need help with K8T problems

[YourDogg]

well i took my K8T RTR for break in and got back 5 minutes ago...so i have some problems.... first off my receiver on/off switch doesnt work so ihave to connect and disconnect the battery for on/off......Second it wont start.....Third when i pull on the pull start it is really hard to pull (compared to my friends) and it makes a ping/clank noise (not normal one) when you pull it..... i was stoked to drive it today cause its my day off but i guess not:(:(:( so any1 has any ideas how to get it working please post them here.

[vnmsgt]

Your motor is probably flooded or the motor is still really tight. When they are new they will make the ping or clank noise. Check to make sure your glow plug is lighting up. Remove your plug and turn the truck upside down and see if fuel comes out of motor. Also turn motor on its side of the exhaust and see if fuel leaks out.

[YourDogg]

ok i will go try those but another thing i found was when i take the glow plug out it pulls fine?!?!!??!?:confused:

[vnmsgt]

That is because when you take the glow plug out you do not have any compression. Also do not pull your pullstart to hard or too far out as you can easily break it.

[skeller]

Is the motor brand new?

[YourDogg]

yeah today is the first time i try and start it. ok so no fuel coming out of engine or exhaust. i have good news though. its making a normal engine noise(like when its running) but it wont catch. it wont start fully and idle. you nkow what i am saying right?? cause i cant explain it very good.

[vnmsgt]

Put your finder on the end of the exhaust pipe hole and pull start it about 2 -3 times and them take your finger off. This primes the motor and gets fuel to the carb. Then pull start it again and see if it starts. Sounds like it wants to start but not enough fuel.

[YourDogg]

ok brb.

[YourDogg]

ok i primed it and no go doing same thing it was before. i going to try and maybe prime it more but i dunno.

[skeller]

It's too rich.

[vnmsgt]

So it sounds like it wants to start right??? If so then take your plug out then and pinch the fuel line going into the carb and turn the motor over a bunch of times to clear the fuel out of the cylinder. Then again make sure your glow plug lights up real bright and then put it back in and then pull start it again and see. Try and turn the HSN in about 1/8th turn too.

[YourDogg]

yes it did start for like 1-2 seconds then died and i will go try that then.

[vnmsgt]

Try to leave your glow ignitor on it and not give it any gas for like 20 seconds. It will burn some of the fuel in the combustion chamger and not be so rich and then give it some fuel a little bit to rev up and then take ignitor off.

[YourDogg]

ok the fuel line going into the carb is the one that goes into the engine right?? when it started it died before i could do anything.

[vnmsgt]

Did you read my last post.

[vnmsgt]

Also are you heating the motor up? A very tight motor will be hard to start and should be heated up above about 160-170 degrees to loosen up the motor.

[YourDogg]

yes i read your last post. how would i heat it up without starting it?

[vnmsgt]

Heat gun or a womens hair dryer (blower) I use my wifes hair dryer. What about your friend who has one. He cannot help you at all. Better that he is there instead of me on the forums trying to type something out to you. LOL!

[YourDogg]

ok ill try heating it. i can get it started for like 3-5 seconds but it wont stay idleing and my freind is in edmonton so not here. and you are smarter then him.

[vnmsgt]

How is it dying now? When you give it throttle or just idling it dies? If when you give throttle then lean it out a little more. If at idle and idle is low try raising idle a little.

[vnmsgt]

Well I have to leave work now. I will be back maybe late tonight. If anyone else reads this please list your suggestions to help out please.

[YourDogg]

just idleing it dies so im going to rasie idle. (clockwise right) and im going to heat it since its only at 120F.

[YourDogg]

ok i got it running for around 20-30 seconds after i heated it up and stuff and left the igniter in for a bit i took it out and it stayed for awhile then died. now from trying to start it so much my 2400mah glow ignitor is dead. plus my crappy hair dryer crapped out. so ill try again maybe this weekend if not then monday. also could it not be starting because of too much oil on the filter?? cause i didnt know how much to put on so i made it look blue. not dark blue but a light blue.

