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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> HPI Racing >> HPI On-Road >> HELP Stalling problem rs4 evo
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HELP Stalling problem rs4 evo - 3/1/2007 11:06:12 PM   
GC8


 

Posts: 9
Joined: 3/1/2007
From: pontiac, MI, USA
Status: offline 		I just got my nitro rtr3 evo, so im a straight up noobie, i went through all the trouble shooting already and its still doing the same thing. So ok here is my problem my rc will start up but once its on it will go crazy for like 2 secounds without me touching the remote and then shut rite off, its got gas, glow plug is fully charged btw its a roto start. please help me out Thanks
       Post #: 1

RE: HELP Stalling problem rs4 evo - 3/1/2007 11:25:44 PM   
iexion


 

Posts: 795
Joined: 8/1/2006
From: Sioux Falls, SD, USA
Status: offline 		you have ur carb open too much im guessing.. Try to set your Throttle servo so te engine has a closed carb, also make sure your radio gear is set so everything is neutral.

http://hpiracing.com/graphics/instr/n3ss/kn3_31.jpg << its kind of confusing but read thru it, it will give a better insight.

And if all the linkage is correct then you might need to lower your rpm with the IDLE screw

http://hpiracing.com/graphics/instr/n3ss/kn3_32.jpg

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RE: HELP Stalling problem rs4 evo - 3/2/2007 12:03:11 AM   
hpi apollo



Posts: 2639
Joined: 5/13/2006
From: Georgetown, KY, USA
Status: offline 		www.rchobbies.org/cars_eng-tuning.htm that should help, if you dont feel like reading i dont care you will WANT to read this whole guidehttp


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RE: HELP Stalling problem rs4 evo - 3/2/2007 1:37:29 AM   
GC8


 

Posts: 9
Joined: 3/1/2007
From: pontiac, MI, USA
Status: offline 		Thanks guys after a hour and a half of tunning its not stalling no more, but it spits alot of gas outta the muffler is that normal? also how do i know if your running rich or lean? Thanks

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       Post #: 4

RE: HELP Stalling problem rs4 evo - 3/2/2007 1:49:16 AM   
jeremiah__brown


 

Posts: 10
Joined: 9/23/2006
From: MountAiry, GA, USA
Status: offline 		Make sure its smoking good enough so you can see a steady plume coming out of the tail pipe & it should be good. There will be some oil coming out of the tail pipe thats not fuel thats the oil that keeps the motor lubricated, its normal. If you want to check the engine temp. use a drop of water on the top of the head. If the drop sizzles & evaporates within 3 seconds the motor is too hot " too lean". When the motor is running at the right temp. the water drop will take 5 to 8 seconds to dry up. Good luck.

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       Post #: 5

RE: HELP Stalling problem rs4 evo - 3/2/2007 3:33:00 AM   
iexion


 

Posts: 795
Joined: 8/1/2006
From: Sioux Falls, SD, USA
Status: offline 		Also, If u dont have any already, Go out and by some "after run oil". you can get this stuff at your local hobbyshop for $2-3 After your doing running your car, make sure theres no gas left in the engine then put around 5-8 drops in the carb and use the roto start to lube the engine, the after run oil will help keep your engine lasting longer and keep anything inside from rusting. What i do is take out the glow plug and put extra inside the engine its self. U dont have to do that step but its just some extra insurance for your engine. But i would take out the glow plug when u put the oil in the carb . It just makes it easyer to lube the engine.

It seem (for me anyways) that after run oil makes it easier to start up next time i want to drive my car

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RE: HELP Stalling problem rs4 evo - 3/2/2007 3:59:17 AM   
jonsmilez



Posts: 243
Joined: 12/11/2006
From: Toronto, ON, CANADA
Status: offline 		i didnt read 2 much of the forum, i kinda skimmed through.. but i didnt see anybuddytalk abotu batteries.. and when u say go crazy... was it the servos going crazy? like ur sterring and throttle rods?... cuz that would be ur batteries, just happened 2 me.. then i ordered a hump pack(a hump pack is a rechargable battery cell and it also has more power then 4 AA, its basicaly like 5 AA so instead of getting 4.8V from 4 AA batteries u get 6V (most AA batteries has 1.2V), which supposebly makes a difference--i would assume so but i havent recieved the hump pack in the mail yet... let us know what the problem is.. and good luck.. if u still cant figure it out remember local hobby stores are almost happy 2 hepl u out, and they usually sont charge that much... g luck bro

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       Post #: 7

RE: HELP Stalling problem rs4 evo - 3/2/2007 11:59:41 AM   
GC8


 

Posts: 9
Joined: 3/1/2007
From: pontiac, MI, USA
Status: offline 		Thanks guys, i forgot to mention that when i start up the car it wont idle, the wheels will just spin until i turn it off, and i just put new batteries in the remote and the car.

