28mm oko carb tuning
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28mm oko carb tuning
Okay guys hopefully you guys can help me on this one. I have a 72 corsa, mini stroked. Yes I have the right amount of head gaskets. 28mm oko carb, 7.4-1 gears, 1500 contra, 3000 clutch spring. My bike runs super good but from close to full throttle. But my only problem is my temp. cruising temp 1/4 to 1/2 I'm getting up to 350 about 50 mph. I full throttle it for a bit and temps don't really rise to bad, highest temp I got was 378 and was getting worried I am running to hot. I know I am running a 55 slow jet. Do you think I should up the jet to a 58 or just fiddle with the air fuel mixture screw. My main if I'm not mistaken is a 138 and it doesn't bog or hesitate at ll so i don't think thats a problem its just my temps got me worried at 1/4 to 1/2. or I should up my jets all around? thanks any help will be very much appreciated from you moped gurus...
2006 SYM DD50
72 Corsa
Mini Stroked
26mm Polini carb
Stage 6 intake manifold
Sparrow Exhaust
Polini Ruckus Variator
Malossi Fly Clutch w/ blue
1500 contra
Lightened mag
7.4-1 gears
72 Corsa
Mini Stroked
26mm Polini carb
Stage 6 intake manifold
Sparrow Exhaust
Polini Ruckus Variator
Malossi Fly Clutch w/ blue
1500 contra
Lightened mag
7.4-1 gears
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- Spree
- Posts: 201
- Joined: Thu Oct 13, 2011 6:05 pm
- Location: Ka-Y
Re: 28mm oko carb tuning
adjust needle clip
Re: 28mm oko carb tuning
kauaianman wrote:adjust needle clip
I put a 58 slow jet in tuned the carb and throttle response is still super good. and full throttle is good. Was wondering if I should make it a little rich by putting a bigger main jet in.. right now I have a 135 in it maybe a 138 just to run on the richer side a little? what do you think?
2006 SYM DD50
72 Corsa
Mini Stroked
26mm Polini carb
Stage 6 intake manifold
Sparrow Exhaust
Polini Ruckus Variator
Malossi Fly Clutch w/ blue
1500 contra
Lightened mag
7.4-1 gears
72 Corsa
Mini Stroked
26mm Polini carb
Stage 6 intake manifold
Sparrow Exhaust
Polini Ruckus Variator
Malossi Fly Clutch w/ blue
1500 contra
Lightened mag
7.4-1 gears
Re: 28mm oko carb tuning
I currently run 152/55 on my 28mm OKO carb. Tuning is just dialing it it in over days and many many runs.
I'd mess with the air/fuel, jets, and needle.
BUT ONE AT A TIME.
I'd mess with the air/fuel, jets, and needle.
BUT ONE AT A TIME.
Honda DIO 3 ZX Live, Malossi, WindJammah!
- Downsouthdio
- CB900F
- Posts: 1205
- Joined: Wed Dec 21, 2011 11:00 am
- Location: Key west
Re: 28mm oko carb tuning
Honestly my opinion..thats about what your temps are going to be..i have close to same setup..50mph is a littlle up in rpms..i cruise around the same speed and occasionaly see those temps..ive had my setup for 5 years..and my jetting is 125 /52..i think you are safe..your compression should be at 125psi
Honda super dio
Corsa
26mm
Sparrow
Corsa
26mm
Sparrow
- Mini_Stroker305
- Goped
- Posts: 90
- Joined: Sun Mar 01, 2015 6:05 pm
- Location: Key west, FL
Re: 28mm oko carb tuning
Try up jetting your main and messing with idle and air screw. Also try lighter weights I've noticed putting a bit lighter weights can also help with temp control, this also works vice versa. Not saying this will work in your case but just an opinion
96 Yamaha Jog Next Zone CY50
72cc Polini Evo 2
Ruima 41.4 Teflon ministroke
Yasuni C16
24mm Polini pwk
Malossi 8:1 Primary Gears
Malossi VL14 Reeds
Polini 360 Mani
Jaingwayne transmission
Michelin S1 tires 90/90/10
Hoca Racing Fan/Alternator kit
72cc Polini Evo 2
Ruima 41.4 Teflon ministroke
Yasuni C16
24mm Polini pwk
Malossi 8:1 Primary Gears
Malossi VL14 Reeds
Polini 360 Mani
Jaingwayne transmission
Michelin S1 tires 90/90/10
Hoca Racing Fan/Alternator kit