[Eli the rc guy]

Kk.. my Savage X 4.6's engine has been pretty much all trouble but I don't mind fixing it and all the settings since I'm kinda used to it now..( will not for the sake of me keep a damn tune, and I keep blowing glow plugs!!!) Anyways once i got a 5 replacement glow plug and got a spare just incase the engine pretty much started up right away cold as pluto and it ran without dieing given throttle. This is the odd part now. I don't quite remember what I had done with the LSN the last time I had trouble with the throttle but it has a very very slugish start and once it hit higher speeds it zoomed off ( since I had my HSN pretty much perfect). I took a look at the LSN and it looked kinda lean.. so i richened it up it seemed to help abit better but not as good as it was when every setting was right ( wheelie right away) I also did not want to richen too much because at that point the idle seemed to get pretty low and I did not want it to bog down. So I tried leaning again and had basically the same result. I didn't want to lean much further.. So, if the LSN is leaned too much will it have the same effect of a rich LSN? Slow throttle response. Or should I keep leaning out the LSN and just richen the idle?

[ronestar]

You can get similar symptoms from a lean or rich low end setting, it takes experience to tell the difference. It sounds like you're a tad rich here though.

Anyway, you should never ever be tuning the idle anyway to get the engine to run properly, that will give you an artificial tune, and make the engine very inconsistent. The idle screw does not effect fuel flow so don't tune it, the only reason to touch the idle screw ... is to get the engine to idle well .. funnily enough.

After tuning the top end, start rich on the low end needle and start leaning in from there till you get good performance and smoke with no bogging from a standing start. As you are tuning the low end you might have to adjust the idle to get it to run, but adjust the idle according to the needles, not the other way round.

[Eli the rc guy]

One of the only reasons I have been messing around with the Idle is just because in the beginning everything was extremely rich to the point where I could not even fire up the engine ( the first time) so I had to lean the idle to add more air flow and from there on I sometimes twitched around with it. The manual says in the carb the space there should be 2mm at idle. I had that setting for a while.. I don't know why I didn't set it back that way. Anyways the next time I get it fired up I will do that for sure. It has been quite a while since I started it up this time that is why I don't really remember that well what I was thinking at that moment. Anyways I also had to stop tunning that day because my igniter ran out of power.


I will have to set it back to factory settings and re-do all the LSN again I think. This is the 3 ed time I've had to re-tune.. I learnt my leason no more idle twitching.. only back to 2 mm and leaving it that way!!

[Eli the rc guy]

Hm.. where to start... Ah ok here we go. Alright so today I finally got my temp "gun". A Losi one which is also a flat head screw driver.. VERY USEFULL TODAY AND WOULD RECOMMEND IT. Anyways, I brought the Savy out and put the fuel tank back into the savy blah blah blah blah blah blah, primed the engine and fired her up from the last settings I had on the truck. Fired up but it sounded really really off. Everytime I gave it throttle it DIED. This is the same trend I've seen before... This kept going with my adjusting the LSN every time for about 7 minutes... Got pretty frustrating. Then I checked what I dreaded the most if the glow plug fouled or not ( if it did it would have been the 6 th one) I took it out and tested it, it was the brightest glow plug I have EVER seen. Put it back in and kept repeating... start, throttle, die, tune, start throttle, die, tune for about another 7 mins. SO I then realized all my tune probably just made it uber confusing so I set all back to factory settings (flush everything). Tried to fire her up but wouldnt go, so I adjusted the idle and LSN untill she still ran when throttle was given. Fine tuned the Idle untill she didnt stall AFTER throttle was given ( 2 mm in the carb just like the manuel says) then wow.. sounded great. Gave it a few runs down back and forth of the ally and it had GREAT acceleration right off the bat it seemed like she wanted to wheelie, so just a little bit more lean and it seemed like it wouldnt get any better... 2 passes... woot no more throttle responce.. The engine was revving accordingly but the truck wasnt moving.. a closer look after killing the engine the pinion came out loose and wasn't turning... I cant believe it... I have the worse luck ever... why now out of all times did it come loose..... Anyways.. At least the engine is A-ok. Just wanted to share...


FYI: The engine sounded like a sick dog before I reset all the needles and got it to idle properly.

PS: After killing the engine it was at 170 F, but of course I didn't expect it to be that hot after such short running.. Plus I never took it over to 2nd gear.

[Eli the rc guy]

Im going to re-use my thread here... My clutch shoes keep slipping off the clutch bell.. how would I fix this? I've already tried to roughen up the shoes and inside the clutch bell.. didnt seem to work..

[QUAILTY ONE]

Originally Posted by eli the rc guy

kk.. My savage x 4.6's engine has been pretty much all trouble but i don't mind fixing it and all the settings since i'm kinda used to it now..( will not for the sake of me keep a damn tune, and i keep blowing glow plugs!!!) anyways once i got a 5 replacement glow plug and got a spare just incase the engine pretty much started up right away cold as pluto and it ran without dieing given throttle. This is the odd part now. I don't quite remember what i had done with the lsn the last time i had trouble with the throttle but it has a very very slugish start and once it hit higher speeds it zoomed off ( since i had my hsn pretty much perfect). I took a look at the lsn and it looked kinda lean.. So i richened it up it seemed to help abit better but not as good as it was when every setting was right ( wheelie right away) i also did not want to richen too much because at that point the idle seemed to get pretty low and i did not want it to bog down. So i tried leaning again and had basically the same result. I didn't want to lean much further.. So, if the lsn is leaned too much will it have the same effect of a rich lsn? Slow throttle response. Or should i keep leaning out the lsn and just richen the idle?

if your throttle response is sluggish lean your lsn 1/8 incredment run a few passes try the pinch test at the fuel line coming from the card to the fuel tank pinch the line the engine should run 3-4 second than speed up and dies keep leaning lsn until pinch test is correct after each adjustment remember to always do a few passes