motor bogs with 300 main

[Antec1200X]

well the title says it.i bought 3 mains and first tryed the 300 and the bike bogs.so i threw in the 290 and it bogs a lil untill i screwed out the air screw 2 turns.the needle is set to the middle postion.any ideas to get the bigger jets in?i have 290/300/310
cost me 20 bucks for 3
guess i should mention i have the air box lid on but the snorkel off.just trying to keep the dust out

 

[Surfrjag]

try a 280?????????

 

[Antec1200X]

dont have a 280
just the 260 i started off with,with the 260 the bike ripped but everyone kept saying it was too small

 

[Surfrjag]

well somewher between 260-290 it would be then. gotta do some plug chops with a 280 i think thats what it wants...

 

[Antec1200X]

does it matter about the air screw being out 2 turns?
like i said i had it out 2 turns with the 290 and it bogs a lil plus it dont smoke like a chimney
maybe with the lid completly off it might run better.at 6 bucks a pop for one jet im kinda hesitant on buying more jets

 

[Surfrjag]

o u got the lid on? yes take it off then that 290 should be perfect.. still gotta plug chop though to verify.

 

[Antec1200X]

so should i set the air screw@ 1.5 turns out with the lid off?

 

[Surfrjag]

all you can do is try it... keep a small flathead screwdriver with you and adjust the air screw as needed.

 

[1995blaster]

set it at 1.5 and fiddle with it a lil that will help the bogg down low

 

[Antec1200X]

well with the lid off and air screw set at 1.5 it doesnt seem to smoke like a chimney anymore.just need to get it out on a strech and try it out

 

[1995blaster]

then id do a plug chop to confirm everything is a ok

 

[Antec1200X]

yup will try that asap thanks

 

[Antec1200X]

oh jeebus just took the blaster out for its first after break in test run(ripp it) and at first it was a lil choppy but when the powerband kicked in i almost fell off the quad lol.i can say i wasnt expecting that power.
but back to the jets,the bike runs great but like i said its a lil choppy about 2/3 of the throttle,i couldnt do a plug run because there was too many friggin bumps on the road i was on.but i took the plug out after i got home and it looked redish maybe too lean.ill try monkeying with the needle tomorrow.

 

[Larry's Shee]

What pilot you running?

 

[Antec1200X]

stock
should i be running a bigger one?
heres a pic of the plug

 

[98blaster+4]

your plug will NOT tell you anything if you have been riding through all the rpm circuits
only plug chop will give you a definate
i would try going up a size and seeing if you still have the same power.
if you put the biggest jet you have now(310) do the same test, if it still rips in the higher rpms you can go higher.

 

[Awk08]

i have this very same setup on my sons bike, and woulda luv'd to help a few days ago, and possibly even saved you a few bucks on jets, but i was too busy in the closet, maybe your new hero lrd99 has your answers

 

[Antec1200X]

@98blaster+4
i only tryed the 300 and it bogged out.so i could have the needle in the wrong slot ill have to expierment a lil more
getting a 34mm carb.problems solved