|
|
Post by geh3333 on Jun 16, 2015 6:01:09 GMT -5
Actually the ncy has rollers 10 rollers in the starter clutch. So its closer to the first pic , but with an extra roller. I thought it had more , but i can't find the pics of mine that I took .
|
|
|
|
Post by geh3333 on Jun 16, 2015 5:48:29 GMT -5
So, lately I have been building quite a few big bore engines and even though I haven't ran into a problem "yet", I expect soon I may find a need as I'm getting ready to build some high torque and high compression engines that may require beefier starter clutches to go with the performance starters. (I'm building all the way up to 232cc) So, in my searching so far, what I gather is that the high performance starter clutches have more "spraqs" (aka roller bearing)... In addition, some appear to have different style needle bearings. Now, the whole point of these aren't for increased performance as far speed; supposedly the additional spraqs act to distribute the load of the starter clutch, hence being able to support higher compression/torque. Anyone have any insight, experience or first hand knowledge with these?    How's it going buddy? , I have an ncy HP starter clutch, and I really like it. The ncy had many rollers like the second pic and better needle bearings. O don't get the slip like I used to with the stock starter clutch. My stock one when bad and was making a loud weird noise coming from behind the right side engine cover. I was worried it was the crank bearings but I got lucky and found it was the starter clutch. |
|
|
|
Post by geh3333 on Jun 15, 2015 21:47:52 GMT -5
Are the rpms topping out a little over 6000 on a straight run ? If so , you'll want to drop the variator weight. You will pick up speed at takeoff and pick up speed at top end. U want to be able to hit closer to 7500 rpms , without hitting 8000 rpms down hill.
|
|
|
|
Highbeam
by: geh3333 - Jun 15, 2015 21:43:17 GMT -5
via mobile
Post by geh3333 on Jun 15, 2015 21:43:17 GMT -5
I'm going crazy got a 2015 taotao 49cc lowbeam is fine now my high beam will not work, seems like this happend after the bbk was installed my buddy now has the same issue after the install of a bbk what could be the issue? All you did was install the bbk ? What other mods ? Did you remove the engine from the scoot ? |
|
|
|
Post by geh3333 on Jun 15, 2015 20:38:18 GMT -5
I am running 11.5 grams with 3 12 grams roller and 3 11 gram sliders... :-) Try all twelve gram rollers |
|
|
|
Post by geh3333 on Jun 15, 2015 19:17:21 GMT -5
Well I think I need gears but I will lower the weight first and do the sharpie thing. The reason I am saying that is because RPM stay at like 7700 RPM till about 60CMPH or so and then RPM climb after that MPH, I am guessing it is because the belt has reached its maxed and thus RPM start to climb... What size weights are you running ? |
|
|
|
Post by geh3333 on Jun 15, 2015 19:15:44 GMT -5
Sorry, I just got back on , lol .
|
|
|
|
Post by geh3333 on Jun 15, 2015 14:46:49 GMT -5
Let's consider my averages are close , and it seems as if the book used for the my information on air to fuel is a good source . we are looking at some crazy stock numbers . I used the stock number from what I feel is an average number of mpg that many of these stock scoots get. I've heard of some getting nearly 100mpg . my scoot got around  mpg stock. |
|
|
|
Post by geh3333 on Jun 15, 2015 14:33:39 GMT -5
9000 gallons of air to 1gallon of gas is a 15:1 ratio of air to 17.1 is slightly lean , and 11.1 is very rich. 9000 gal of air weighs lbs and 1 gal of gas weighs about 6 lbs . that's where the ratio comes in. |
|
|
|
Post by geh3333 on Jun 15, 2015 14:27:59 GMT -5
|
|
|
|
Post by geh3333 on Jun 15, 2015 14:22:13 GMT -5
The more I think about these calculations , the more I have issues with them . well at least some parts. Like , shouldn't the piston pull in at least the amount of air and fuel to equal the cc of the bore ? Well considering the rings are sealed good , I would expect yes. The more I look at my calculations I come to understand that when it comes to my setup , I am pulling in the perfect amount of fuel to match the amount of air in my chamber. When it comes to a stock setup with  mpg . the amount of fuel the setup is pulling into the chamber only needs 77cc's of air to burn it. So this would be a lean condition. The part that really gets me is , how then is someone with a stock bore able to not run lean and still get or even 80 mpg ? I did these calculations not having a clue how they would turn out , and when it comes to my setup , it seems I'm running the perfect mixture . when I say perfect mixture , I mean I'm pulling in the perfect amount of fuel to match the amount of air pulled in by the 58.5 top end. I do have a question . when it comes to the cc's of the chamber . does the 155cc count the head chamber also ? When it comes to the amount of air and fuel being pulled into the top end , a bigger head size would allow in more air and fuel . I'm thinking it only counts the cylinder space . does anyone have the answer to this ? There's a lot of issues with these equations. Environmental effects come into play with the way fuel is burned, like for example in the mountains or at sea level. In addition, rider weight, scooter weight, speed etc etc... How much fuel are you using at 25MPH, how 'bout 60MPH? etc etc... Can you provide a link to where you're getting your source material at? ------------------------------ If you're wanting to measure your actual fuel consumption, I suggest getting a digital flow meter and installing it inline on your fuel line. (I'm not recommending any of these products, as I have never used them for this application. Just providing a link to illustrate what type of device I think you could use.) I'm a big fan of math, but in this instance, there's a lot of variables. I understand completely . many different variables for how many mpg I'm getting. On average while running the scoot a little harder I get about 60mpg. Its def not 100% accurate , but I tried to make it as accurate as possible by using a relatively average rpm , considering even while running hard , there are stop signs and stop lights we have to consider . to me running her hard , is around 7000 rpms , but taking into consideration the stop signs and stop lights I came up with an average of around 5500 rpms. I'll find the site I got the 9,000 lbs of air to burn 1 gallon of fuel from and post it. Other than that its all math based on an average I got from my setup. But yes im sure its not 100% accurate but I believe it is in the ballpark. |
|
|
|
Post by geh3333 on Jun 15, 2015 14:07:13 GMT -5
If that's the case , check your float needle valve. Its not sealing
|
|
|
|
Post by geh3333 on Jun 15, 2015 14:04:59 GMT -5
I've already cleaned the tank. I will try cleaning the petcock but I'm still confused as to how gas was ejecting from that vent port at the top Yes,I have replaced all lines that fuel sat in as well as the filter Sorry , I should have read more. So fuel was shooting from the top of the carb ? |
|
|
|
Post by geh3333 on Jun 15, 2015 14:00:29 GMT -5
Yeah , 56 mpg is really low for your setup. Even 60 mpg is low . Im courious to hear what it gets when its tuned in .
|
|
|
|
Post by geh3333 on Jun 15, 2015 13:51:13 GMT -5
I always check my rear wheel for movement everything I take her out. I also check the air pressure in the tires. Every so often I'll take a look at the engine mount bolt & nut .
|
|
mpg stock. 
mpg . the amount of fuel the setup is pulling into the chamber only needs 77cc's of air to burn it. So this would be a lean condition. The part that really gets me is , how then is someone with a stock bore able to not run lean and still get