noobie question

turbotim

New Member
Dec 26, 2009
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okay i cleaned my carb, it sucked when i got the carb cleaner in my eye, but im okay now!I:I Remember safety glasses guys! So i think the main jet had 230 stamped on it. Is that stock? And are you guys sure you turn the air screw clock wise to richen, it seems like a fuel jet! Now if i want to bump my main jet one size richer, would i go to a 300 or is the next size 330?
 
thanks man, im pretty sure its totally stock, so i think im gonna try a 240 cause its cold and its winter out here in the midwest! The blaster runs great. When i got it, the guy i got it from said it needed a top end rebuild and it ran and sounded like it did, so all i did was block off, mix32--1, replace air filter, and adjust air screw and idle and it screams, doesnt seem or sound like it needs any kind of a rebuild, i love it, but when i go for a balls to the walls run, it wants to do a wheelie when i hit 2nd, and just seems a little lean on top, and i looked at the plug and it does still look a little white way deep down in there! so u guys are sure u turn the airscrew on the air filter side of the carb to the right to richen right?
 
is it normal for my blaster to want to do a wheelie when i do a balls out run is that normal?
 
is it normal for my blaster to want to do a wheelie when i do a balls out run is that normal? i weigh 152 pounds
 
blasters are great for wheelies. they make wheelies easy...so its probly normal. mine always did when i rode mine. you can always add a longer swingarm if you dont like wheelies.

as for adding rep. click on the yellow circle under the members name, it will say i approve or disapprove. click one. then decide how many points of rep they deserve with the dropdown menu. then click add reputation.....
 
.......so u guys are sure u turn the airscrew on the air filter side of the carb to the right to richen right?

I know it sounds counterintuitive, but yes, you turn the air screw IN (clockwise, to the right...) to RICHEN the mixture. Unilke the finely-pointed mixture screws used to regulate fuel mixture on other float and pumper carbs., the airscrew on your carb has a blunt tip. It works by blocking off some of the air flow to the carb's idle circuit. Sort of like a choke. The farther in you turn the air screw, the less air will be permitted to enter the idle circuit, and the richer the engine will run.

It's a different principle than opening up the typical needle valves for more fuel. However, airscrews have been in successful use for decades, so I guess they work. :D I understand the confusion. Haha. I'm a small engine tech who is used to UNSCREWING needle valves on the pumper carbs of weedeaters and blowers for more fuel, as needed. I have to stop myself and 'switch gears' before poking an ATV Mikuni carb. with a screwdriver...
 
The flat tip screw on the side of the carb is the a/f mixture screw. It controls the low end circuit. As for your leaning on the top end, if your at a 240 now. you may even want to bump it up another one. DONT TAKE MY WORD FOR IT THOUGH!!!
 
dude, this is sick i love wheelies i dont think im ever gonna sell this thing time to spiff it up!I:I
 
thanks for all your help guys your great! And happy new year! and Im still at a 230 bro, but i will try a240 on sat when shop opens till then ill just shift sooner to keep the rpms down. Okay when you guys answer me i see your name to the left with a little yellow square symbol and a little red square symbol in the corner well clicking on any of those does nothing, so i think the only thing i can do is click your name and look at your file, is that where i give you a rep after i click your name?