I have a 03 blaster and I'm just trying to get it to idle correctly but it just wont. This is what I've discovered since getting it apart and just looking at it.. It's got B1 Toomey exhaust and its got upgraded reeds by bosine(spellchecklol) I traded this quad so I didn't do any work on it prior.. It's supposedly has a 250 big bore kit bit it has a stock jug and stock carb.. Now back to the problem it had a cracked oil tank so it looked like the person before me tried to delete the oil injection but didn't do it properly so I reconnected it and primed it and used my old tank off my 00' and before I did this it was back firing pretty bad.. Now that its getting oil injected again and running straight 87 the backfire is gone but the first problem remained which was the idle issue.. I seen the carb cap was held together with zip ties and come to find out it was stripped so I took the carb apart and found out it was stock with 230 main jet and everything so I just took the parts from his carb and rebuilt one i had from my 00' laying around.. Needless to say i got it running and not backfiring but the idle problem remains.. I got it warm and messed with the screw under the seat and the air screw in the carb but it just wont hold an idle so that's brought me to the jets and carb needing to be rebuild because it is running aftermarket exhaust and reeds and sh*t.. Where should i start in size and what not?? Thanks for your time guys! Oh it does have a k and n aftermarket air filter and the air box is stock with the stock cover still on could this be a problem not enough air? I've heard of guys removing the cover or drilling holes in it.. Help me out guys I wanna ride this quad!!!
