiff and hard to compress compared to the malossi yellow and is not needed . Repherence is correct the NCY and Malossi yellows are both medium contras and hold back shifting the same I have NCY on one Roughouse and Malossi on another. Here is a quick guideline for contra/Torque springs to variator weight relationship. Stiffer Contras need heavier weights to over come them. If you go down on stiffness in contra drop your weights a half gram. This will give you similar shift points . which malossi belt part # do you have in there . It is probably smaller than stock belt . Here is a thread showing a discussion about belt sizes and the variance by the ways manufactures list them . 49ccscoot.proboards.com/thread/28919/malossi-belt-size-verification |
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Post by Zino on Mar 25, 2023 7:16:09 GMT -5
do the sharpie test on your variator run a marker from inner to outer edge and run down the road full blast . And measure how much is left . I bet you have more than 5 mm left and you are not getting full travel. this is after a test with a properly shimmed variator i have less than 1 mm on inner and outer edge of the NCY variator .  |
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Post by knives87 on Mar 25, 2023 12:52:58 GMT -5
I think I figured out why with rep help through PM. The shop followed the instructions to the T and installed the limiter/restrictor. Going to go back and have them remove it and report back. Zino, it's still a stock belt. I still have the malossi belt sitting in a box.
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Post by aeroxbud on Mar 25, 2023 18:06:56 GMT -5
Until you do some engine performance upgrades, I would just leave the stock spring in it if you were happy with the way it worked before.
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Post by knives87 on Mar 26, 2023 2:15:18 GMT -5
That limiter was the culprit. Now I'm back at zooming around low 40s. Do you guys have any recommendation on which exhaust goes with a 70CC malossi sport bkk and a 17.5 carb? I'm not trying to race or hit the highway with it. I do a lot of stop and go and some hills (average around low 20s)
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Post by Lucass2T on Mar 26, 2023 2:55:07 GMT -5
Yasuni R all day
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Post by Zino on Mar 26, 2023 10:13:57 GMT -5
yasuni r and malossi sport paired are a solid combo its loud and proud
it would add add 5-10 mph when dialed in right.
You will have to modify the exhaust bracket and lose the fender for this exhaust.
You will need lighter variator weights ,stiffer clutch springs to start up in the power band
If you want that sleeper look and want to have close to stock sound grab a malossi wild lion exhaust
you would add 3-5 mph and your stock cvt settings would be close to right buy slighly lighter weights and stiffer clutch springs make a difference .
I also had to use a dremel to extend one of the brackets holes to make it fit better
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Post by repherence2 on Mar 26, 2023 11:41:19 GMT -5
That limiter was the culprit. Now I'm back at zooming around low 40s. Do you guys have any recommendation on which exhaust goes with a 70CC malossi sport bkk and a 17.5 carb? I'm not trying to race or hit the highway with it. I do a lot of stop and go and some hills (average around low 20s)
im happy for you knives87. i glad that i was helpful. |
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Post by bigmatthew86 on Mar 26, 2023 13:13:51 GMT -5
The Yasuni R is definitely stronger but is also definitely louder. The wild lion is much better than stock & not much louder. Decided what you & then make your decision. I’ve had both & the Zuma with Yasuni is gone but the vino with the wild lion is in the garage.
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Post by knives87 on Mar 26, 2023 18:30:18 GMT -5
That limiter was the culprit. Now I'm back at zooming around low 40s. Do you guys have any recommendation on which exhaust goes with a 70CC malossi sport bkk and a 17.5 carb? I'm not trying to race or hit the highway with it. I do a lot of stop and go and some hills (average around low 20s)
im happy for you knives87 . i glad that i was helpful. Thanks for the help! Quick question, how strict are the safety inspection out here in regards to exhaust pipes? Would it be a auto fail if I show up with a R? Zino you mentioned there could be a 3-4MPH with the Lion, is that just with the exhaust by itself or the entire upgrade? (BKK,exhuast and carb) If that was just for the exhaust. What is the potential top speed with the entire upgrade with the Lion? And with the R? Thank you for all the help. |
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Post by bigmatthew86 on Mar 26, 2023 21:58:26 GMT -5
Only way to gain more speed is more rpm or taller gears. The 70 kit might gain you a few just because more power lets you pull the factory gearing better. I’d guess with a street pipe & 70 kit you’re probably at a solid 45-50. Yasuni probably 50-55 but I don’t know how a roughhouse is geared. Street pipe is much like stock but stronger & pulls a little longer. Yasuni is going to shift the power band up so you’ll need to tune the cvt to make up for that.
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Post by repherence2 on Mar 26, 2023 22:15:30 GMT -5
Thanks for the help! Quick question, how strict are the safety inspection out here in regards to exhaust pipes? Would it be a auto fail if I show up with a R? Zino you mentioned there could be a 3-4MPH with the Lion, is that just with the exhaust by itself or the entire upgrade? (BKK,exhuast and carb) If that was just for the exhaust. What is the potential top speed with the entire upgrade with the Lion? And with the R? Thank you for all the help.
as far as "strict"ness, i do not know, im runnin' "outlaw" right now.
however, i think it is 85 decibels at 15 feet away at half throttle.
so, i think in your case, just keep your stock exhaust and air box and install them when you have get the annual safety check. basically, you would be down tuning the bike every time you take it in for a safety check.
if not, look for another engine that you can build on the side. you can keep one "stock" and have one that is Modified to your liking. then just swap out the engines with you need to get safety check. at least you would always have a "back up" engine.
after changing my stock GTX (49cc) exhaust to a YMS V8, i gained 10 mph. i think the Wild Lion is in the same category as the V8 so i would assume the sound level is similar. V8's are fairly quiet. half-wave exhausts out of Taiwan.
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Post by Zino on Mar 26, 2023 23:35:13 GMT -5
Bigmathews experince with the zuma and vino crosses over to the roughhouse .
I have run both Zumas and roughouses and vinos .
The stock roughouse gears are the same range as the 2008-2011 zuma .
If you go kit or pipe first you will be on the low end of the 3-5 mph range
the both push power past 9k rpms and can push you to the top of the range and over
The carb adds a little bit more to feed the beast ,
I like it best for how it feeds the top end and mid range better than stock carb for both performance and cooling .
Stock carb has a non adjustable needle so as you get to higher rpms builds hotter cylinders or the Yasuni R you need to move beyond the stock carb .
The Yasuni R and Malossi combo will push to 10k rpms that is where the extra top speed comes and the need for the bigger carb .
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