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Post by laydback on Aug 10, 2020 23:18:56 GMT -5
Okay all. I lurked for so long that the automated “poke” you to join counter was getting embarrassing. So finally I joined a couple or so weeks ago. I’ve played around with golf carts and pocket bikes, now i’m trying my hand at my scooter. It’s a pretty nice find! About 3 years ago I bought it with about 725 miles on it. It now sits at 907 miles. Not bad for a 2002. When I got it, it would only kickstart... I was told that “everything worked but if you tried the electric start it would blow the fuse and nothing would work”. Turned out that nothing worked period, other than it ran perfect from kickstarting. A bit of troubleshooting and I ended up replacing the fuse, voltage regulator and battery, and all was good. The cables were reversed on the battery that was in it when I bought it. I converted it to all LED and did the headlight mod, and she’s been pampered every since. This spring I did a rebuild on the carb and another new battery, and she starts on the first kick every time. Ohhhhh but you boys are baaaadddddd influences!!!! Brought it home from the campground 2 weeks ago and now it has a tach and temp gauge, side kickstand, and the exhaust fell onto the garage floor and spawned a Yasuni R (already removed both restrictions) Theres also a box in the garage with other cool stuff: Malossi 70cc sport cylinder kit NCY Torque Drive Malossi Fly clutch & bell Malossi Kevlar Belt Malossi Variator Malossi sport clutch spring kit Malossi torsion controller Malossi wristpin bearing Carb jet kit (6mm) #46 pilot jet Clutch holding tool Variator tool 5g roller weights 5.5g roller weights Lucas assembly lube Hondabond Mini files (the Malossi cylinder doesn’t look to need any chamfering) NGK BR9HS (I bought 4 just in case) I’m sure there’s some more goodies I may have forgotten. Did I mention I’ve never done this before?!?! Thanks Zino for the help you’ve already been, and thanks in advance to all that contribute. Zino I’ve been reading your recent posts and the Wild Lion or Silent Pro is what I was initially going with...not sure how well the Yasuni R will be received....hmmm My goal is to build a dependable daily rider that is capable of 50ish mph. My plan is to fit the Yasuni to the stock cylinder and work on the carb jetting. I’m debating whether I need to get lighter rollers for the stock Variator to succeed at carb tuning. I was thinking that from there I would install the Malossi Variator and get it tuned to the right rpm range, and then proceed to the new clutch and springs. My hopes were that from here, I would swap the cylinder and maybe only have some fine tuning on the carb. Does that sound logical and realistic? I’m considering an aftermarket air filter just because the side kickstand tucks so tight to the stock airbox, and it would give space to get my foot in to push the kickstand down. Fire away gang! I’m sure there are things I’ve overlooked and I try to be pretty detailed.
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Sum-azn-kid
Scoot Enthusiast
Posts: 183
Location: Hawaii
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Post by Sum-azn-kid on Aug 11, 2020 0:26:03 GMT -5
IMHO tuning in stages like that is a wasting alot of time. Tuning the pipe to the stock cylinder to only retune when u install the 70cc and than retune again when you change something else seems like alot of time, effort and $ in jets, springs and rollers. Ive only built dio motors so maybe a jog motor is different.
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Post by laydback on Aug 11, 2020 4:59:53 GMT -5
IMHO tuning in stages like that is a wasting alot of time. Tuning the pipe to the stock cylinder to only retune when u install the 70cc and than retune again when you change something else seems like alot of time, effort and $ in jets, springs and rollers. Ive only built dio motors so maybe a jog motor is different. Thanks for your reply. Any chance you can elaborate on what 'you' would do or your familiarity with the build I described? My understanding is that the transmission and carb tuning would carry over to the 70cc cylinder, but perhaps I misunderstood something as I was researching.
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Post by 190mech on Aug 11, 2020 5:34:53 GMT -5
The larger cylinder with different port layout will produce a different torque curve so the CVT tuning will change,also the carb tuning will differ between cylinders too..