[bc24fl]

I don't think too much oil will prevent it from starting so don't worry too much about that. When you get it going again why not give it a little throttle .

[YourDogg]

yeah i was about to when it died.

[YourDogg]

ok i tried about 15 minutes ago and heat it up first and......(Drum roll)..............it started and was idleing.....but of course as soon as i took out the glow ignitor it died in 2 seconds. i tried giving it gas and it would accelerate then die. (after i took out ignitor i hit some gas)

[vnmsgt]

The glow plug might be bad. It is normal for them to go bad pretty quickly sometimes during break-in. For example if you try it again and keep the ignitor on it and it will run around your driveway or yard and not shut off or rev up and not shut off but as soon as you take the ignitor off it dies, I would put another plug in it. If this is the case what is happening is the glow plug once started and running, when you remove the ignitor it is not burning bright or hot enough to burn the fuel, therefore when the ignitor is on it helps the plug get hotter and burn fuel while it is running.

[YourDogg]

ok ill have to try this another time cause its late and i cant for the next three days. well maybe saturday and sunday but not tomorrow.

[BiggDogg]

I tried getting it going as well (the Dad ). I have many years experience with airplane RC engines but this has me a bit stumped. It gets fuel. The glow plug is red hot. I tried leaning it in from default setting at half turn increments, then starting at full turn out and riching it back out at half turn increments. I found what I think is the sweet spot, but only get it to sputter a few times, maybe a couple seconds of running.
What about the other needles? I wouldn't think they would need any adjustments... I never made any to the numerous airplane engines I've had.

[vnmsgt]

Change the glow plug yet??? rpg711 had a bunch of problems with his ZX1-R trying to get it running and it was the glow plug.

[YourDogg]

I tried getting it going as well (the Dad ). I have many years experience with airplane RC engines but this has me a bit stumped. It gets fuel. The glow plug is red hot. I tried leaning it in from default setting at half turn increments, then starting at full turn out and riching it back out at half turn increments. I found what I think is the sweet spot, but only get it to sputter a few times, maybe a couple seconds of running.
What about the other needles? I wouldn't think they would need any adjustments... I never made any to the numerous airplane engines I've had. O My God :eek: its my dad on the forums:eek::eek: not expected.. but we got it going now it just tooking some adjusting with the needles. going to do break in now.

[bc24fl]

I tried getting it going as well (the Dad ). I have many years experience with airplane RC engines but this has me a bit stumped. It gets fuel. The glow plug is red hot. I tried leaning it in from default setting at half turn increments, then starting at full turn out and riching it back out at half turn increments. I found what I think is the sweet spot, but only get it to sputter a few times, maybe a couple seconds of running.
What about the other needles? I wouldn't think they would need any adjustments... I never made any to the numerous airplane engines I've had.

LOL, same here my airplanes were a breeze compared to this.

[YourDogg]

ok so i was doing break in and was trying to keep temperature around 200F but had it around 250F at one point but got it down. whats a normal/average running temperature??

[razzor]

good temp is in the 110/115 deg/c area i think thats about 230/240 deg/f

Dont stress to much with the temp as teh motor will run a bit hotter as it runs in and will slowly drop temps.
Just keep a good smoke plume and run it around on half throttle for 6-10 tanks

[vnmsgt]

Glad to see you got it running!!!

[Nico]

I got the same ffing problem with my ZX1-R today and that was the glow plug, i install a new one and it still not starting. Will look if i had a good glow plug and i know that my ignitor need to be recharged.

[vnmsgt]

It seems like some of the RTR's have the idle gap to small maybe. Make sure you got a 1mm idle gap by turning in the idle screw till you get 1mm. Then make sure your endpoint settings on the controller are not holding the servo closed too much shutting off your motor.

[YourDogg]

ill take a picture tomorrow of it and you can......see it i guess i dunno....