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Post by deaninmilwaukee on Dec 2, 2012 11:54:25 GMT -5
Looking for a bit of advice here.
My new used vino is stock but derestricted ( variator washer and exhaust restricter removed)and running a #72 main jet and seems to run pretty good overall. Acceleration from 0-20mph is good enough that I usually beat all the cars across the intersection from a red light.
Now to what I think may require a variator weight adjustment. The bike tops out at about 33-34 mph ( per the speedo), and will hold that even up some fairly steep hills.
What is odd however is that if I have the benefit of a small downhill, the bike will get up to 37-38 or so and will then be able to hold that speed indefinately, until the next larger hill slows it back down to 33-34 again. While going the 37-38 mph, the motors sound changes, almost sounding like its coming " on pipe " and seem to smooth out like its working less hard.
I would like to get this bike to reliably do this 37-38mph as this extra couple of mph mean that cars do not back up behind me on the 35mph road I commute on.
Thanks for the input.
Dean
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Post by teddy554 on Dec 2, 2012 12:02:29 GMT -5
you can try to tune the cvt better try light or heavier rollers and see what works best for you or buy a after market variator with some sliders might put you were you want to be plus somebut buying a expansion pipe that might even put you in the 42-45 range
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Post by suddethtray on Dec 9, 2012 2:53:08 GMT -5
Looking for a bit of advice here. My new used vino is stock but derestricted ( variator washer and exhaust restricter removed)and running a #72 main jet and seems to run pretty good overall. Acceleration from 0-20mph is good enough that I usually beat all the cars across the intersection from a red light. Now to what I think may require a variator weight adjustment. The bike tops out at about 33-34 mph ( per the speedo), and will hold that even up some fairly steep hills. What is odd however is that if I have the benefit of a small downhill, the bike will get up to 37-38 or so and will then be able to hold that speed indefinately, until the next larger hill slows it back down to 33-34 again. While going the 37-38 mph, the motors sound changes, almost sounding like its coming " on pipe " and seem to smooth out like its working less hard. I would like to get this bike to reliably do this 37-38mph as this extra couple of mph mean that cars do not back up behind me on the 35mph road I commute on. Thanks for the input. Dean |
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Post by suddethtray on Dec 9, 2012 2:56:19 GMT -5
i have same prob on my cx50 vino 2005 i have jetted piped done every thing but change the cdi also im 220 lbs and itr never drops below 38 up or down
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Post by deaninmilwaukee on Jan 1, 2013 12:45:50 GMT -5
Ok, I got it apart today and measured the belt width. Spec is 16.6mm ( new ) to 15.0 ( service limit ), and I'm at 13.16mm. The belt actually looks in good condition ( 3300 miles) and I was surprised to find it was that thin.
I will be ordering up a new belt, but does anyone have a feel for how much speed this skinny belt may have been costing me? Perhaps this is whats been keeping me out of the 40mph range?
Dean
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Post by skuttadawg on Jan 2, 2013 0:37:39 GMT -5
Gearing and weights play an important factor in speed
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Post by gregw on Jan 2, 2013 7:33:50 GMT -5
It sounds like your scoot likes to run better at the higher rpm range (the 37-38mph) but doesn't have enough oomph to get past the 33-34mph barrier without a hill. Sounds like slightly lighter rollars are in order. They will keep you at higher rpms while shifting (variating) which should help you accelerate quicker and get to your top speed quicker (as long as your rollars aren't too light). As far as a slimmer belt effecting top speed? yeah, it will somewhat. hard to say how much though, maybe 2-3 mph.
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Post by deaninmilwaukee on Jan 2, 2013 10:42:12 GMT -5
Thats what I thought. I went ahead and ordered dr pulley 5 gram sliders to replace my slightly flat spotted 5.5 gram stockers. I will have to wait till spring though to see how much I will get from these changes.
dean
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Post by carasdad on Jan 2, 2013 13:29:11 GMT -5
Of the many Vino's and Venice's(Twist And Go brand copy of them) Many of them seem to have super light weights...and low gearing. So 0-35 is a zip! For a light guy like me...148lbs..a quick snap of the throttle and I can get a short wheelie from them. Your belt does seem too narrow..so that may be part of the prob and maybe the new slider weights will give a boost as well. If not..you may need to up gear. I have done a few of those for customers so they can cruise at 40...you just lose a tiny bit of your rocket like low end take off speed. But once above 15mph or so...it kicks in and really moves out..  |
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Post by skuttadawg on Jan 2, 2013 15:19:43 GMT -5
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Post by carasdad on Jan 2, 2013 15:37:52 GMT -5
It says they ran a #65 jet in a 70cc kit??..huh?...mine will soft seize with less than a #85 in my 18mm carb. Maybe they used a 14mm or so carb?...  |
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Post by skuttadawg on Jan 2, 2013 15:42:23 GMT -5
My 50 came with a 68 and I ran a 75 and later a 90 with a small uni but still a 50 . I run a 110 with 72cc Uni and MMG pipe . 5 grams was ok for the 50 but its like under drive with a BBK so when it stops raining I will try 8g DrP sliders and 1.5 clutch and contra springs
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Post by deaninmilwaukee on Jan 12, 2013 20:16:43 GMT -5
Due to very unusual weather here ( no snow and 45 degrees) I was able to try out my new mods and got in 22 miles on roads I was familiar with the vinos "before" performance.
The bike is stock derestricted 02 vino, I added new belt, #65 main jet and 5 gram dr pulley sliders.
Before: bike took off good till about 18 mph when you could feel the trans abruptly start shifting, noticably slowing the engine and making 20 to 30mph go slowly. Reliable top speed was around 33-34 mph.
Now, its hard to tell when the trans is shifting as the motor no longer slows, ( probally at 22-23 mph or so), and now the bike charges hard right past 30 mph and tops out at 40 or so. On a big downhill near my home, I used to make around 41 mph, now I'm hitting around 47.
Whats interesting is how the sliders seem to do a much better job than the stock roller holding engine rpm right at peak hp rpm. The engine note is essentially monotone, only the bikes speed varies much with throttle changes. The bike seems much less stressed and quieter, even though its going faster.
I am now able to much more easily keep up with traffic, and the dr pulley sliders, at $26 shipped, have to be one of the most cost effective perforance mods you can make to a small scooter.
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Post by gregw on Jan 17, 2013 13:32:21 GMT -5
Great! A good fix for your motor's mid week spot. Good job
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