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Post by dollartwentyfive on Aug 28, 2017 19:33:09 GMT -5
how high is too high?
when the belt starts rubbing the cvt case.
the longer the belt, the higher it will ride, up to a point.
the limiting factor will be the cvt case.
start at the lower end of length, from 28 inch to 29 inch for example.
when the belt starts rubbing the case, then the next smaller size is the largest belt you can use.
also, your weight/contra spring combo must allow complete belt seating on the clutch pulley and complete closure of the variator.
IOW, the above assume you can use the variator/clutch to their limits.
my scoot ran with about 1/4 inch override, but i noticed the cvt case was shaving off about a 1/16 inch on one side.
i believe i was getting just about all i could get.
i'm not sure if i could have gotten more without throwing the belt.
another big drawback is finding odd sized belts.
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Post by dollartwentyfive on Aug 19, 2017 9:55:51 GMT -5
no, a disconnected headlight is not the cause of "no spark"
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Post by dollartwentyfive on Aug 14, 2017 14:02:25 GMT -5
I don't really understand why so many think that the CVT is such a delicate system that just normal road dust from paved roads is debri that will cause problems. another good example are the various belts on your car engine. these aren't enclosed like your CVT is, but they are shielded from inadvertent contact by the car body the PTO on tractors used to be the same way, until a number of fatalities forced the shielding of them. a car driveshaft isn't shielded at all, but it's located at a place where it's almost impossible to come into contact with it while it's rotating. the bottom line is, rotating machinery can be deadly. DO NOT fool yourself into thinking they aren't |
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Post by dollartwentyfive on Aug 13, 2017 14:40:18 GMT -5
There have been times when I haven't wore a helmet, and everytime I don't I get something in my eyes and I can't stand it. Every. Time. It never fails. i tried that . . . once. it was like 90F outside, and i thought i would take my scoot out for a spin. so, out the door i went, no gloves, helmet, boots, or long pants. i got, oh i dunno, maybe a block or 2 from the house, and i actually felt naked sitting on my scoot. i just HAD to go home and dress properly. |
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Post by dollartwentyfive on Aug 13, 2017 11:37:06 GMT -5
my CVT was all metal and it got HOT.
after about 15 miles or so, it would get so hot that you couldn't keep your hand on it for a second.
i came up with a couple of solutions.
the first was to vent the CVT through the intake duct, making the CVT a part of the intake.
i wasn't too sure this would work because of all the rubber particles i found inside the CVT might cause problems.
the second solution was to drill about 9 or 10 nine sixteenth holes right over the variaror fan.
i used this method, and it made a world of difference.
i could now keep my hand on the CVT for 10 seconds or longer, no matter how long i rode the bike.
i DO NOT recommend exposing the internal rotating parts to the open air, nor running without the cover.
this is plain thoughtless and negligence on your part.
a person that is injured by such a thing can cause you a lot of legal woes, like suing your pants off.
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Post by dollartwentyfive on Aug 12, 2017 19:49:01 GMT -5
Leo - I truly believe people like that did in part build the Space Shuttle. I worked on the team trying to rescue it from what they had done but we couldn't because of the great cost involved in just unitizing the design in a CAD environment which was a very sad thing for all involved. Some may also cry bunk on that but I worked with the Joint Chiefs, NASA, British Aerospace and a number of other agencies on that one and there just was not enough money allocated to pull it off. I was there in the thick of it so I know what we discussed in our conference rooms and how many different ways we tried to fix things but alas we were told to stand down and let it pass. There are some folks no matter how brilliant others think they are or they think themselves would have left me no choice but to hand them a pink slip for misconduct if they worked for me. Now before we allow these folks to get us to vent too far and get ourselves banned maybe we should step away for a few and chill doing something we enjoy. No sense in getting ill over this as you need to think more about your wife and family too since they need you so very dearly as they face their existing health issues. I say this with all humility and respect. Kind regards, Rocky i dunno man, the shuttle was an incredible piece of engineering for its time in my opinion. from design to man rated orbit in only 3 flights? the first, a drop glide test, the second the specific landing pattern, the third was the orbital launch. you also have to remember that before the shuttle, there was no such thing as a "flight computer" sure, we auto pilots, but these had a human backup that could take over if the auto pilot failed. the computers on the shuttle had no such backup capability, if the computers failed, the crew was screwed. the shuttle itself was about as unstable as you could get flightwise (imagine attaching a pair of stubby wings to brick) and it was these computers that made it possible, a human crew couldn't make the needed "adjustments" to keep the shuttle stable. all in all, it was an awesome piece of craftmanship. (in my humble opinion of course) |
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Post by dollartwentyfive on Aug 12, 2017 12:05:58 GMT -5
Ive actually never seen anyone do something so stupid on a bike, first simply it won't go into gear at rpm. then there is a difference between a car tranny and a bike tranny. you can depress a car clutch, floor the throttle, and easily put it into any gear you choose. my guess is, a bike tranny lacks a synchronized gearing system. even this wouldn't prevent going into gear at rpm. (i assume you are talking mid to full throttle here). depressing the clutch completely disengages the engine from the tranny, there is nothing spinning in the tranny (except shortly after depressing the clutch). i do not doubt you, but i would like an explanation as to why a bike tranny won't go into gear at rpm with a depressed clutch. you don't even need a clutch (except when starting from a standstill) if you can shift it properly. i've done exactly that with my 4 speed ford pinto. |
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Post by dollartwentyfive on Aug 10, 2017 16:17:38 GMT -5
Dollartwentyfive, Is that on a Reflex with a stock ramp face? it's a chinese bike. yes the entire variator was stock after changing to the 20 gram rollers, mine did the same thing. it would rev to a high RPM, then gradually fall back to a lower RPM, then slowly start climbing again until top end. the OEM rollers didn't do that, the engine quickly went to a high RPM and pretty well stayed there. i tried raising the needle a notch, but it resulted in poor performance. |
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Post by dollartwentyfive on Aug 9, 2017 7:13:59 GMT -5
i found that six 20 gram rollers worked pretty good for my 244.