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Post by Zino on Aug 11, 2020 6:50:56 GMT -5
The malossi cylinder and pipe are a good combo and overlap very well. I swapped on the malossi cylinder on 3 different builds in the last 2 years . One I left stock pipe, One Wild Lion ,one The Yasuni R The Malossi torque curve is very similar to stock just more power everywhere and revs out a extra 500 rpms on top . The pipe is going to move the cvt tune the most It will require a up jet So on the above Stock Pipe raised the needle one clip rich 5% up jet 84 on stock carb put in one notch up clutch springs . Wild lion same as Stock Pipe. Yasuni R Stiffer Springs Much lighter Weights same jet or maybe one more notch up 2-3 %
If you went pipe first it would be small changes for example one needle clip move 1/4 turn on idle . The cvt really doesnt change
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Post by Zino on Aug 11, 2020 7:03:54 GMT -5
Setting the carb first will work just expect this with that pipe . It will roll slow at take off for about 30 feet then pick up speed and then about 20 mph It will feel like turbos kick in . Since you have a tach pay attention to where you feel that hardest pull .Thta is the Start of your power band . When you swap on your Malossi Variator you will find the weights that will put you close to there when you hit the throttle wide open . Your weights should jump up to rpm when you hit the throttle and never fall all the way to top speed Clutch springs will clean that slow rolling till you get in the power band . Pop in the yellows or greens to see which one cleans that up . You want to jump off the line When you rev it up
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Post by Zino on Aug 11, 2020 7:19:45 GMT -5
Ube is right this will take extra time but you will know in and out how to tune and trouble shoot carb and a cylinder. If you go one step at a time . I spent sunday afternoon swapping from the yasuni to a street pipe I could tell by throttle reponse at all different positions That the jetting was very close . So I left as is The Cvt took some time I have a Delta Clutch so there are a ton of settings . 6 different springs ,3 spring tensions,2 different weights ,3 positions for clutch grab. A standard clutch is way easier .
I found weights that were close for the middle of the powerband .I had 5.5 grams in with Yasuni went to 6 Grams figuring I would need heavier . Dialed in the clutch for best takeoff Had to drop down a big notch in tension. Then just rechecked weights 5.5 gram was spunkier just like the Yasuni 6 was ok .
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ingram
Scoot Enthusiast
Posts: 100
Location: Houston, TX
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Post by ingram on Aug 11, 2020 8:34:18 GMT -5
Hey laydback welcome and thank you for posting your setup! It looks very similar to mine which I am currently building out in my thread so really excited to see how your's progresses as well. I decided to go with the BBK install first which I am just about done with after last night and I am going to get the carb dialed in and then work on the CVT. Currently I'm just using stock pipe so will work with that until I decide to put the Yasuni R on that I just ordered yesterday.
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Post by laydback on Aug 11, 2020 10:02:31 GMT -5
Thanks all of you. I'm sure that as demand for my time continues to get out of control, I will have to deviate and expedite some steps...that's where knowing good starting points and other's experiences will be a great help...I'm already being asked when it's going back to the campground!!!
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jayrod427
Scoot Enthusiast
Posts: 114
Location: Kansas
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Post by jayrod427 on Aug 11, 2020 10:46:01 GMT -5
I'm currently in a very similar situation. Stock bike starting out and so far I've added the Yasuni Z, and played with variator weights, and carb tuning a little. 70cc kit is on order, but bike is riding great right now at 40-43 mph. I'm leaving stock variator for now and prob will never change as I don't really care about gaining top speed, just want to maintain 40-45 no prob in any conditions.
