leaferreefer
Scoot Member
fuck donald trump
Posts: 37
Location: grand rapids
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Post by leaferreefer on Jul 9, 2019 8:27:06 GMT -5
 i have recently got this 2018 peace sports nightsky QMB139. i bought it brand new in the springt, and i have reached the 2,000 mile mark. i wish to get a 47mm bore out kit as well as a cvt upgrade to 1,500rpm springs maybe, or if you guys think i should go to 50mm instead, and get a better crankshaft or something. more or less i want to keep up with the rest of traffic (55 mph would be nice) |
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Post by 90GTVert on Jul 9, 2019 8:55:23 GMT -5
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leaferreefer
Scoot Member
fuck donald trump
Posts: 37
Location: grand rapids
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Post by leaferreefer on Jul 9, 2019 9:05:31 GMT -5
if i bring it up to 80 cc (47mm) do i have to swap out stuff in my cvt? im learning about cvts rn
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Post by tortoise2 on Jul 9, 2019 9:25:26 GMT -5
want to keep up with the rest of traffic (55 mph would be nice) You will NEVER be happy with those modifications! Instead of transforming the 50cc into a pile of excrement, replace with a Peace Sports 808-7G 150, or Lance 169cc. |
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leaferreefer
Scoot Member
fuck donald trump
Posts: 37
Location: grand rapids
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Post by leaferreefer on Jul 9, 2019 9:27:28 GMT -5
want to keep up with the rest of traffic (55 mph would be nice) You will NEVER be happy with those modifications! Instead of transforming the 50cc into a pile of excrement, replace with a Peace Sports 808-7G 150, or Lance 169cc. but then i'll have to get insurance for it. i don't want that |
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Post by tortoise2 on Jul 9, 2019 9:59:42 GMT -5
Check Foremost. Big-bore installations provide additional TORQUE to maintain speed up hills and into headwinds, but very little increase in top speed because the belt drive ratio remains the same. Unbalanced rotational dynamics also enhance the odds of connecting rod and crankshaft bearing failure. |
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Post by jloi on Jul 9, 2019 10:06:59 GMT -5
are you sure about that ? I know different states , different laws. Still you might want to double check. Here in FL.I can get it or not for my 150. If I don't have it I'm required by law to wear a helmet . If I have insurance I'm not required to wear a helmet . Please correct me if I'm wrong .
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leaferreefer
Scoot Member
fuck donald trump
Posts: 37
Location: grand rapids
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Post by leaferreefer on Jul 9, 2019 10:08:25 GMT -5
Check Foremost. Big-bore installations provide additional TORQUE to maintain speed up hills and into headwinds, but very little increase in top speed because the belt drive ratio remains the same. Unbalanced rotational dynamics also enhance the odds of connecting rod and crankshaft bearing failure. then i'll get a better crank, and a bigger carb, and a performance cvt |
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Post by aeroxbud on Jul 9, 2019 15:06:47 GMT -5
Welcome to the forum.
Nice looking scooter you have there 👍
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Post by geoffh on Jul 9, 2019 15:42:03 GMT -5
Welcome,55mph is possible but not probable without a lot a mods and will kill your scoot eventually.You need to reconsider your options I would buy a larger engine scoot to get there,but in the meantime do not ever ride a scoot without a full face helmet on,we fix scoots from here and even road rash but broken heads are a fail.
Geoff
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Post by 90GTVert on Jul 9, 2019 17:44:59 GMT -5
Check Foremost. Big-bore installations provide additional TORQUE to maintain speed up hills and into headwinds, but very little increase in top speed because the belt drive ratio remains the same. Unbalanced rotational dynamics also enhance the odds of connecting rod and crankshaft bearing failure. then i'll get a better crank, and a bigger carb, and a performance cvt That's all great, and I love to mod scoots personally... but if the goal is reliable transport it can be more trouble than it's worth. If you're trying to maintain 55MPH to keep up with traffic on a 139QMB, I can't see it being anything but a pain. Might go OK at first, even though that's high if 55MPH is cruise speed, but problems will come and it gets old quick if you were not expecting to seemingly constantly be wrenching on the scoot. If you just wanna ride for fun and see how fast you can go, then it's a different story. |
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Post by feralsparky on Jul 24, 2019 21:05:16 GMT -5
Yeah, besides if you get pulled over for going over 30mph then the cost savings of just owning a larger bike are gone instantly.
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leaferreefer
Scoot Member
fuck donald trump
Posts: 37
Location: grand rapids
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Post by leaferreefer on Sept 4, 2019 2:30:11 GMT -5
Yeah, besides if you get pulled over for going over 30mph then the cost savings of just owning a larger bike are gone instantly. Youre kidding right? I will never pull over for a cop if im on my moped. I would make a quick getaway |
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Post by farmer54 on Sept 16, 2019 14:15:25 GMT -5
yep he is right here in MI if your bike is over 100cc you need ins. and cycle endorsement. Also 50cc are limited to under 30mph even though I was never pulled over for speed (often 32-35 mph on my 72cc scooter).frank
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leaferreefer
Scoot Member
fuck donald trump
Posts: 37
Location: grand rapids
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Post by leaferreefer on Oct 5, 2019 9:00:13 GMT -5
then i'll get a better crank, and a bigger carb, and a performance cvt That's all great, and I love to mod scoots personally... but if the goal is reliable transport it can be more trouble than it's worth. If you're trying to maintain 55MPH to keep up with traffic on a 139QMB, I can't see it being anything but a pain. Might go OK at first, even though that's high if 55MPH is cruise speed, but problems will come and it gets old quick if you were not expecting to seemingly constantly be wrenching on the scoot. If you just wanna ride for fun and see how fast you can go, then it's a different story. i already bought my 80 cc big bore kit, and the CVT performance parts are working fine. it goes to 55mph without the big bore kit anyways. i just want it to go faster now |
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