from the line performance was reasonable, but i did notice i had a bit more acceleration at round top end.
my best guess at my top end was somewhere between 70-75MPH.
gas mileage with this setup was around 52mpg.
no other mods. (drilled holes in CVT cover for ventilation)
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Post by dollartwentyfive on Aug 4, 2017 9:51:58 GMT -5
Hey dollartwentyfive, where did you get the manual valve? I'm gonna switch mine also cause I have the same problem and install a shutoff valve near the seat opening for when I'm not riding. NAPA. it was a briggs and stratton valve and can probably be purchased at any small engine shop. there is a drawback to using a manual valve. namely, forgetting to shut it off after a ride. an open fuel valve, sticky float needle, and an open intake vale could result in an engine full of gas. i've used a manual valve for about 3 years, and have occasionally forgotten to shut it off and have had no problems, but don't ever forget the risks involved. i would like to find an electrically operated valve. |
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Post by dollartwentyfive on Aug 2, 2017 17:18:23 GMT -5
I love wearing my full face helmet on a crisp winter morning. In the summer, in the Houston area; fo'get about it. Too hot/humid for a full face helm. You will be blinded by your own sweat. i found my helmet surprisingly cool on hot days, like around  or so. opening the visor a little bit provides enough ventilation to keep it reasonable. you really don't notice the heat until you stop. i guess that 65mph wind helps a lot. what's with the "welcome back" when i typed the numbers nine and five like ? |
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Post by dollartwentyfive on Aug 2, 2017 9:43:33 GMT -5
if the carb is gravity fed like mentioned above, then it's a simple matter to deal with.
there are 2 or 3 nipples on the carb.
one is the fuel inlet located somewhere on the float bowl.
one is a water inlet from the radiator, and is not really needed.
one is the vacuum operated air cutoff valve.
i replaced the fuel valve with a manual shutoff valve because my ride couldn't maintain the vacuum at WOT to keep the valve open.
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Post by dollartwentyfive on Aug 2, 2017 9:30:44 GMT -5
there are 2 basic problems with scooters, and all 2 wheelers in general.
1. lack of carrying capacity.
soccer moms that have a sububurban full of kids and equipment isn't going to be taking the scooter to the next volleyball tournament.
2. exposure.
i'll brave temps in a car that i wouldn't even consider on a scooter.
in my opinion, neither of the above will be solved and still retain the thrill factor of 2 wheels.
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Post by dollartwentyfive on Aug 1, 2017 16:31:23 GMT -5
i can't imagine getting on my ride without my helmet and gloves.
i'll sometimes skimp on my other gear if it's really hot, but i'll never ride without the above mentioned items.
a full face helmet offers other benefits too.
- it protects your entire head, not only from dumps, but from all manner of airborne debris.
bugs come readily to mind, ive watched a few grasshoppers splat against my visor.
not to mention those bullets called june bugs
- it protects your eyes, not only from the wind, but also from the above mentioned nasties.
- it helps keep you warm.
there is only one drawback to full face helmets, and that is the visor will fog under certain conditions.
there are a number of ways to deal with this though.
i've heard a thin film of liquid soap on the inside will prevent fogging but must be re applied periodically.
opening the visor a teeny bit can help reduce fogging.
a good quality design would probably eliminate fogging alltogether.
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Post by dollartwentyfive on Jul 31, 2017 19:58:19 GMT -5
oh man, the screw down the bolt hole trick.
that's enough to ruin anybodys day.
i'm glad you got it sorted out.
you're gonna love your ride, i promise.
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or so.