72cc contesa,per mix klotz 32 to 1.21mm carb 95 jet,uni filter foam.v8 pipe.
I was riding one morning shut it off and tried to start it a hour later and it had lost compression.The rings were stuck in the piston .They seemed carboned up.Replaced piston and rings and rode it gently for about 2 tanks of fuel.
Went on a 5 mile ride shut it down to eat and the same thing happened.When I took it apart I found the same thing.Top of piston solid black from carbon and rings stuck again.
I could sure use some advice.
2001 elite contesa carbon problems.
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- spree picker
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2001 elite contesa carbon problems.
I give old Sprees a new life
Re: 2001 elite contesa carbon problems.
Sounds like cheap oil.
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Re: 2001 elite contesa carbon problems.
The more oil= bigger jets. Less oil in ratio=smaller jets. Did you do a plug chop to make sure you have the right jets? You could be running super rich. Try switching to a cleaner oil
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- spree picker
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Re: 2001 elite contesa carbon problems.
21mm carb with a 95 jet,and yes the plug looked dirty.
I give old Sprees a new life
Re: 2001 elite contesa carbon problems.
Are you using Klotz with castor oil? I was running super tecniplate at 32:1 and it made my rings stick too and light seized my bore. Needless to say I am not using castor oil anymore
Racing oil is for racing since racing engines are not build for longevity go with a full syntehtic oil and you should be good. Just because the brand of oil is supposedly better doesnt mean it is correct for street applications.
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
- spree picker
- BMX

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Re: 2001 elite contesa carbon problems.
I had to learn the hard way
I run Lucas performance in everything I have now and never had any problems. When I was running the super techniplate it seized and when I took the bore apart it looked like an old deep fryer with all the gummy oil stuck all over the piston. Like I said whichever brand you use try the full synthetic or even semi-synthetic without castor
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
- spree picker
- BMX

- Posts: 40
- Joined: Tue Sep 27, 2011 9:34 am
- Location: missouri
Re: 2001 elite contesa carbon problems.
Same thing. 100 miles and its gummed up.
I give old Sprees a new life
Re: 2001 elite contesa carbon problems.
just port and polish on the exhaust.. 