So to start with, this blaster used to be my uncles years ago. He took it all apart in his basement but he passed away years ago. All the parts have been sitting until my dad started to rebuild it but he gave up because he thought it would be too much money. Now i have it and ive almost got in running in a week but i need help, i have done so much but i cannot get it to idle, or start/run without giving it a good amount of throttle, and it still dies after a couple seconds.
Here is what i have done:
New namura stock size piston kit.
Honed the cylinder.
TORS is off and everything unplugged.
New head, cylinder, exhaust, intake gaskets.
New boyesen reeds.
New fmf exhaust (he had the expansion pipe but was missing the muffler).
Complete carb rebuild and clean, float set to 20mm, 260 jet, 32.5 jet. Set the air screw to 1.5 turns.
Compression tested to 120.
Put some ultrabond copper on the exhaust header because it was leaking.
Intake is stock besides a k&n knockoff. Lid is on.
Tested stator, ignition coil, good. New spark plug.
So i can get it to fire up, but only if i give it like half/full throttle. Itll run for a couple seconds and die. It wont rev up passed maybe 2000 rpm, and if it goes down to idle speed it dies. Ive tried jets from 230 stock to 290 all give same result.
I did remove the exhaust completely and thats the first time it started and revved up pretty good, but i didnt run it for more than a couple seconds like that because its not good for it. I figured the exhaust was clogged so i blew it out, still didnt fix. Ive tried starting it without the intake too and it ran better than with the intake on but still died quickly. So it seems like its starving for air? Also when i take the carb back off its pretty damn wet with fuel. So maybe its getting too much gas? But ive searched and googled and looked all over on here and ive tried everything besides a leak down test, i have to buy one from like harbor freight or something tomorrow. Cant think of anything else to check or replace. Ive thrown so much at it already and nothing is making it run better, so its gotta be something simple id think... any ideas?
Here is what i have done:
New namura stock size piston kit.
Honed the cylinder.
TORS is off and everything unplugged.
New head, cylinder, exhaust, intake gaskets.
New boyesen reeds.
New fmf exhaust (he had the expansion pipe but was missing the muffler).
Complete carb rebuild and clean, float set to 20mm, 260 jet, 32.5 jet. Set the air screw to 1.5 turns.
Compression tested to 120.
Put some ultrabond copper on the exhaust header because it was leaking.
Intake is stock besides a k&n knockoff. Lid is on.
Tested stator, ignition coil, good. New spark plug.
So i can get it to fire up, but only if i give it like half/full throttle. Itll run for a couple seconds and die. It wont rev up passed maybe 2000 rpm, and if it goes down to idle speed it dies. Ive tried jets from 230 stock to 290 all give same result.
I did remove the exhaust completely and thats the first time it started and revved up pretty good, but i didnt run it for more than a couple seconds like that because its not good for it. I figured the exhaust was clogged so i blew it out, still didnt fix. Ive tried starting it without the intake too and it ran better than with the intake on but still died quickly. So it seems like its starving for air? Also when i take the carb back off its pretty damn wet with fuel. So maybe its getting too much gas? But ive searched and googled and looked all over on here and ive tried everything besides a leak down test, i have to buy one from like harbor freight or something tomorrow. Cant think of anything else to check or replace. Ive thrown so much at it already and nothing is making it run better, so its gotta be something simple id think... any ideas?
