Project "Hog Ryder" 139qmb

[artman4life]

Although ive only recently signed up on this forum i have trolled it for a while to assist me with my scoot. Its time to track my progress with a build thread but i need to do some catching up with what i started with up to where its at now. Lets begin shall we. Its an 08 Roketa MC-02-50B with 139qmb shortcase. A coworker few yrs ago sold it to me for $100 as it didnt run and was sitting outside for a few yrs to that point. Had just under 800 miles on it. I knew nothing about scoots and was basically buyin it as an experiment to toy around with. Heres what i got at the time



Im not a full blown mechanic but i have basic knowledge and grew up in a gearhead family. Ive been working at dealerships for last 15 yrs detailing so i can turn wrenches when i need to. Scoot didnt start and had no battery. Ordered interstate battery and began a teardown of this little toy. Tires are flat. Rotten gas in tank so out comes tank and off comes wheels and tires to replace valve stems












I wish i had more detailed step by step of that process but at this point tank was cleaned out and tires have new valve stems and holding air. New standard carb from scrappys with pod filter and the "Hog" is alive and even passed pa inspection! Now its time to ride 😎








Thats kinda the beginning of everything. Keep in mind this is all from a little over 2 years ago so the next few batch of updates are still reliving past and will get more pic detailed as i get this up to date and for future updated.

[artman4life]

So now that its running i spend that fall getting used to riding it and simply enjoying it. Garage kept for the winter and spring arrives. Ordered koso variatar from scrappys with 6g sliders and a new belt. Helped alot for hills i deal with in my area. Im only 5'6 and 145lbs so the 6g's worked good for me. Long time friend of mine buys a radical toy himself so i suddenly have a riding partner.



Outrider alfa. Scoot always had a vibration to it and i thought rear wheel was out of balance. While out riding with my friend we make a hard stop at one point and scoot shuts down. Wont fire right away but eventually does and rear tire is spinning soon as it fires. Something isnt right. Limp it to another friends shop(where i did the initial teardown and rebuild). Pull cvt cover off and clutch assembly out to find that a clutch shoe had snapped. I bet this might have been my vibration. Forced upgrade time. Another call to scrappy and got the hoca clutch/bell/pulley kit. Really didnt want to separate the assembly so i bought the whole kit to be done with it. Blue clutch and yellow contra springs. Here is the old clutch

New clutch in and we are off n riding again. Seats torn and not very comfortable so off goes the ugly seat and new all black softer seat replaces it. Now its time to do some paint work and puff this thing up a bit



Side panels and front fender now looking alot better. This is during last yr(2016). Replaced the mirrors also but will have to get a closer pic of those tomorrow and try to get the updates actually up to date lol

[artman4life]

As promised here is a close up of the mirror. Found them at monsterscooterparts for about $20 and decided to order them and see what i get lol turns out its $$ well spent in my opinion 
 
They sit just a bit lower than the stockers but for my height they sit almost perfect and dont move around like my originals did. This is now entering last fall and im at lowes snooping around and happen to find this piece of pipe in plumbing section and thought hmmmm wonder if this would fit on the "hog"
 
Thought this would look good seeing an open filter coming out over the cvt but what type of jet tuning am i in for. The carb i got from scrappy had an 82 jet wich worked good with pod filter on the carb. Pipe was same size as carb inlet and pod fit nicely on the pipe. 1st test with it seemed ok untill about 30mph then it hits the lean wall. Ok time to by a few jets and see what happens. Wish i had timea to compare with but i dont. I got the pipe working quite well with an 88 jet and needle all the way up. Gives it a nice growl sound also and simply looks quite cool to me so im very happy with that experiment. I was willing to sacrifice an extra 1-2 secnds on my 0-30 times if it worked but with my cvt set up coupled with this i can reach 30+mph in less than a block in town 

[artman4life]

As the winter months went by i polished a non egr valve cover and got a block off plate so all egr crap is removed and only line i havebis the fuel line and pcv routed up by gas tank. Added some more bling with a chrome plated fan cover and red naraku cooling fan and chrome cvt cover. When replacing the cvt cover i had installed a ncy golden variator and ncy aluminum drive pulley. Having said that when put the new cover on i failed to realize that the cover did not have the bushing for the starter bendix. Amazing how fast you can sheer teeth off an aluminum drive pulley and fry a starter without that bushing but hey lesson learned lol. New starter and bendix and bushing and all is good now although im not having much luck with the golden variator but more on that in later updates. Wish i had pics of the drive pulley but it was tossed and original back in. All is working good now though.

[artman4life]

Found the ncy pulley that i shredded the teeth off of.



Im debating if i should buy another one or not. Had the cvt cover off today to compare the ncy golden variator with my stock variator. Have 6g dr pulley sliders in. With the stocker the andytach reads 8-8800 rpms at wot at 35-40mph. With the ncy i seem to hit a wall at about 33mph and tach reads about 6400 rpms and feels slugish. Used same backing plate and sluders with each variator. Here are some pic comparisons












I marked both with a sharpie and belt trvels to top of both.
When clutch shoe snapped last yr i think it contributed to the koso variator from scrappy snapping 2 of the guide rails. Thats why i ordered the ncy kit in the spring. But since i had cvt cover off i got a few pics of the clutch assembly scrappy has listed as hoca but have seen it listed under other brand on a few diff sites.

[90GTVert]

You could try some 4g sliders in the NCY to get RPM up. Could mix with 6g to be equivalent to 5g as well if needed.

[artman4life]

Would i be better off with lighter wieghts or lighter contra spring. Clutch has "1500" spring in it now. It accelerates decent to 25-30ish but ya can feel the shift change where it "hits" that upper gear and the rpms go from 6500ish to 8500ish. Is that wieght issue or spring?

[90GTVert]

Softer contra springs will lower revs. Stiffer ones raise RPM. Very stiff springs make the CVT harder to service. I prefer something like a 1000RPM contra spring and then tune the weights. That is usually stiff enough to keep the belt under control for me, and not so stiff that I lose speed.

[artman4life]

Been a while since i updated this. Havent really done much to the scoot other riding it. Its now put away for the winter. Ran stock variator with 6g sliders. Changed the dash bulb to a led and secured the andytach gauge better.







Starting a winter parts list. Have a set of perelli's and will be getting a set of wheels soon. Starting to develop a box full of old parts now lol



New exhaust is on wishlist also since have to pull it off to remove wheel i think that classifies as a forced upgrade lol

[artman4life]

Been wanting to update this for a while now but all i have done this summer so far is replaced rear wheel and painted each wheel and added a set of pirelli tyres. Passed the 5000 mile mark and may pass 6000 miles in next few days. I did however purchae a 2015 tao tao zummer from a friend since he got a 150cc scoot. Zummer is still in stock trim with 5000 miles