Hard first day with savage x 4.6

[nafie]

When breaking in my 5.9 I ran into a few issues similar to yours and my main problem was that the stock LSN setting on it was way too rich. I know you have a different engine, but here is what worked for me. First try leaving the igniter on for a bit until you warm up a bit then pull it off. If the engine still stops when you remove the igniter then double check your idle screw setting, and try leaning out the LSN at 1/8th turns until you are able to achieve a decent idle. Also search you tube for the HPI videos on break in and tuning. The thing to pay attention to when tuning is the sound of the engine.

Thanks, Yeah I have been leaving the ignitor on and that helps but even when I have keep it running at idle I can't get those idle temps above 150f so I think you're advice on leaning out the lsn may be of help. Also i have read that 20% fuel I should be running a hotter plug maybe? what outside temps are you operating at?

 

[Metalhead Matt]

Lean it a little. The temps have to reach at least 200. As long as you're getting smoke, you're fine. Running overly rich is only stressing the internals with hydraulic pressure from unburned fuel. And not reaching proper temps is causing the engine not to expand properly and causing premature wear. Get it to run between 200-230, run it for a few minutes at those temps, shut it off and put the piston to the bottom of the stroke. Let it cool all the way and repeat. Read the heat cycle sticky at the top of the nitro forum. Use a hair dryer to preheat the engine before restarting it.

 

[2revo1maxx]

If it's less than 50° out make sure you cover the head. Cold weather can wreak havoc on these little things. You want roughly 200° in 60° weather, but the best thing to do is richen it until it loses power, then slowly lean it back for performance.
If you have a good tune at 60° outside, then it'll be rich when it's 80° outside. Remember to lean it slowly and wait for the engine temp to rise before you lean it more......A well tuned engine will run rich until it reaches operating temps.
The ODO #99 is a great choice for that engine, but you could also try the #100.

 

[nafie]

Lean it a little. The temps have to reach at least 200. As long as you're getting smoke, you're fine. Running overly rich is only stressing the internals with hydraulic pressure from unburned fuel. And not reaching proper temps is causing the engine not to expand properly and causing premature wear. Get it to run between 200-230, run it for a few minutes at those temps, shut it off and put the piston to the bottom of the stroke. Let it cool all the way and repeat. Read the heat cycle sticky at the top of the nitro forum. Use a hair dryer to preheat the engine before restarting it.

If it's less than 50° out make sure you cover the head. Cold weather can wreak havoc on these little things. You want roughly 200° in 60° weather, but the best thing to do is richen it until it loses power, then slowly lean it back for performance.
If you have a good tune at 60° outside, then it'll be rich when it's 80° outside. Remember to lean it slowly and wait for the engine temp to rise before you lean it more......A well tuned engine will run rich until it reaches operating temps.
The ODO #99 is a great choice for that engine, but you could also try the #100.

Thanks so much i finally got it ! Leaning out the lsn cured the stalling got it up to temps. My gut said to lean it ou but hpi manual doesn't reccomend adjusting lsn but then the video that come with truck shows how but only after break in! But i probably ran 7 tanks at 150 degrees or less at 10 bucks a quart! plus probably stressed the motor more. oh well ill beat this motor and maybe get the next one right. how senstive are these motors to break in? all realative I know goos info on adjusting slowly and let the temps rise so that first hand today I was making adjustments to quick. Wouldnt have learned as much without all the headaches and you guys thanks again. Wanted to finish what fuel I had left but my daughter crashed my buddys wheeler and broke her collar bone!