132cc bigbore stroker project

[pete130]

Hi all in a newbeeeee and im after anyone that has an opinion on my rebuild its an aerox 100cc

And yes i do have 3 50cc as well so please dont say go get a 50cc start again thats easy to do a 50cc everyone does it

So i have a 9 port barrel bridged exhaust port 4mm longer than stock for stroking and porting all alloy came matched ported out of box to my surprise 57mm bore came with 9cc race head and spacers .5 .4 .3 .2 to move barrel up and down for tuning crank is high comp full circle 54mm stroker fit perfect except had to releve case for rod clearense have hybrid ceramic bearings running 28mm or 30mm carburetor with rear mount intake with race engine bracket stage6 went with stage6 full ajustable 112mn clutch polini tauque pully and polini variator Kevlar belt 15/42 gearing full race cdi race coil but have polini digtal but doesnt have battery charge only good for race days lol i did buy a turbokit HQ full race pipe look smoking but they sent a opened bag with swaped factory 2nd street pipe mailed factory got the run around had to get refund wouldnt let me send back and get what i payed for and waited 8 weeks for so im going rs2 tecgins only pipe i can find to buy thinking of the pipe on ebay has 28mm headder what i need and is good to 12000rpm all i need so may get well i have pics and ill post and let you all know how its going thanks for reading

Peter 130

[190mech]

We dont have many 100cc Yamaha's here,would love to see some pics of your build..Ive read that those engines dont breathe well,but there is no substitute for big cc's!!

[90GTVert]

As 190 said, we don't have 100cc class Minarellis here too much. I'm looking forward to checking out any pics and vids and info you care to share as well.

Also, we like big engines just fine here so I doubt you'll be told to go get a 50 unless something you tell us makes us think that's a path you should take. Mine are 50/90 based, but I usually ride 96-103cc strokers. Cost is the main thing that has prevented me from ever trying the 100cc Aerox/BWS/Grand Axis.... engine platform. Not being sold in scooters in the US, they are tough to come by and overseas shipping on everything makes them really cost prohibitive. I've mostly seen pics of them in Honda Ruckus builds on occasion, but those are often done with huge budgets and sadly little detail shared about the performance.

[aeroxbud]

Welcome to the forum.
Will be interesting to see where you go with this.
The General opinion is the 50 is far better to tune, but don't let that stop you. I know when I looked into it years ago there were very few kits. And only low performance options.u
Good luck with the build.

[moofus02]

I like the big motors myself. They don't Rev like the 70's but they make great street rides. I would be interested in more details on that cylinder kit you are using and what your port timings end up at when you put it together. As Brent said the 100cc Yamaha stuff doesn't exist stateside unless you spend big money on shipping and even then it is hard to get someone to ship a motor across the pond. I've seen one set of aerox 100 cases in person, they were used, bare and about 400 usd shipped. Keep us posted

[spaz12]

Welcome to the forum

Like the others here, I'd love to see you share this build on this forum.

[pete130]

Yes i plan on doing a post on full rebuild its still all in bits staryed to take photos of parts and hope it may help others in doing the same sort of build the wealth of knolage here is great ive come to the right place will be needing a lot of opions and im not here to say im right im here to learn and be a great tuner is my goal have bought all the tools i think ill even need ro do just about everything even thinking of lathe got a blasting cabnit and compressers as it wasnt that much dearer to set up to do as it cost to have dome the way i see it next ones free lol and ill be spray painting as well so im hoping to go mad on some crazy builds lol but this is first of manny to come hope you enjoy as much as i do thanks

[pete130]

Little sneak peak at motor polishing

Not finished only at 400 and quickly polished to see if it was going to look good



The start 80 grit long way to go lol

[pete130]

I will post the web sites i found to buy parts from and i think good quality for price aftermarket parts for 100cc 4vp motors are hard to find but lucky its only the motor thats diffrent to 50cc scoot thinking of doing a rear disk on 132cc as well can be done i think anyeay have some idears lol

[190mech]

While its apart,you might consider a bit of 'internal' case work to improve flow;
49ccscoot.proboards.com/thread/10404/case-carter-porting-trench-cutting

[pete130]

Well well i wasnt that shocjed to find expencive hybrids dont fit insie rase to big falls of crank cold and to small outer race falls out of case am i right to think they are not worth a cent you cant have bearing spinning in case it would last a day anyway dont seem to be having much luck with this build mybe better to start another lol its been 6 months of hell finding parts shipping them and having problems with over half shipments im goinv to give it a break till new year lol have a great xmass and happy new year

[190mech]

The bearings should fit the cases tightly,using shim stock around the bearing can be used..I'd stick with good quality all steel bearings..

[pete130]

I few more parts have arrived in last week or so

Got some reeds with not sure if V12 V14 maybe V16 lol




Have the choice of 3 standerd 6 reed race the V what ever number 12 14 not sure yet have some power boysen reeds but not sure to use useing 28mm-30mm carb power jet how do i tell between V12 and V14 is it 2 v 4 reeds is that it or is the size bigger help please

[pete130]

Came with 24mm power jet might use it to run motor in

[spaz12]

Never run the malossi reeds myself, so no clue what you have. There's a good chance someone else here might know though.