99 600 summit main jets

[rstephen0424]

what are the stock main jets. do i need to jet up and what to. its bone bone stock everything is clean i think it had 310's but i'm not sure. its running lean at wot no matter the elevation (dpm is working) thanx

 

[BU1]

280 stock

 

[rstephen0424]

are they known for needing to be jetted up though or should it run fine with 280

 

[rstephen0424]

took torch tip cleaner to the jets last night and raised the needles up one, alot better but id rather error on rich than lean

 

[BU1]

took torch tip cleaner to the jets last night