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Post by geh3333 on May 28, 2015 12:40:27 GMT -5
How's everyone doing ? I recently just installed a 1500rpm main spring. I use to run a 2000 main , but with the new variator im using " k&s " it was too stiff. The 1500 rpm main may also be too stiff . I'm currently running 16 gram weights and my rpms are nearly reaching 8000 and the clutch pulley is not opening fully . I'm giving the 1.5k some time to break in and loosen up before I decide to take it out. Im also waiting on 17 gram weights just in case I need them. My scoot nearly pulls a wheely on takeoff. I actually pulled a nice one when I sat far back on the seat ,lol. When it comes to the ratings on these springs . I'm sure now that the rpm rating is compared to the stock . meaning , the 1k spring will start to open 1000 rpms after the stock would start to open . many thought that the stock main spring was the same as the 1k performance spring. However it seems as if this is not the case. Some also thought that maybe the stock main springs were possibly a 500 or 750 rpm rated spring. One thing I can say is that I would expect that the stock main spring would not start to open the same time the stock clutch springs engage . if it did , this would leave no room to run at the lowest gearing. I would expect the rpm rating of the main clutch spring to mean that a 1k performance spring will begin to open 1000 rpms after what a stock main spring would open, and so on with the 1.5k and 2000rpm main. Im not sure if we could even rate the stock main spring. We would have to see at what rpm the pulley begins to open , after the clutch engages. I'd imagine it would not begin to open until at least 1000 rpms after the clutch engages.
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Post by scooter on May 28, 2015 15:15:45 GMT -5
How's everyone doing ? I recently just installed a 1500rpm main spring. I use to run a 2000 main , but with the new variator im using " k&s " it was too stiff. The 1500 rpm main may also be too stiff . I'm currently running 16 gram weights and my rpms are nearly reaching 8000 and the clutch pulley is not opening fully . I'm giving the 1.5k some time to break in and loosen up before I decide to take it out. Im also waiting on 17 gram weights just in case I need them. My scoot nearly pulls a wheely on takeoff. I actually pulled a nice one when I sat far back on the seat ,lol. When it comes to the ratings on these springs . I'm sure now that the rpm rating is compared to the stock . meaning , the 1k spring will start to open 1000 rpms after the stock would start to open . many thought that the stock main spring was the same as the 1k performance spring. However it seems as if this is not the case. Some also thought that maybe the stock main springs were possibly a 500 or 750 rpm rated spring. One thing I can say is that I would expect that the stock main spring would not start to open the same time the stock clutch springs engage . if it did , this would leave no room to run at the lowest gearing. I would expect the rpm rating of the main clutch spring to mean that a 1k performance spring will begin to open 1000 rpms after what a stock main spring would open, and so on with the 1.5k and 2000rpm main. Im not sure if we could even rate the stock main spring. We would have to see at what rpm the pulley begins to open , after the clutch engages. I'd imagine it would not begin to open until at least 1000 rpms after the clutch engages. Stock + 1000, 1500, 2000... That's what I was thinking too. I was also wondering how accurate this is considering the differences in variators from one manufacturer to another. |
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Post by geh3333 on May 28, 2015 22:01:02 GMT -5
The 1500 main spring seems to have broke in some, but not enough yet. I'm not sure how much more it will break lossen up. I ordered 17 gram weights and I just ordered a 1000 main spring. More then likely I'll be using the 1000 main , so now I'll have an ncy 1500 main , and an ncy 2000 main. Both are pretty new . well the 1500 is very new and the 2000 main is pretty darn new itself.
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Post by steve on May 29, 2015 10:25:13 GMT -5
Are they the same size as the 50cc ones?
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Post by geh3333 on May 29, 2015 11:33:50 GMT -5
I don't think so. They are ratednthe same , but I once ordered some main springs and someone sent me ones that were much shorter and they seemed as of they were really weak compared to the ncy and even the stock spring. Actually with the lighter roller weights that the 50cc scoots use , the springs would have to be different.
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