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my yz 250 2016 

jetting is 

48

175 

second clip

air screw 1.5 turns out 

is this a good getting jetting for wide open fast trails  alot of wot riding and some small tight spots in summer time 85 degrees close to sea level riding ? its in woodbine new jersey 

should i do 2 turns out on the air screw or keep it 1.5 and every things stock on bike with twin air filter  talk to me what do you guys think?

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If any sustained wide-open throttle riding is anticipated,

no matter what others recommend you should do a plug chop in YOUR specific conditions.

link: http://www.braigasen.com/howtoread.htm

 

Pilot jet and needle settings are adjusted by 'feel', (throttle response, acceleration),

the main jet by reading plug coloration and also ideally reading the piston crown's carbon wash pattern.

The air screw simply fine tunes the pilot jet circuit, going too far in either direction means you need a smaller/larger pilot jet.

Edited by mlatour
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Search for spanky's jetting guide, it has all the answers to your questions 

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