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Post by 90GTVert on Jul 2, 2013 8:14:46 GMT -5
If you have a main jet a number or 2 bigger you may be able to drop the CHT a bit without really changing performance. That's not an unreasonable number from what a lot of others say about their CHTs. I'm used to lower temps, but I'm measuring screwed into the head. I have a feeling that lowers the reading vs under the plug.
Sounds like it runs very strong. I'm impressed with those speeds by 8,500RPM.
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Post by 2strokd on Jul 2, 2013 10:01:55 GMT -5
I might try one up on the main, thanks.. I am using the small R/C temp gauge mounted CVT side of the plug, as much out of the fans path as possible. I used a piece of vac hose to hold it all the way against the head good and snug. Its very close (within 10degrees) according to my temp gun. Thanks, im happy it worked out like i wanted. These scooters are heavy, i was afraid the taller gears would kill my 0-30, 0-35 times but it seems it might have actually sped them up? I know its not lost much if any.. It really needed a taller ratio. Honestly, with straight cut, lesser friction gears i wonder just how many scoots would benefit from a taller ratio? I know Skeedr would have for sure back in the street days. Most Zuma,s are geared so short i know they could pull a taller ratio stock. If you compare say a Triton with 10:1 ratio gears to another with 13:5,s the one with 10:1 isnt that much slower on accel stock but will destroy the 13:5 geared scoot top-end.. Lol, well unless it has a 14,000 RPM MHR kit or something? The only way i got Skeedr to top 60 with 13:5,s was to make it rev over 12,000 RPM. These Kymco engines are plenty stout for the size. Ide love to run one on a lighter, smaller scooter some day. The crank cases are much better OEM than the Mina,s IMO. Better flow path, larger trans tunnels. Angled reedblock, more stroke. Just not enough aftermarket! A Mina cylinder will slide right onto the studs tho  With a spacer and some custom exhaust work one might work well on a Kymco? |
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Post by 90GTVert on Jul 2, 2013 11:08:57 GMT -5
From what I've seen swapping gears back and forth, my launch is stronger with deeper gears, but not for long and it depends how well the scoot can get the revs up. T1 with the light flywheel and OR kit showed no benefit, other than the initial part of a second hit I think and it didn't feel as good after only a few seconds on the throttle. The ones that don't have such aggressive CVT setups and such do show benefit up till high speeds. I tried it with the 110cc and it was within 1/2 second to 50MPH 13.55 vs 10.13 (10s being slower). After 50, the 10.13s pulled better. I'm very heavy though, so I need the towing package more than most.
A MinaKymco would be a cool project. Kymarelli?
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Post by 2strokd on Jul 2, 2013 12:04:50 GMT -5
Got a couple 0-30 runs in and it went 0-30 in 4.22 on both try,s.
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Post by 70ccsuperyates on Aug 14, 2013 21:28:49 GMT -5
Well i figured since shes my daily driver for now i might as well open a build thread for my Cobra ;D. We dont have any Kymco 2T builds yet so im gonna have pics, and more pics....And of course, a few vids ... So far this is what she looks like...   I like the yented cover. My uncles isnt like this  I also like the all stock look, and it seems to be doing well at NOT drawing any extra attention lately  ALL stock and 50MPH is no problem Future plans are just body and paint...CF signals, nothing to fancy because i dont want it sticking out at all  Maybe No2 under the seat  damn that thing looks familiar how's the carb comming land or air ? |
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Post by 70ccsuperyates on Aug 14, 2013 21:33:56 GMT -5
Well i figured since shes my daily driver for now i might as well open a build thread for my Cobra ;D. We dont have any Kymco 2T builds yet so im gonna have pics, and more pics....And of course, a few vids ... So far this is what she looks like... I like the yented cover. My uncles isnt like this I also like the all stock look, and it seems to be doing well at NOT drawing any extra attention lately ALL stock and 50MPH is no problem Future plans are just body and paint...CF signals, nothing to fancy because i dont want it sticking out at all Maybe No2 under the seat :-P I like to ride likethis once my scoots done its my first build and I got one of the best playing coach thanks Robert |
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Post by fatboy on Aug 14, 2013 22:30:54 GMT -5
I still can't get over v.I.p stealing your body style!!!f
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Post by 2strokd on Nov 1, 2013 9:52:55 GMT -5
I have noticed a bit of extra RPM than usual lately. This is RPM without the scooter pulling.
