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Post by rcq92130 on Feb 6, 2015 19:53:35 GMT -5
I do, and might do that. Think I still have the OEM rollers too (prob 14 gr).
Unless I'm mistaken, I didn;t get a 30mm carb until AFTER you did (got mine last summer when the scoot was crapping out following a BBK. After several dozen tried with Alley suggesting things - all having to do with getting the right mixture - I finally got frustrated and got a new carb - 30mm just to see - and while it was in shipping found out all along the problem was a bad coil).
So I tried the new carb I had paid for anyway, and after some scrambling to find the right jets the thing works very well. TONS of off-the-line pickup. TONS. No popping or bogging. Well, maybe a slight bit at WOT, but not enough yet that I have been motivated to mess around with it. So I think the carb is doing very well and is properly adjusted. I think I'm getting lots of power out of the scoot - at least at low speeds. Just puzzled at why the rpms are not higher with such light weights. I don't want to normally RUN at higher rpms - just puzzled as to why the thing tops out at about 7200 or 7400, even with one of John's CDIs
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Post by JerryScript on Feb 6, 2015 20:44:23 GMT -5
I'm just going to say one more thing and then ignore this thread, your carb is NOT the reason you cannot reach high RPMs, that's a combination of your CVT weights, clutch springs, and final drive gears.
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Post by rcq92130 on Feb 6, 2015 20:57:00 GMT -5
JerryScript I wish you wouldn't. You are the only one with knowledge who is willing to help. But THANK YOU for pinpointing about the weights/springs/gears. Is there a tutorial about the clutch springs? I think i understand the function of the torque spring, and believe it's correct that will not even cause inability to reach high RPMs (it only affects when the clutch engages, not what happens AFTER it's engaged). But the other springs ... not really sure what they do. Not even sure if the clutch pulley expands and contracts like the variator.
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Post by jerseyboy on Feb 6, 2015 21:02:51 GMT -5
The clutch springs only control when the pads get kicked out into the bell by centrifugal force engaging the clutch,,heavier springs means higher RPM before you start rolling,,lighter,,lower rpm to roll from a stop.
Now the contra spring or whatever its called that sits behind the clutch controls how fast the pulley in the back opens to allow the belt to ride deeper(toward high gear) in the pulley.Stiffer contra means higher RPM before shifting to high gear,,lighter contra means lower rpm to shift into high gear.
I'm no pro but the contra and rear pulley are the same principal as the variator,,just work backwards and use a spring instead of rollers/sliders.
The variator squeezes the belt and the rear pulley pulls away from the belt allowing it to drop deeper through the pulley.
Correct me if I wrong,,cause i am here to learn as well...
Tom
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Post by geh3333 on Feb 6, 2015 21:13:58 GMT -5
I'm just going to say one more thing and then ignore this thread, your carb is NOT the reason you cannot reach high RPMs, that's a combination of your CVT weights, clutch springs, and final drive gears. Thank you . I know u are not choosing sides , but thank you for setting that straight. |
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Post by alleyoop on Feb 6, 2015 21:14:09 GMT -5
The only spring that will hold the rpms back is the CONTRA spring putting pressure on he belt trying to keep it up high on the clutch pulley. Now your Variator is trying to FORCE the clutch pulley apart so that the belt drops down to turn your rear wheel faster . So as you can see the Belt in the Variator is trying to climb up and at the same time forcing the clutch pulley apart so the belt drops down. So the harder it is to OPEN the clutch pulley the more power you need to turn the variator to force the clutch pulley to open. I don't know if you changed the Contra Spring(the one next to the clutch). The CLUTCH arm springs those are controlled by centrifugal force, so if you put in say 1000 rated springs your rpms will need to be around 3000+ before they get thrown out and grab the bell which in turn turns your wheel, But those springs do not effect the loss or gain of rpms.
Hope that helps clarify the springs.
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Post by jerseyboy on Feb 6, 2015 21:31:21 GMT -5
Im thinking a stock contra spring is all we should need to run on these ya know....why make it harder with a stiffer spring,,heck if you had big power a weak contra spring would be bad to the bone!!
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Post by alleyoop on Feb 6, 2015 21:36:02 GMT -5
Im thinking a stock contra spring is all we should need to run on these ya know....why make it harder with a stiffer spring,,heck if you had big power a weak contra spring would be bad to the bone!! You got it BRO, I tried a 1000 and needed 3500 rpms before my trike would even move so I put the OEM spring back and it moves now at 2300 rpms as before. |
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Post by geh3333 on Feb 6, 2015 21:38:23 GMT -5
Im thinking a stock contra spring is all we should need to run on these ya know....why make it harder with a stiffer spring,,heck if you had big power a weak contra spring would be bad to the bone!! After using the 2000 main spring I can never go back , lol . hill climbing and takeoff is so much better and the 2000 main spring still allows for optimal top end. Some think that the 2000 main does not let the clutch pulley open fully at top rpm , but it does. I still have top belt climb on the variator with the 2000 main spring. |
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Post by geh3333 on Feb 6, 2015 21:44:04 GMT -5
Im thinking a stock contra spring is all we should need to run on these ya know....why make it harder with a stiffer spring,,heck if you had big power a weak contra spring would be bad to the bone!! You got it BRO, I tried a 1000 and needed 3500 rpms before my trike would even move so I put the OEM spring back and it moves now at 2300 rpms as before. Do u have an auto enricher ? If so how does your scoot not take off ? I'm guessing your scoot idles around 17-1800 rpms so ? With the enricher running its gonna at least run the rpms up to 2300 |
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Post by geh3333 on Feb 6, 2015 21:52:16 GMT -5
Stock springs are rated at 1000rpms . reg idle for a gy6 is 1700 rpms so that means your scoot should engage at 2700 rpms if running all stock springs. Most I've seen engage closer to 3000 rpms and higher. I say this because i and I'm sure others are wondering how your enricher works without your scoot taking off.
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Post by alleyoop on Feb 6, 2015 22:05:06 GMT -5
That is where you are off a little off, the Stock Contra spring is 600-700, and I have converted my Enricher to a Manual, in summer the motors do not need extra fuel so no extra fuel is needed so with a manual you can shut off the extra fuel. Only time you really need the extra fuel is in cold weather for cold starts and only for about 5 minutes. Alleyoop   |
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Post by geh3333 on Feb 6, 2015 22:10:36 GMT -5
That is where you are off a little off, the Stock Contra spring is 600-700, and I have converted my Enricher to a Manual, in summer the motors do not need extra fuel so no extra fuel is needed so with a manual you can shut off the extra fuel. Only time you really need the extra fuel is in cold weather for cold starts and only for about 5 minutes. Alleyoop All other sites say its rated at 1000 rpm but who's to say they are right ? Im sure your clutch pads like it.lol the Manuel choke will def help with it not taking off . |
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Post by geh3333 on Feb 6, 2015 22:15:52 GMT -5
Even if it is rated at 1000 rpm , I'm sure they break in after a little while just like the 2000 main did , so it sounds right.
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Post by alleyoop on Feb 6, 2015 22:26:24 GMT -5
The enricher only is feeding fuel when you first start it cold, and only for about 3-5 minutes the most and within those minutes it is extending and allowing less extra fuel until it fully extends out and completly shuts off the extra fuel. But while it is doing this the rpms are dropping down to where you have it set. My clutch pads are just peachy keeny I have a NCY clutch which the pads have about 1 inch more material on each arm for less slipping and they do a really good job of grabbing and no slippage so less glazing. Glazing come by when you are very easy on the throttle starting off like creeping around 5mph or less.
Alleyoop
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..BAD TO THE BONE..