RC-Monster Forums - View Single Post - What have you guys done to stabalize the XL

Finnster · 04.22.2009, 11:01 AM

Tuning isn't too bad to get a mostly reliable engine once you do it a couple times. As said, reset everything to the factory settings. It is set to run really rich from fact for break-in. (have you broken it in all the way?)

I know on mine I leaned out the HSN at least one full turn from factory, and maybe .5 turn on the LSN. Leave the LSN for last. If its not starting, you are quite safe to lean it out on HSN at least .5 turn to help it out. Idle spd may need to go up to if it doesn't want to start, or dies on idle. You are fine to turn up the idle so far that it will just begin to drive forward after a few seconds still idling.

If you can't get to 200, you are way rich. Keep leaning out until you get 220-240. Watch out for the half tank lean on the savage. Best to keep the tank topped up until you get it sorted out to avoid this and add complication.

Once you get the idle and HSN reliable and tuned, then mess w/ the LSN. Easiest test is the pinch test. Pinch the fuel line close to the carb. If it runs for a little while, revs up and then finally dies, you are too rich. Lean out a tiny bit (1/8 to .25 turn if way rich) and try again. If it just dies as soon as you pinch the line, feels weak and doesn't smoke, its too lean. The LSN is not something you tune w/ every run. Just get it good, and then just adj the HSN as needed for the day.

	(#18)
Finnster KillaHurtz Offline Posts: 2,958 Join Date: Apr 2006 Location: Bucks Co, PA	04.22.2009, 11:01 AM Tuning isn't too bad to get a mostly reliable engine once you do it a couple times. As said, reset everything to the factory settings. It is set to run really rich from fact for break-in. (have you broken it in all the way?) I know on mine I leaned out the HSN at least one full turn from factory, and maybe .5 turn on the LSN. Leave the LSN for last. If its not starting, you are quite safe to lean it out on HSN at least .5 turn to help it out. Idle spd may need to go up to if it doesn't want to start, or dies on idle. You are fine to turn up the idle so far that it will just begin to drive forward after a few seconds still idling. If you can't get to 200, you are way rich. Keep leaning out until you get 220-240. Watch out for the half tank lean on the savage. Best to keep the tank topped up until you get it sorted out to avoid this and add complication. Once you get the idle and HSN reliable and tuned, then mess w/ the LSN. Easiest test is the pinch test. Pinch the fuel line close to the carb. If it runs for a little while, revs up and then finally dies, you are too rich. Lean out a tiny bit (1/8 to .25 turn if way rich) and try again. If it just dies as soon as you pinch the line, feels weak and doesn't smoke, its too lean. The LSN is not something you tune w/ every run. Just get it good, and then just adj the HSN as needed for the day.