TT .46 Pro --- my favorite 46 size engine (got 5 of the little rascals) [sm=thumbup.gif].

Mine usually run 2 - 2 1/4 turns open on the HSN. LSN setting is variable, but usually 1 - 1 1/2 turns open from bottom, with the throttle closed.


In your case, we need more info --- you can do a few tests to help us.

First -- get your linkage sorted out. Next, peak the engine at full throttle with the HSN & back off a couple of clicks (should be somewhere near 2 turns open). Close the throttle & let it run at idle (ensure correct throttle trim setting).

Does it idle at all?

If it will idle, does it slowly begin to stumble & then die, or does it just die away at idle without stumbling?

If you advance the throttle smoothly from a prolonged period at idle, does it quit sharply, or does it sputter a bit and quit?

If it idles without stumbling & slowly dieing, & then quits sharply upon opening the throttle, the LSN setting is too lean. Open it (anti-clockwise) in 1/8 turn increments until the engine will accelerate smoothly from a long idle. Reset the HSN & do the whole test procedure again.

If it won't idle at all, the LSN is probably much too lean -- open it (anti-clockwise) in 1/4 turn increments until it will run at idle. Reset the HSN & go to idle. If it then stumbles at idle, follow the procedure above. If it idles OK, but dies away as you open the throttle smoothly, it is still too lean. Open the LSN (anti-clockwise) in 1/8 turn increments until it smoothly transitions to full throttle. Reset the HSN & do the idle test again.

If it idles & slowly stumbles & quits, the LSN is too rich. Close the LSN in 1/8 turn increments until it will accelerate smoothly from idle. Re-set the HSN & repeat the idle test.

Remember that both HSN & LSN settings are interactive changeing one will affect the other to some extent.