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Post by cyborg55 on Aug 14, 2017 8:18:19 GMT -5
I done this to mine and I have had absolutely no problems with weather, debris, clothes or body parts getting caught. I had to do something to keep it cooler. Nothing but a hacksaw and metal file to cut and shape and a few passes with a spray paint can to get it done. Also now that mine is in 2 parts I can work on the variator or the clutch without taking the whole cover off. Just remove front or rear depending on which side Im doing work to.
I gotta tell you for being home brew that cut you did is really nice,,,,,looks very professional,,,bravo,, |
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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 lhumpolick on Sept 12, 2017 19:10:17 GMT -5
I did a similar cut out but first I got some JB weld And aluminum door screen and attached the screen to the inside of the cut out with JB weld it has held for over 5 years now with no problems
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Post by lostforawhile on Sept 14, 2017 18:56:27 GMT -5
it's correct about it being structural on a single shock bike, that's part of your swing arm, the bearings in the gear box on the clutch shaft support your wheel. that's why there are so many bolts holding on the cvt cover. Remove the aluminum cover, which reinforces your swing arm, and you lose a lot of structural strength.
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Post by seamus26 on Sept 15, 2017 5:39:26 GMT -5
the bottom line is, rotating machinery can be deadly. DO NOT fool yourself into thinking they aren't There was an account in John Muir's book "How to Keep Your Volkswagen Alive" about a girl working on her Beetle with the engine running. She had failed to put her beautiful blonde ponytail under a cap. After ripping the ponytail off her head with the spinning belt/pulley system, she hung it from her rear view mirror as a reminder. Great book, if you ever have a chance to read it. Oh, and as far as how you clean stuff out of a covered CVT ... Take. The. Cover. Off. |
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Post by lostforawhile on Sept 15, 2017 11:44:29 GMT -5
the bottom line is, rotating machinery can be deadly. DO NOT fool yourself into thinking they aren't There was an account in John Muir's book "How to Keep Your Volkswagen Alive" about a girl working on her Beetle with the engine running. She had failed to put her beautiful blonde ponytail under a cap. After ripping the ponytail off her head with the spinning belt/pulley system, she hung it from her rear view mirror as a reminder. Great book, if you ever have a chance to read it. Oh, and as far as how you clean stuff out of a covered CVT ... Take. The. Cover. Off. you have to do this all the time on a scooter anyway, variator rollers wear out, belts wear, starter bendixes fail, these chinese bikes are not put on the cover and forget about it. i changed all my cheap bolts to button head socket screws with lock washers, then I can take off the cover with a hex key set. much more convenient. If you look at the cover from an engineering point of view, the cover boxes the case opposite the gear box, which supports all the weight on the back of the bike, and it also supports part of the engine case, and boxes in one side of the crank bearings. These engines are based on a Honda design, and honda wouldn't design the case the way they did without a reason |
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Post by chewbaca on Sept 15, 2017 14:53:13 GMT -5
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Post by chewbaca on Sept 15, 2017 15:00:47 GMT -5
Nope, the full weight of the back half of the bike including the motor pushes straight down the shocks or shock into the rear wheel. The case of a single shock is the only functional need for the CVT cover as it's not balanced by an opposing shock
It supplies excellent torsional stiffness to resist the twisting
Of The Imbalance
Unless You are talking about a 50
Then I dont know
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Post by lostforawhile on Sept 15, 2017 15:48:28 GMT -5
Nope, the full weight of the back half of the bike including the motor pushes straight down the shocks or shock into the rear wheel. The case of a single shock is the only functional need for the CVT cover as it's not balanced by an opposing shock It supplies excellent torsional stiffness to resist the twisting Of The Imbalance Unless You are talking about a 50 Then I dont know it is a 50, but any singe shock is the same, the tire still has to hold the weight of everything above it, all the weight rests on that tire, and the only thing holding up the tire is the shaft in the gearbox, and two bearings. those bearings are in the gear box housing, and one is in the swing arm which is both the engine and transmission. The tire not only carries the sprung weight, but all the unsprung weight of the engine,transmission and swingarm casing, plus the rear brakes and the weight of the tire and wheel itself. every bit of weight on the back half of the bike is basically held up by the transmission drive shaft and two bearings. You need every bit of stiffness at that swing arm |
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Post by chewbaca on Sept 15, 2017 16:23:45 GMT -5
I .....don't believe I will ever want to get on a fifty 😱
Not when I weigh a little more than 250lb
On a 150 the gear box is separate from the CVT cover and the axle has lots of bearings
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Post by lostforawhile on Sept 15, 2017 16:42:07 GMT -5
I .....don't believe I will ever want to get on a fifty 😱 Not when I weigh a little more than 250lb On a 150 the gear box is separate from the CVT cover and the axle has lots of bearings it still has a gearbox casing, which is separate, but one bearings, the one behind the clutch, is installed in the swing arm. Any bike with a directly driven wheel is basically the same design, the clutch,gearbox casing still carries the full weight of the rear of the bike. There is no issue with you being 250 on a 50, lots of people ride them that weigh that much, not all your weight is over the back. it's a safe well proven design, as long as everything is installed as intended. |
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Post by chewbaca on Sept 15, 2017 21:17:19 GMT -5
I am very tall so I end up sitting on the back or my knees bonk
The handlebars
I would hope the single shock is good and stiff
I tried using one shock on my 150 just playing around
But I just hit the bumper when I sat down
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Post by viaqua on Oct 22, 2017 18:01:10 GMT -5
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