mi-bowhunter
Member
- Mar 30, 2006
- 14
- 0
mi-bowhunter said:I recently aquired 99 yz125, I am a new rider so im not balls to the walls as of yet, the problem im having is I keep fouling plugs after 30 min of riding, when I pull them the are black and smell real rich, I spoke to the previous owner and he said the carb is all factory settings, he suggested to go to a hotter plug.
My knowledge is very little so far so I ask you guys and gals what plug should I run to help extend the life of em ??
Is there any adverse affects to running a hotter plug ??
Should I switch back to the factory reccomended plug when I become a better ridder?
Any and all help is greatly appreciated.
Thanks :ride:
Wytboi said:I run stock jetting and a richer 40:1 mix. :laugh:
NacNac250F said:40:1 is a leaner mix, or less oil in the gas.
40:1 = 3.2oz oil to a gallon of gas
32:1 = 4oz oil to a gallon of gas
Less oil=more gasNacNac250F said:explain please, i wanna hear how less oil is richer!
FruDaddy said:Less oil=more gas
More gas=richer mixture
Need more detail?
That's cool and I don't blame you. It's usually better to err on the side of lubrication as long as the carb is jetted accordingly.NacNac250F said:OK fair enough. But in a 125 I like to run more oil in the gas to be safe because you have to scream them more.
True to an extent, but if the oil isn't completely burning (too much oil), it will coat the plug and cause problems. Every oil manufacturer seems to have their own mixture recommendation, and you should stay close to that, but a little extra shouldn't hurt.Wytboi said:Too much fuel is what fouls your plug, not oil.
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