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premix setting

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

Posted: Wed Feb 03, 2010 4:00 pm
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ok... what if i lower down abit?? say 15ml per 1 litre of petrol...??

#17: Re: premix setting Author: dopplegangus,

Posted: Wed Feb 03, 2010 11:04 pm
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dupont.07 wrote:

ok... what if i lower down abit?? say 15ml per 1 litre of petrol...??

It's your bike, even if you dun want to use 2t, also can. You can do anything with your bike. Laughing

#18: Re: premix setting Author: sops, Location: Singapore

Posted: Thu Feb 04, 2010 12:06 am
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Haha.. just play around la.. dude, if still got problem, go for jetting. Make it more lean. I think you can try minimum until got small bit of white smoke come out from exhaust. If no white smoke, maybe not enough 2T.. correct me if I'm wrong..

#19: Re: premix setting Author: dopplegangus,

Posted: Thu Feb 04, 2010 2:07 am
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sops wrote:

Haha.. just play around la.. dude, if still got problem, go for jetting. Make it more lean. I think you can try minimum until got small bit of white smoke come out from exhaust. If no white smoke, maybe not enough 2T.. correct me if I'm wrong..

It is important to have the correct ratio of petrol and 2t. Facts that all rider need to know. Incorrect ratio, whether it is too rich or too lean, can cause a piston jam. 2t is needed to lubricate the piston where else is petrol also act as a cooling agent for the piston. One of the reason why petrol is cold. I dunno about other ratio but too me 50:1 is my safest bet. Very Happy

So if you want to try to reduce the amount of 2t based by visually see the amount of white smoke produced, it is your own call. Whatever make you sleep better at night, boys. Laughing

#20: Re: premix setting Author: sops, Location: Singapore

Posted: Thu Feb 04, 2010 7:52 am
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Yep. Too little or too much also no good. I usually use 20-30 ml per litre, trying my best to follow the factory recommendation of 50:1. One of my friends who used to do mx on ktm said that the lowest he went was 15ml per litre for trail riding. For track, he used 25-30ml.

With all these headache, thumpers are a better choice for beginners. However, I do like the power and sound of a 2 strokers, but you really got to read up on your stuff. I'm still learning man..

#21: Re: premix setting Author: dopplegangus,

Posted: Fri Feb 05, 2010 9:08 am
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sops wrote:

Yep. Too little or too much also no good. I usually use 20-30 ml per litre, trying my best to follow the factory recommendation of 50:1. One of my friends who used to do mx on ktm said that the lowest he went was 15ml per litre for trail riding. For track, he used 25-30ml.

With all these headache, thumpers are a better choice for beginners. However, I do like the power and sound of a 2 strokers, but you really got to read up on your stuff. I'm still learning man..

I believe, for mx, they prefer to make their bike a bit lean as it gives better power. The spark from sparkplug will be produced more as less 2t will be present. But the downside, you have to do piston maintenance regularly compared to normal riding...

#22: Re: premix setting Author: aremean_troy™®©, Location: Singapore

Posted: Fri Feb 05, 2010 11:53 am
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Im using 25ml per 1L of petrol on my YZ125. Works well for me!

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

Posted: Fri Feb 05, 2010 4:29 pm
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aremean_troy™®© wrote:

Im using 25ml per 1L of petrol on my YZ125. Works well for me!

so i guess my bike has carburetor problems lah... even though i tend to whack upto 4th gear, still need to change plugs halfway....

anybody has carburetors to let go...????

#24: Re: premix setting Author: dopplegangus,

Posted: Fri Feb 05, 2010 5:03 pm
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dupont.07 wrote:

aremean_troy™®© wrote:

Im using 25ml per 1L of petrol on my YZ125. Works well for me!

so i guess my bike has carburetor problems lah... even though i tend to whack upto 4th gear, still need to change plugs halfway....

anybody has carburetors to let go...????

My advise, dun get 2nd hand carb. Cos most of them who sell their carb becos it got problem. Most people dun change their carb if it works just fine. Get a new one if possible. Then you dun have to think about any carb problem for at least 3 years... Wink

#25: Re: premix setting Author: aremean_troy™®©, Location: Singapore

Posted: Fri Feb 05, 2010 11:29 pm
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dupont.07 wrote:

aremean_troy™®© wrote:

Im using 25ml per 1L of petrol on my YZ125. Works well for me!

so i guess my bike has carburetor problems lah... even though i tend to whack upto 4th gear, still need to change plugs halfway....

anybody has carburetors to let go...????

I beg to differ... its not the carb but the settings and jettings that needs to be changed.

#26: Re: premix setting Author: dopplegangus,

Posted: Sat Feb 06, 2010 12:27 am
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aremean_troy™®© wrote:

dupont.07 wrote:

aremean_troy™®© wrote:

Im using 25ml per 1L of petrol on my YZ125. Works well for me!

so i guess my bike has carburetor problems lah... even though i tend to whack upto 4th gear, still need to change plugs halfway....

anybody has carburetors to let go...????

I beg to differ... its not the carb but the settings and jettings that needs to be changed.

Hahahhaa, I beg to differ again. My instinct tells me the it is the carb is having a problem. I am confident that the bike will still have the wet sparkplug problem after changing it's setting. Cos I am sure, the previous owner, couldn't have been using a wrong setting all along, especially a too-rich setting. Well, I could be wrong but I am pretty sure of it becos I have been into similar situation before.

Rae, if you want, you can change the setting first. And like I told you, a quick solution is to use an iridium or any thin tip sparkplug (if not mistaken, holeshot is selling at $9/-) but you're not totally solving the problem. Good luck. Smile

#27: Re: premix setting Author: privateer41, Location: singapore

Posted: Mon Feb 08, 2010 5:16 am
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Keep the 2t to 25ml and get Aremean to do the jetting on the Main jet and pilot jet, and the reason that you always fouled the plug is when you just pour the 2t straight up into the tank full of petrol, thus the 2t tends to sit at the bottom. You're supposed to mix the 2t and petrol in a separate container and give it a good mix before before pouring into the main bike tank!...Did you just pass your 2b recently??..Besi bin sawit!

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

Posted: Wed Feb 10, 2010 5:02 pm
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yeah... i p-plate... now then u know huh....

i pump petrol.. then put 2t.. then i shake2 the bike... still cannot uh..?

#29: Re: premix setting Author: MyXup, Location: NORTHWEST RIDER

Posted: Thu Feb 11, 2010 7:33 am
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dupont.07 wrote:

yeah... i p-plate... now then u know huh....

i pump petrol.. then put 2t.. then i shake2 the bike... still cannot uh..?

Best check your Plug regularly...see pic below.
I bet there's lots of 2T present in yr tank by now if u use 20or25ml/Litre.

Chk for normal condition...

Adjust yr 2T amount till u get the desired condition.

No need to change carbs or jetting....la Mr. Green

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

Posted: Thu Feb 11, 2010 7:42 am
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mine is normally both of the second pics....

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