af16 issue
Moderator: Moderator
af16 issue
Ok here is the scoop been having trouble with this since I tried installing a stock pipe on a contesta bore so I swapped back to the 43mm bore to keep from damaging my good kit. I seems like the motor is getting too much air since i have to use a 48 or higher pilot and turn the air screw almost all the way in, it will idle fine with the screw all the way in on a 21mm oko. The other day i was riding and it soft seized on me so I dismantled it completely to find that the bottom ring had stuck and the piston was all gummed up from the klotz super techniplate i was running. I swapped the kit after i cleaned up the piston and bore onto my other af16 that i completely rebuilt with new seals just to eliminate leaking seals as my problem but still the same. I have checked everything and my only conclusion is that A. my head is leaking around the sparkplug or B. my 21mm oko is somehow gone bad. Havent done a leak down test. Is there any way a carb can suck in too much air even though everything is set right? Any suggestions beyond the basic stuff?
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
Re: af16 issue
just got my stock back on the frame and the stock airbox hooked up and she purrs like a kitten and the idle/air mixture screws are set and respond as they should so it was definately not my bottom end. I hate to spend money on something and it not be the problem. May order a head for the 43mm bore and see if that is the issue for around 25 dollars
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
- Downsouthdio
- CB900F
- Posts: 1205
- Joined: Wed Dec 21, 2011 11:00 am
- Location: Key west
- Downsouthdio
- CB900F
- Posts: 1205
- Joined: Wed Dec 21, 2011 11:00 am
- Location: Key west
- Red Eft Performance
- Elite
- Posts: 449
- Joined: Sat Jun 11, 2011 10:40 am
- Location: maine
Re: af16 issue
Pressure test it. You might still have a air leak and adding the airbox is just helping mask it.
Red Eft Performance
To benefit forum members REP will beat the price of any legit/active Business/website
Elite, Dio, Aero, AF16/AF05 Cylinder kits,Clutches,Variators,Belts,CDI boxes,Reeds,Clutch bells,Pipes
Malossi,Polini,Fabrizi,Anything!
View products click => Here
To benefit forum members REP will beat the price of any legit/active Business/website
Elite, Dio, Aero, AF16/AF05 Cylinder kits,Clutches,Variators,Belts,CDI boxes,Reeds,Clutch bells,Pipes
Malossi,Polini,Fabrizi,Anything!
View products click => Here
Re: af16 issue
I swapped everything onto my other af16 that i completely rebuilt with new seals etc and same problem occurs so I am pretty sure its the carb that is at fault and downsouth...the stock airbox wont fit on an OKO carb Since it started with the Contesta I dont think it is my head leaing around the spark on the 43mm bore. I have a 24mm oko on the way so I will know for sure if its the carb or not within a few days.
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
- Trafficjamz
- CBR1000RR
- Posts: 5353
- Joined: Tue Jul 14, 2009 7:53 pm
- Location: Eastlake, MI
- Contact:
Re: af16 issue
wanna sell the 21mm oko?
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
Re: af16 issue
As soon as a get the 24mm I will consider it Tjamz. What you wanna pay?
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
- Trafficjamz
- CBR1000RR
- Posts: 5353
- Joined: Tue Jul 14, 2009 7:53 pm
- Location: Eastlake, MI
- Contact:
Re: af16 issue
Mystic wrote: As soon as a get the 24mm I will consider it Tjamz. What you wanna pay?
I want to pay as little as possible. I heard it might be broken
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
Re: af16 issue
I hear ya man, I wont know for sure if its defective till I get another carb to test. The result will determine whether I sell it and for how much
1986 Spree/ Eve af16 swapped 65cc Prodigy vari 8g 9:1 Ruima gears
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
21mm OKO 42/100 32:1 45mph kymco zx exhaust
1994 Elite S 17.5mm Arreche, Daytona reeds, SEF ramp, pump plugged
1987 Elite SE50 af16 swapped
1989 Elite E SB50p
2003 Yamaha Zuma
- Downsouthdio
- CB900F
- Posts: 1205
- Joined: Wed Dec 21, 2011 11:00 am
- Location: Key west