I usually see about 7,300-7,600RPM when taking off from a stop at full throttle.
Lately i have been seeing 7,800+ without the scooter pulling as well. I thought maybe it was time for a vari spacer/shim to be removed from belt wear. Or maybe a new belt all together?
I took the CVT cover off to find i was wrong. My rear pulley/torque driver,s inner seal came out (again) letting grease come in contact with the belt. This explains the extra RPM with no extra pull.
After taking the pulley apart i remembered fixing it before (over the summer?) when the seal came out. I just took it out and cleaned it, then glued the same old seal back in as i didnt have one. Since then i ordered one and had the seals sitting on the shelf so i grabbed those and installed a new one.
I did use a bit of glue. Locktights super glue of sorts. This might make getting the seal out a hard job, but i know it should stay in there.
Got it all back together with fresh grease and seals. New set of 7.5g Dr.P sliders.
I put the pulley back together with some sealant under the BB torsion control base so i knew the grease would not come out as soon as it spins. I made the mistake of not letting the sealant set up overnight and paid for it the first ride. I knew better but didnt want to wait.
I noticed in the first block. It was ok at part throttle, but anything over half and it was slipping some.
I took it back apart last night and sure enough, grease had spun right out of the pulley onto the belt and cvt cover, and cases. The vari face was even coated and the color was different were the belt had been. I took it back apart and cleaned it well. Sprayed the cover and cases with de-greaser, then soapy water to rinse the degreaser. Took the belt inside and washed it with dishsoap and as hot of water my hands can handle. Another good way to clean a belt if you can is a dishwasher. Those puppies get hot!
Applied sealant to the base of the torsion control and put it all together... This time i brought it into the house and let it set on the vent overnight.
Today i will ride!
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Post by 90GTVert on Nov 1, 2013 10:11:28 GMT -5
It's so hard to wait overnight when you wanna try something out. I keep doing the same thing.
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Post by 2strokd on Nov 2, 2013 10:11:34 GMT -5
Sometimes.....
I installed it yesterday and went for a ride. Right back on track, cruising 40@6,500RPM or so. Top speed went up a tad with the new weights being thicker and a few grams heavier total weight.
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Post by 2strokd on May 9, 2014 10:47:45 GMT -5
I figured its a good time for an update since the weather is nicer and ive been able to get some miles on the ole truck lately. I recently installed one of these adjustable rear halves because my OEM one was leaking again. I went to get some seals for it and got one like this instead for about the same price. www.ebay.com/itm/adjustable-torque-kit-half-pulley-Honda-Elite-50-Dio-50-SK50-SR50-SA50-/231109171250?pt=Motors_ATV_Parts_Accessories&vxp=mtr&hash=item35cf2e1832I removed the BB torsion control and OEM spring in favor of a stiffer torsion spring. I put the torque driver pins in the slots with the least amount of angle. Making the shift "longer", keeping the RPM higher/steadier. I tried both positions with different weights but found the longer less steep ramps the best for my app. I ended up with a mix of 7.5 and 8gram Dr.P sliding weights. The change really woke the CVT back up, brought more life into it than ide ever seen with this scooter. I always had it pretty dialed in but kept getting seal leaks and fought some belt slip off the line that was getting worse. Also it was getting a nasty RPM drop when the stock driver moved the pins past the 'hump' in the stock ramps. It would drop almost a 1,000RPM at around 30-35MPH and drop right out of the power for a second  . I was able to tune around it in the past with the right weights, spacers, and the torsion control but things just got worn and tired so it was time for a change. Its much more responsive and holds a solid RPM at WOT from 0-50MPH then starts to "gear out" some and rev higher to about 57-60MPH top speed. I am very happy with it other than the mileage. I was getting about 45-55MPG in town and anywhere from 50-60MPG on the long straight runs. Now I am getting a bit less all around. The engine is not working as hard, I can tell by the throttle positions to hold speed compared to the old set-up. But it seems the extra RPM, load or no load is causing the loss in MPG?.. I still need to do some test passes to see if I lost or gained anything 0-30, etc..? CVT,s can be misleading with a gain in RPM. That doesn't always mean a faster scoot that's for