Have you Ever Reached That Point
#1
Have you Ever Reached That Point
ok so heres the deal ive reached a point in my tuning process that i dont know what else to do everything is running perfect temp. goes up in down but still within range... as long its not in the middle of the hot iraqi day... but the problem that i am running into is that when i hit the brake the engine cuts off and when i say cuts off i mean it seems like it completly cuts off the fuel or somthing i need help any ideas
#2
check your throttle linkage. when you hit the brakes it might be closing the carb. if so all you have to do is reset your linkage. so that at N the carb is fully closed and when you hitthe brakes it does not move. and then just turn your idle screw in to open it back up.
#3
Does it idle ok if you don't brake? I was going to suggest looking at your clutch. If the springs are dead or the shoes are hanging up you could be stopping the engine by locking the brakes up before the engine has idled down and the shoes are still dragging on the bell.
#4
The idle is fine it will idle all day as long as i dont hit the break im going to try to reset the linkage and see if that helps and that might be the problem because i just put a grp engine on there with new futba servos....
#5
Tech Master
iTrader: (76)
Does it idle ok if you don't brake? I was going to suggest looking at your clutch. If the springs are dead or the shoes are hanging up you could be stopping the engine by locking the brakes up before the engine has idled down and the shoes are still dragging on the bell.
#6
Tech Master
iTrader: (10)
All you have to do is pull the air filter assembly off..(clean the outside of the assembly and the engine....You don`t want any dirt getting in the carb)With the air filter off look down into the carb and hit the brake.If it closes completely then it is your idle gap......If it doesn`t close and there is a 1-2mm gap them its most likely a clutch...
hope this helps
hope this helps
Last edited by rossoh10; 06-08-2009 at 11:16 AM.
#8
Tech Fanatic
iTrader: (25)
+1... what's happening is when you have your radio turned on, the servo holds the carb open just enough. this is due to your trim setting. the zero point pulls the carb open just enough. when you hit the brakes, the servo is closing the carb too far and causing your engine to die. to stop this, you must turn the idle screw in to create a bigger idle gap. this way, the carb stays open as much as it needs to properly idle regardless of servo position.