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Post by truebluethecat on Aug 2, 2015 14:48:35 GMT -5
Ok so I have on order a 100cc bbk for my gy6 50cc. It comes with red 2k spring set for the rear clutch and a new front variator with 6.5 weights. I've been all over Google trying to dig up info and can only seem to find it for the 150cc set ups. I have a the stock set up right now. The rollers are starting to wear i can see small flat spots on 2 of them so going to be replacing them any ways. The question is this will the 6.5's be ok or should I be looking for a different weight? And the 2k springs, use them? Keep stock? Or get 1.5k springs? My main concern is going up hills. I'd like to be able to at least maintain 30ish going up a hill. Not a monster hill mind you a nice gradual incline. My current set up at 50cc drops down to 15mph and stays there. No safe on a bussy 35mph hill. It's my only disappointment on this scoot. My old 49cc 2 stroke maintained the same hill at 35mph. Maybe I'm jumping the gun asking before I get the kit installed but I like as much info going into a project.
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Post by horace on Aug 2, 2015 20:19:42 GMT -5
See, the thing is, most 150 and 50cc parts are interchangeable in theory. That is why your google results are lacking real information.
The 6.5 rollers will be just fine..... That being said, MANY options are available.
You have done the first step, ( knowing what you want the scoot to do ) A 2 stroke is a much different animal than a typical modern 4 stroke scoot.
Sliders are an option, You could also use staggered weights.. 1 @ 6.5- 1 @6 etc....
NOT RECOMMENDED FOR DAILY USE ----!!!! Just for testing !!!!----- try removing every other roller in the circle so it stays balanced and give it a try........
Go up the same hill and let us know the results. Remember I am NO expert but this step will help in dialing in your tuning setup.
Good Luck!!!!!!
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New Rider
Currently Offline
Posts: 21
Likes: 4
Joined: Jul 18, 2015 1:02:00 GMT -5
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Post by truebluethecat on Aug 2, 2015 22:46:28 GMT -5
Ok cool. I know there's many options. One thing I'd like to do is switch over sliders instead of rollers. I just wanted an informed opinion on this to make sure that running off on this wouldn't cause catastrophic failure some where and destroy a bunch of stuff. And yeah I know 2t scoots are different than 4t scoots in many ways though the cvt on my old 2t was identical to this one.
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Post by steve on Aug 3, 2015 15:02:29 GMT -5
The 6.5's should be just about perfect. Those clutch springs only affect the take off. They engage your clutch at a higher rev, 2K RPM higher, to be exact. What I did was bumped my roller weights up to 7g, and installed the yellow 1K torque spring. You should be happy with the BBK. 30ish up hill should be no problem.
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Post by mikestib1 on May 4, 2016 12:32:29 GMT -5
The extra torque from the BBK will take care of the hills. Don't mess with the roller weights until after you do the big bore.
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Post by phatboy on May 4, 2016 14:53:49 GMT -5
Does your kit include a performance cam too? In my case the BBK alone wasn't as dramatic as I hoped, In my case the addition of an A9 cam really helped the BBK along. YMMV of course.
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Post by rockynv on May 5, 2016 4:50:47 GMT -5
I started with making what I had work right on my 150 meaning adjusting valves right, cleaning and adjusting carb, etc. Once I had the bike all sorted and running correctly for a proper baseline then I just upgraded the CDI with matching High Output Coil for a better spark to get easier starts and a more solid idle which it did. Next I upgraded the scored variator with a Hoca and left it at that because that gave me all I really wanted from the 150 for relatively little cash.
Incremental to me starts with identifying any existing problems with the bike and dealing with them before or possible one at a time while considering upgrades.
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Post by mikestib1 on May 6, 2016 15:43:26 GMT -5
What not to do. Switch from 16g rollers to 10g sliders. My Wolf v150 revs way to much at low speeds.... but now it can wheelie! Going to 12g Koso sliders. Luckily the 10g dr.pulleys were free. Had no idea what came stock and now I can do it right. Also changed the main jet to a 112 which the importer said was stock, funny the jet I took out was a 105. Live and learn.
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Post by rockynv on May 7, 2016 0:51:47 GMT -5
Mike - 12 gram is what Hoca recommends as the baseline roller in their variator for the 150 and to me that felt just about right. In a stock variator I would probably go with 12 or 13 gram sliders depending on your weight and the weight of the bike.
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