first 5 mods to make

[frogleapin]

Hi everyone,

 Beginner newb admittingly but I cant seem to put it aside so.... here I am.


I'm wondering what the first 5 performance mods I should make so the scoot goes faster n quicker.  its a 2018 Zuma four stroke water cooled slug....it just a little too slow for my needs and way to slow for my desires.  Trying to find a middle ground to safely ride on.

I've been looking into 44mm big bore kits and was ready to buy and then I saw that there is a 47mm kit and now I wonder which to get.  Polini seems to be the best at this stuff so id like to go with them.  What else should I do to it? especially would like to do a few mods at once here since ill have most of the bike apart to put the cylinder on. seems like final gears are popular. Mods to variators or completely switching the out too is also popular.  I see air filter mods I see exhaust mods.....all these mods and i am beginning to understand what they do and their potential to aid performance.  Will I need break upgrades?  Do i need a tuner?  what does the tuner do exactly?  varies the injection rate.  Should i try using various sizes of jets?  help me break all this down to the top 5 mods that should come.  Ill say the bbk is #1 but which one to get and what will best accompany it best.  hers my list... tell me where ive gone wrong and why, just dont castrate me too badly or maybe just take one and leave the other for me.  I got thick skin so rip as you please.  and thank you to those contribute.....I'm defiantly enjoying riding the scoot and getting the chance to work on it an learn a bit too.

1. 44mm bbk
2. final gear
3. exhaust swap
4. variator mods
5. air filter

[bullybike]

forget that final gear

Get a variator with better ramps and some wedge shaped rollers cheap glix pro is okay

learn how to use a sharpie to test overall variator belt travel.
a lot of speed is locked up if you learn how to grind a variator and clutch pulley. all about belt travel

Also yes do the 47mm. Make sure you hone the cyclinder out a little soften piston edges, do file the ring corners ends; port the cyclinder head valves if you are serious.

I like to use permatex gasket sealer.
a decent cam is worth 20bucks but no not all A9 are same

oh and learn how to jet a carb. reduce intake air restrictions.

oh and find some 40 weigh diesel truck oil gna need that frsh with big block

[bullybike]

if you find your top end is still not enough get yourself a top quality biger rear tire, its like a final drive gear but aticky!🎡

[bullybike]

oh and i hear u a little newby paper thin knuckle skin tailess service department free coffee drinking homosapien.
😂

[Zino]

this guy put a good 4 stroke build together and he posted his progress on zuma forums
I believe he just cracked 50 mph .
www.youtube.com/watch?v=YJcetlaBmbs&ab_channel=JoshuaBurukkusu

[bullybike]

thre valve head and water cool. hmm yamaha no please dont stop


probably nothing i said here applies to zumas.

whats chance a zuma cylinder snd head will fit on a gy6 case?

[FrankenMech]

The first thing to do would be to take apart EVERY electrical connection, check the crimp and re-crimp as required, and saturate it with dielectric grease. The scoot electrical connections are piss-poor.

[bullybike]

ReCRIMP! you must live far far far from tha salty sea.

what he means is totally rip apart your wiring harness think about replacement of all wires with REAL copper wire and SOLDER over any visible strands and crimps. then put silicone on them, then wrap in scotch 33+.

otherwise that garabe gana rot out after one summer i told jerry not to ride on the beach