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#1: premix setting Author: khairi01, Location: jurong

Posted: Tue Feb 02, 2010 10:42 am
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hi i just change my bike to a premix setting. can you tell me whats the correct amount of 2t and petrol to use for premix. thanks. =)

#2: Re: premix setting Author: bebear88, Location: Singapore

Posted: Tue Feb 02, 2010 1:32 pm
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20ml per 1 litre...

#3: Re: premix setting Author: kayak_pc, Location: Singapore

Posted: Tue Feb 02, 2010 2:44 pm
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factory settings is 20 ml to 1 litre of petrol. then slowly reduce the amt of 2t. first u need to monitor ur condition of ur spark plug. if go trail dun really whack hard, u might wan to drop to 10ml. most people use abt 15 - 20

#4: Re: premix setting Author: Crasher, Location: upp bukit timah, West, Singapore

Posted: Tue Feb 02, 2010 2:52 pm
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it depends on your bike
back on my old 2 strokes i used a 45-50:1 ratio.

#5: Re: premix setting Author: dupont.07, Location: west

Posted: Tue Feb 02, 2010 4:35 pm
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ok.. what if i use 20ml per 1 litre... but everytime i need to change my plugs.... and the plugs are damn wet... but im scared to change the amt of premix.. scared later piston jam.... how....?

#6: Re: premix setting Author: kayak_pc, Location: Singapore

Posted: Wed Feb 03, 2010 2:09 am
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Either u change ur jetting configuration or you whack hard so that the 2t can burn..

#7: Re: premix setting Author: Dzefro, Location: Singapore

Posted: Wed Feb 03, 2010 2:19 am
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kayak_pc wrote:

Either u change ur jetting configuration or you whack hard so that the 2t can burn..

whack hard!

#8: Re: premix setting Author: Crasher, Location: upp bukit timah, West, Singapore

Posted: Wed Feb 03, 2010 7:45 am
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your plugs are black from too much 2t oil

take it back to about 50:1 (60:1 max!), 20:1 is far too high

#9: Re: premix setting Author: dupont.07, Location: west

Posted: Wed Feb 03, 2010 9:15 am
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if 20 ml to 1 litre is high.....

the 50 : 1 .....????

#10: Re: premix setting Author: dopplegangus,

Posted: Wed Feb 03, 2010 9:47 am
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dupont.07 wrote:

if 20 ml to 1 litre is high.....

the 50 : 1 .....????

50:1 is ratio... which meant 1000ml or 1 litre (petrol) : 20ml (2t)

Last edited by dopplegangus on Wed Feb 03, 2010 10:02 am; edited 2 times in total

#11: Re: premix setting Author: dopplegangus,

Posted: Wed Feb 03, 2010 9:50 am
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Crasher wrote:

your plugs are black from too much 2t oil

take it back to about 50:1 (60:1 max!), 20:1 is far too high

Bro, who mentioned using 20 : 1 ratio? Nobody.....

#12: Re: premix setting Author: khairi01, Location: jurong

Posted: Wed Feb 03, 2010 10:27 am
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so 20 ml of 2t is to 1L of petrol is the best? thanks for the advice. =)

#13: Re: premix setting Author: Crasher, Location: upp bukit timah, West, Singapore

Posted: Wed Feb 03, 2010 10:53 am
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dopplegangus wrote:

Crasher wrote:

your plugs are black from too much 2t oil

take it back to about 50:1 (60:1 max!), 20:1 is far too high

Bro, who mentioned using 20 : 1 ratio? Nobody.....

right sorry, i was skim reading, misread.
still if your plugs are black lower the ratio

#14: Re: premix setting Author: KTM superfly, Location: West Side

Posted: Wed Feb 03, 2010 11:37 am
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1000 divide by 20 is 50. so for 20:1 ratio its like 50ml per litre.

1000 divide by 50 is 20. so for 50:1 ratio its like 20ml per litre.

i think the 50:1 ratio is for race fuels...

#15: Re: premix setting Author: dopplegangus,

Posted: Wed Feb 03, 2010 1:38 pm
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KTM superfly wrote:

1000 divide by 20 is 50. so for 20:1 ratio its like 50ml per litre.

1000 divide by 50 is 20. so for 50:1 ratio its like 20ml per litre.

i think the 50:1 ratio is for race fuels...

Nobody uses 50:1. Not even for racing.... I believe 20:1 is the best. I used it and I have never whacked my bike. Ride maximum 70km/h, even on expressway. The thing is, a healthy engine ktm with correct jetting should not face any wet sparkplug at 20:1 ratio.

-> SuperMotard

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