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       Post #: 8

RE: HELP Stalling problem rs4 evo - 3/2/2007 2:22:30 PM   
iexion


 

Posts: 795
Joined: 8/1/2006
From: Sioux Falls, SD, USA
Status: offline 		Yea the engine needs to be "pre tuned" so u can break it in. Set the low speed to fully closed (clockwise) then open it 3 full turns (counter clockwise) u shouldnt have to tuch the high end needle. always run with the air filter on!

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       Post #: 9

RE: HELP Stalling problem rs4 evo - 3/2/2007 6:51:10 PM   
GC8


 

Posts: 9
Joined: 3/1/2007
From: pontiac, MI, USA
Status: offline 		Ok ill try that agian, but does the smoke from the exhaust sting your eyes?

Update. Try that agian still the same wont work, anyone know whats up it seems like when i start it up its in gear and will keep on going till i force it to shut off. throttle and everything works except for the brakes.

< Message edited by GC8 -- 3/2/2007 7:52:08 PM >

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       Post #: 10

RE: HELP Stalling problem rs4 evo - 3/2/2007 9:27:15 PM   
hpi apollo



Posts: 2639
Joined: 5/13/2006
From: Georgetown, KY, USA
Status: offline 		there are only a few things that cause ti to take off
-idle is too high
-clutch is damaged or dragging
-air leak causing engine to run lean and rev
-tuning is just lean


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       Post #: 11

RE: HELP Stalling problem rs4 evo - 3/3/2007 1:07:23 AM   
HeLLsGoD



Posts: 719
Joined: 2/10/2007
From: hellJP, ANTARCTICA
Status: offline 		Also check your carb opening + radio trims. Pop out your airfilter and it should have a 1mm gap on the carb at neutral and open up completely at full throttle and brakes should work 100%

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RE: HELP Stalling problem rs4 evo - 3/3/2007 1:25:38 AM   
iexion


 

Posts: 795
Joined: 8/1/2006
From: Sioux Falls, SD, USA
Status: offline 		Might need to take it to your hobby shop, if all else fails

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RE: HELP Stalling problem rs4 evo - 3/3/2007 3:24:59 PM   
GC8


 

Posts: 9
Joined: 3/1/2007
From: pontiac, MI, USA
Status: offline 		I think i know the problem, how do you adjust the throttle servo? do i just do it from the controller?

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       Post #: 14

RE: HELP Stalling problem rs4 evo - 3/3/2007 5:43:34 PM   
iexion


 

Posts: 795
Joined: 8/1/2006
From: Sioux Falls, SD, USA
Status: offline 		Either that way or take off the hardware on the servo and start over. What i mean is once u have the servo gear off ( not the servo it self) turn on the the transmitter and the battery box. Make sure the carb is set to its close position with the 1mm gap and then put the hardware back on the servo. This should have everything set so its in the correct position with out haveing the carb too far open. you dont need to take off the hardware on the engine/carb just the servo its self. Make any since?

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       Post #: 15

RE: HELP Stalling problem rs4 evo - 3/3/2007 6:53:20 PM   
GC8


 

Posts: 9
Joined: 3/1/2007
From: pontiac, MI, USA
Status: offline 		I have already done that befor, could it be my clutch dragging or damaged, because my brakes dont work eighter.

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RE: HELP Stalling problem rs4 evo - 3/4/2007 1:55:46 AM   
HeLLsGoD



Posts: 719
Joined: 2/10/2007
From: hellJP, ANTARCTICA
Status: offline 		I think its jsut ur servo man, if your brakes arent working then most likely your throttle isnt working properly either. Just take it to ur local hobby store and get him to check it out. take pics for us? and maybe we can see better

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- HPI RS4 - HPI sprint 2 -
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