Bumblebee Build-Up

[burnt_toast]

This build was started with the goals of ending up with a comfortable 45-50mph cruiser, with a 60+mph top speed. So far goals have been met, returning an economical 50mpg avg to boot

Previous 50cc build, and how she started out:
viewtopic.php?f=1&t=9487

Base:
'98 Honda Elite SA50P (restricted version, 25mph max)

Performance Mods:

Motor/Exhaust
OLD: 48mm Ruima Big Bore (75cc on stock crank)
OLD: 48mm Ruima matching head
NEW: 72cc Polini Corsa
JDM DIO head bolts
NGK B8HS
Full synthetic blend 2stroke oil (stock injection)
Caster927, 2caps premix per fillup
Stock Oil pump, wired full open
Gutted A/C shroud
YMS DIO exhaust

Intake
DIO throttle cable
OLD: 24mm OKO carb
NEW: 21mm OKO
UNI open filter
CT chrome manifold
Goodyear fuel line

Drive
Bando OEM belt
OLD: OKO Variator
NEW: KELI Variator
OKO Ramp plate
Ruima Rollers
2k DIO center spring
2k DIO grab springs
9:1 Ruima upgears
Ruima/Prodigy Carbon pad clutch
Shinko Rubbers 3.0-10 F/R
EBC Brake pads F/R

Misc
Superbike Bar Grips
Westach CHT Gauge

Appearance Mods:
oem stickers debadged
Gloss black Rims
ebay shorty mirrors
BGM carbon look kicker
JDM smoked turns
matte black carb bowl
Custom sticker set
Black accents

[Fishman43]

Very nice looking, and great details of what you have put into the scoot! Now we just need those CF reeds

[evilone]

How limited is "very limited"?

[Bear45-70]

d***, that's YELLOW

[Trafficjamz]

d***, that's YELLOW

Cause that scooter is bananas!


And this is the whole bunch of bananas

[Wheelman-111]

Greetings:

Wild lookin' DragPed, BeeTz! Still needs to lose a bunch of stickers, vertical black stripes and a "stinger" tailpipe...

[Bear45-70]

d***, that's YELLOW

Cause that scooter is bananas!


And this is the whole bunch of bananas

Don't you mean the owner is BANANAS?

[mccanic-racing]

Love the shocker sticker man!!!!!
Shocker for LIFE

[sum-azn-kid]

nice build looks sleeper if you didn;t have the stickers, btw whats the top speed? and how does it run with the oild pump instead of premix, does it run hot?

[trains420]

how many mpg do you get with that, 24mm carb and 48mm big bore kit? what yms dio pipe, the blue one? or the hurricane pipe.

[mustangwagz]

Love the shocker sticker man!!!!!
Shocker for LIFE

Hhahaha, NO s***! never even seen that itll this dood mentioned it. FREAKIN A man, ROCK ON!!

[mr pibbs]

Shinko Rubbers...

Golly, what kind of a scooter is this?!

[burnt_toast]

currently working on installing V8 style jdm exhaust, prodigy clutch, and new variator tune

what spring and roller combos have worked for yall? those running 48-51mm BBKs, having a hard time finding the sweet spot. input is appreciated

[Wheelman-111]

Greetings:

You'll be tuning to your pipe, of course. If it helps any, I'm using a Yellow center spring that'd be familiar to you. Opposing it are about 35-38 grams total roller weight. I was using less (maybe 32g?) with the PG Long pipe, but the Hot Surfaces pipe from Taz likes to make torque at low-ish revs. On the way to work this morning, I was amazed to see 6500 RPM at 38 MPH and a scant 7K at a steady 42 MPH. Throttle barely cracked open. Jumping up or down by more than 3 grams can overshoot the ideal.

[burnt_toast]

That sounds pretty good, I'm closer to around 46g with a 2k rear and it just seems too revvy at first, then throttle dips down noticeably past 35mph. Going to try a slightly stiffer rear center and see if thats closer to balance, otherwise lower vari weight and 1.5k center may be the ticket, thx