what do i need to change now

Oh, the question was already answered, i though this was all over honestly. Just ride it and see how it runs, and the jet it correctly. Why does it matter what size the stock jets are?

because with the mods he is putting on the stock jets are to lean which would cause a blown topend.
 
Of course, it would instantly blow up in about 5 minutes. No. It would be fine for riding it around for like 5 mins and then figuring out that it is running too lean.
 
Of course, it would instantly blow up in about 5 minutes. No. It would be fine for riding it around for like 5 mins and then figuring out that it is running too lean.

i get what your saying. but the point we are trying to make is that if you jet it before you see how it runs then you could eliminate the risk of running it lean and blowing the top end.
 
Of course, it would instantly blow up in about 5 minutes. No. It would be fine for riding it around for like 5 mins and then figuring out that it is running too lean.

Someone tell this guy to STFU. I've always jetted my stuff rich first then worked down to where I needed to be. As far as I knew, that was common practice. But I guess every other member on Blaster Forum is wrong.
 
Oh, the question was already answered, i though this was all over honestly. Just ride it and see how it runs, and the jet it correctly. Why does it matter what size the stock jets are?

well how can u tell anyone what jets to run if u dont know the jets in a blaster carb.........and saying ride it and see how it runs is crazy........ur telling me that a new blasty owner comes here...then buys a 240 kit with the stock carb on it with the stock "230" main<<< write that down)).....asks for help on jetting and u tell him ride it and see how it runs......then 20 minutes into his ride the piston melts.......yea i think knowing the stock jet sizes matters quite abit here on blasterforum
 
How can you know if it is rich or lean untill it has been run? It is common practice to jet how your engine is running. Im not going to tell someone to STFU on a forum, thats just rude.

anytime you chang something dealing with the motor such as intake, performance stuff like that you need to jet it richer. its different from a 4 stroke where jetting isnt exactly a top priority. we are just trying to help the guy avoid the risk of running it lean altogether that way there isnt a chance for a meltdown to occur
 
LOL, it wouldnt take 20 minutes to find out it was running lean. More like 5, if that. Stop making this arguement, it isnt going anywhere and isnt accomplishing anything

im sorry but u saying ride it and see how it runs when u dont know about blaster carbs is just hypocritical.....im done
 
How can you know if it is rich or lean untill it has been run? It is common practice to jet how your engine is running. Im not going to tell someone to STFU on a forum, thats just rude.

Obviously, you would not know for sure, BUT, you could just jet where you think it would be rich, and work down to the correct jet from there, so you are sure you do not blow your engine up. Obviously you are not going to start with a 380 jet and work down to 290, but you could at least ball park it. Let me ask you, gscx1, would you rather damage your engine by running it lean and finding out what you already know, or would you rather take 10 minutes, change a jet, and KNOW you are safe from engine damage? IDK what the majority would rule, but I think I'd rather take 10 minutes and be sure I didn't causeany engine damage, no matter how minor it could be.
 
How long is it going to take to realize it is running lean? Let me ask you that

More than long enough to cause at least minor engine damage. You ride a 2 stroke lean, you take the chance of damage. Let me ask you, do you even know what the symptoms of a lean running engine are?
 
Remember what I told you earlier gscx1, listen to people.

When you modify the exhaust or intake in a way that lets the engine "breath" easier (opens up or less restriction) that the jetting will be lean. So in turn you already know without riding it, it will be lean. Less restriction means more air flow and you most then give it more fuel, to get the air/ fuel ratio correct.
 
i dont know what the stock jets are i pulled them out and their are no numbers on them where is the air screw in the carb and how do you change the nedle pistion