sure! Now, the good part! Lol, the reason I sat down for an update in the first place. A couple nights ago I was out for a ride when I came to a stop light behind a man in an older Mercedes Benz (guessing a early 90,s model). I didn't pay it any mind other than the fact it had a huge fart cannon for an exhaust hanging under the bumper. The light turned and I went along right behind him onto a 4 lane road. He went to the inside and I went to the outside lane. I accel to speed like a usually do on that road (or you will get tailed close), and started to pass the guy in the Benz when I heard him accel enough for the cars auto trans to down shift. I figured WTH and pinned the throttle on my very mild mannered Kymco and the guy couldn't pass me. I am not saying my scooter is quick at all, this guy just has a hell of a slow ass car! It literally wrapped out first gear and hit second and was barely at my rear fender. I ended up lifting and slowing to a more reasonable speed on the road we were on. I could see in my mirror he was doing the same. We went on a few blocks at about 35-40MPH until we got caught at a light. This time it was him and I side by side heehee. I looked over but his eyes were stuck on the light. He started to stage the car up while holding the brake and applying throttle as the lights started to turn, so at that point I knew he was going to give his car all hell when the light dropped so I revved my lil 2T in agreement. Lol, it was funny. As the other light turned yellow the guys car jumped forward about 2ft. I couldn't help but think this guy was acting like he was at the drag strip or something, ready to leave on the last yellow?.. the light turned green and we were off! I went into full tuck almost instantly out of habit from the track. I never needed to though.. I never even saw the guy. Could hear his car go through 1st and hit second but then the sound faded so I leaned back up and looked into the mirror to see him about 3-4 cars behind me. We pulled up to each other side by side again at the next light. This time he was all eyes! On my rusty ole work truck lol! He had to have thought "WTF??? I usually have a better chance against those!" The light turned and he went one way as I the other... I smiled and putted on home thinking "dang, that was a slow ass car" And that, that's my version of "a good ass night!" lol.. "Scooter Code!" |
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Post by 90GTVert on May 9, 2014 11:09:29 GMT -5
 Now there's some guy with a Mercedes out there that will always pull behind scooters on dual lanes from now on for fear of embarrassment. That or he'll walk into the local AutoZone and ask what he needs to beat a Kymco.
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Post by 2TDave on May 9, 2014 12:21:52 GMT -5
Great story! Beat by a scoot but how cool his sled is with a fart can. Lol
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Post by 2strokd on May 27, 2014 13:22:20 GMT -5
I finally got around to testing a new camera ive had since last fall. Here it is on the scoot.    I shot a couple vids and noticed right away that the armor was making the audio very dull and muffled. I tried it again without the armor and its better. Now i just need to get the thing more stable. I think for the price (under $50) its a pretty good camera. It would have worked much better on my helmet or any place it wasnt bouncing around with the bumps. |
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Post by 90GTVert on May 27, 2014 14:32:21 GMT -5
With the GoPro they have rear covers with large openings for lower speed riding when being waterproof is not needed. It can make for lots of wind noise though if you don't have a microphone fur piece. Still, you could try drilling a hole in the rear cover or side maybe... unless the mic is there. Don't drill a hole by the mic opening. If the hole lets in too much noise then you can cover it with electrical tape and it should work like the closed case. The reason I'd suggest trying this (unless you plan to do anything underwater with the cam) is I think it's a good idea to protect the lens from bugs and chips and such.
If you want it mounted to the scoot maybe a thick double sided adhesive would at least dampen a little of the vibration or since it looks like you can zip tie it you may be able to put foam or rubber under there. The mount needs to be really secure though because if it can wiggle around it'll make the jolts/vibration look much more intense.
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With a spacer and some custom exhaust work one might work well on a Kymco?
. I was able to tune around it in the past with the right weights, spacers, and the torsion control but things just got worn and tired so it was time for a change. 