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Post by aeroxbud on Aug 11, 2020 14:03:41 GMT -5
I'm currently in a very similar situation. Stock bike starting out and so far I've added the Yasuni Z, and played with variator weights, and carb tuning a little. 70cc kit is on order, but bike is riding great right now at 40-43 mph. I'm leaving stock variator for now and prob will never change as I don't really care about gaining top speed, just want to maintain 40-45 no prob in any conditions. The Yamaha variator is not very good. The advantage in changing it is it holds the revs more consistently. This would make it stay in the power more, and climb hills better. You would probably gain a small amount in top speed. But that's not the main reason for change. If you are quite happy with it. Leave it and save a few bucks. 😁
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jayrod427
Scoot Enthusiast
Posts: 114
Location: Kansas
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Post by jayrod427 on Aug 11, 2020 14:41:40 GMT -5
I'm currently in a very similar situation. Stock bike starting out and so far I've added the Yasuni Z, and played with variator weights, and carb tuning a little. 70cc kit is on order, but bike is riding great right now at 40-43 mph. I'm leaving stock variator for now and prob will never change as I don't really care about gaining top speed, just want to maintain 40-45 no prob in any conditions. The Yamaha variator is not very good. The advantage in changing it is it holds the revs more consistently. This would make it stay in the power more, and climb hills better. You would probably gain a small amount in top speed. But that's not the main reason for change. If you are quite happy with it. Leave it and save a few bucks. 😁 Maybe mine's worn in just right because it currently holds revs nicely imho. Need some stiffer clutch springs, but once the pipe kicks in around 4,000 rpm it jumps to around 7,500 and holds that nicely until about 25 mph, then goes to around 8,000. After 35 revs climb nicely with speed to around 8,400 at 43 or so. All that with 4.3g weights. prob some playing around needs done, but right now no more than it has done I'm super happy with it.
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Sum-azn-kid
Scoot Enthusiast
Posts: 183
Location: Hawaii
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Post by Sum-azn-kid on Aug 11, 2020 15:04:31 GMT -5
IMHO tuning in stages like that is a wasting alot of time. Tuning the pipe to the stock cylinder to only retune when u install the 70cc and than retune again when you change something else seems like alot of time, effort and $ in jets, springs and rollers. Ive only built dio motors so maybe a jog motor is different. Thanks for your reply. Any chance you can elaborate on what 'you' would do or your familiarity with the build I described? My understanding is that the transmission and carb tuning would carry over to the 70cc cylinder, but perhaps I misunderstood something as I was researching. Ive mostly built dio motors. 4 polini corsas. 2 of them split case ground up rebuilds. From that experience Ive noticed tuning these changes. Even just changing the pipe can mean jetting and cvt changes. Ie goin from a low rpm pipe to a high reving one. U may need to up the main to feed more gas on the topend. Add a stiffer spring to hold the rpms and maybe lighten the rollers a bit aswell. I just finished putting together a minarelli case with a stage 6 crank and polini corsa cylinder the other day. This is my frst jog/horizontal build. The way you want to do it isnt wrong. But ive seen friends go down that road a waste alot more $ only to end up with a fully building the motor instead of "just" what they thought they wanted. One of my friends wanted to try ever other cylinder but the corsa and didnt think he wanted 60+mph so he did a mild malossi cast iron build and wasnt happy with it. Long story short he is now runing the same setup i told him to do from the begining but he has all these extra parts that he wont use and spent $$ on. When he could have just done the full setup from the start. If $$ is an issue just run it stock until u save up your $ for everything. Scooterswap shop did a yout vid about this. Or if its a spare motor build it slowly on the side, as you get the $.
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Post by aeroxbud on Aug 11, 2020 16:04:05 GMT -5
Everyone is different in what they want from a build. My current setup is way slower than the last two builds I did. To some it might be going backwards. But I went with a Polini sport as it's not a toy. It's a bike that is ridden every day. In all weather's. One thing I would say. If you split the engine cases. Fit a good crank. Even if you are not planing on running a big power kit. If you change your mind later, it saves a big job.
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Post by Zino on Aug 11, 2020 17:50:21 GMT -5
Ube is right on the money Know what you want to build too The corsa would be a bigger change to cvt and carb.
The malossi is a sport cylinder Stock crank friendly with the Yasuni R it would like a bigger carb but you can run stock. It will stay under 10 k rpms
The Corsa is a mid race . The stock crank wont last for long Paired with the yasuni R you will be living above 10 k rpms . The power band moves you would most likely need lighter weights . Bigger Carb needed or you will burn up your cylinder.
And Aerox is right Here is my plan If I am splitting a case in goes a Race Crank , Athena Race Bore , Yasuni C16, 19mm carb ,Overrange, Up Gears So I can build a rocket that goes 70 mph and get 20 mpg .
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