ninja jx21 problems
#1
ninja jx21 problems
got my engine tuned by a local hobby shop ran great for a while. Ever since the weather got colder it started running crappy and started turning off. now its running great to me but having lots of trouble starting it after running it notice it starts easier with the air filter off and also notice lots of fuel spitting out the carb i guessing its rich but like i said it runs great while running please help.
#2
Tech Fanatic
iTrader: (12)
Im not sure if this will help, but does the slide open and close easily? Mine was very tight and would stick....causing all types of problems. I had to take the slide out and use a scotch bright bad then a buddy filed it down in one of the grooves. There must have been a little burr in there cuz its very smooth know and runs great! I was a little bumbed about the motor at first, although Im very impressed now.
#3
First of all! don't ever start your engine without an air filter.
the reason it's hard to start when it's warm is the piston expands as soon as you hear that very first pop. when the engine is fully broken in it will start much easier.
You should read this entire thread. http://www.rctech.net/forum/nitro-of...ugen-jx21.html
the reason it's hard to start when it's warm is the piston expands as soon as you hear that very first pop. when the engine is fully broken in it will start much easier.
You should read this entire thread. http://www.rctech.net/forum/nitro-of...ugen-jx21.html
#4
Tech Master
iTrader: (4)
First of all! don't ever start your engine without an air filter.
the reason it's hard to start when it's warm is the piston expands as soon as you hear that very first pop. when the engine is fully broken in it will start much easier.
You should read this entire thread. http://www.rctech.net/forum/nitro-of...ugen-jx21.html
the reason it's hard to start when it's warm is the piston expands as soon as you hear that very first pop. when the engine is fully broken in it will start much easier.
You should read this entire thread. http://www.rctech.net/forum/nitro-of...ugen-jx21.html
#6
engine has been fully broken in with 8 full tanks of gas...my seems to be opening and closing perfectly fine, plus im using a p3 os ultra hot plug...the main problem I'm having is the car won't start after I turn it off and it's off for no more than a min with engine already warm...I notice that gas spits out of the carb during cranks and the reason why I take out the filter is because it seems that the gas spits out in the filter and then drips back down in the carb causing it to flood
#8
Tech Fanatic
iTrader: (35)
engine has been fully broken in with 8 full tanks of gas...my seems to be opening and closing perfectly fine, plus im using a p3 os ultra hot plug...the main problem I'm having is the car won't start after I turn it off and it's off for no more than a min with engine already warm...I notice that gas spits out of the carb during cranks and the reason why I take out the filter is because it seems that the gas spits out in the filter and then drips back down in the carb causing it to flood
#9
Nm
#10
the engine has about 1 1/2 gallons of fuel through it. well today i took it to my fav hobby shop and to them it seems to be the con rod. it runs fine when on just takes foe ever to start after its been on they said it has play and thr kid who told me that is the engine builder kid at the shop and hes also a nat racer so im guessing he knows what hes talkin about but we'll see.