Nitro 1/8 Kyosho inferno engine issues
Discussion
Got it started and idles fine but it just doesn't seem to have any power nothing at the top end well in fact it will not rev much.
So far I'd estimate max speed is at best 8mph these cars can do 70mph put of the box. It is in mint condition.
I'm guessing it's a tuning issue? Am using 25% racing fuel.
Help?
Also have foud that even with the mower on level 2 it's too deep for these cars need gravel non grass or Tarmac.
Cheers.
Bloody loud too
This one has the 0.21cc unit and I also have a 0.28cc unit for my other car (bought two useful for bashing while BBQ or beers with mates).
So far I'd estimate max speed is at best 8mph these cars can do 70mph put of the box. It is in mint condition.
I'm guessing it's a tuning issue? Am using 25% racing fuel.
Help?
Also have foud that even with the mower on level 2 it's too deep for these cars need gravel non grass or Tarmac.
Cheers.
Bloody loud too
This one has the 0.21cc unit and I also have a 0.28cc unit for my other car (bought two useful for bashing while BBQ or beers with mates).
Have to think a little about this...
Is the engine run in or is it fresh out of the box?
Change the plug and reset the mixture and idle screw back to the factory settings.
Hard to explain nitro tuning but you can consult google, bit of a faff to get correct and takes time.
The engine will need run in correctly and then tuned for power to reach it's top speed.
Is the engine run in or is it fresh out of the box?
Change the plug and reset the mixture and idle screw back to the factory settings.
Hard to explain nitro tuning but you can consult google, bit of a faff to get correct and takes time.
The engine will need run in correctly and then tuned for power to reach it's top speed.
It's not a new engine.
It's a Kyosho Inferno MP6 as new vintage class. Car had been used aparently 8-10 times in its entire life.
The other one I has not yet started
I think there are two pins to adjust one for low end power you rich it up or lean it out for more grunt then another for high end power and finally a third but that is throttle position.
Could be the third I guess stopping me opening the butterfly fully.
Only thing is full throttle what I have off the line is SLOooooow it also stalls when I brake hard guess I need to adjust the idle somewhat to fix that issue but frankly that's secondary. This car should burn rubber off the line all four wheels should light up.
Lastly how long should I let it idle before I drive it? 60seconds?
It's a Kyosho Inferno MP6 as new vintage class. Car had been used aparently 8-10 times in its entire life.
The other one I has not yet started
I think there are two pins to adjust one for low end power you rich it up or lean it out for more grunt then another for high end power and finally a third but that is throttle position.
Could be the third I guess stopping me opening the butterfly fully.
Only thing is full throttle what I have off the line is SLOooooow it also stalls when I brake hard guess I need to adjust the idle somewhat to fix that issue but frankly that's secondary. This car should burn rubber off the line all four wheels should light up.
Lastly how long should I let it idle before I drive it? 60seconds?
New plug and retune at a guess, often the settings can literally be shaken out of spec. Does the exhaust look especially oily/smokey?
Could also be the throttle settings as you suggest.
I usually get mine running and by the time I faff about clipping the body on it's happy to be driven. I usually have a little drive about as well for a minute before hitting the throttle right open.
If you do a retune make sure you don't lean the mixture too much as it will damage the engine, especially if you are running alot of WOT.
Could also be the throttle settings as you suggest.
I usually get mine running and by the time I faff about clipping the body on it's happy to be driven. I usually have a little drive about as well for a minute before hitting the throttle right open.
If you do a retune make sure you don't lean the mixture too much as it will damage the engine, especially if you are running alot of WOT.
Edited by v8will on Saturday 2nd June 13:04
Welshbeef said:
Exhaust is spotlessly clean like the whole car.
If you mean does it smoke nope well a tiny tiny touch.
If the spark plug easy to get to and simple to change?
RC Nitro runs total loss lubrication so they should smoke a little, you should also find the car is quite oily after being run as the lube sticks to everything. If you mean does it smoke nope well a tiny tiny touch.
If the spark plug easy to get to and simple to change?
Glow plug is on top of engine, what you attach the glow starter to. Screws out with a small hex socket.
May well be a fouled glow plug
v8will said:
RC Nitro runs total loss lubrication so they should smoke a little, you should also find the car is quite oily after being run as the lube sticks to everything.
Glow plug is on top of engine, what you attach the glow starter to. Screws out with a small hex socket.
May well be a fouled glow plug
I've taken the glow plug out and it's totally clean. Glow plug is on top of engine, what you attach the glow starter to. Screws out with a small hex socket.
May well be a fouled glow plug
Nitro engines can be a b
h.
You need to find out what the standard needle settings are and set them to that. What engine is it?
Here's a vid that may help once you have the standard settings http://www.youtube.com/watch?v=ma2_CghxiUk&fea... don't worry about it being for a different car the theory is the same.
h.You need to find out what the standard needle settings are and set them to that. What engine is it?
Here's a vid that may help once you have the standard settings http://www.youtube.com/watch?v=ma2_CghxiUk&fea... don't worry about it being for a different car the theory is the same.
chr15b said:
stalling on braking usually means the throttle closes too far, are you sure its fully opening?
Yep this is what I think the issue is. One question is how fast should it be std? Someone told me 25mph tips in perfect conditions yet YouTube show 100-120km/hr worlds apart am struggling to square the circle so how fast should it be? If its this slow then my word the Inferno is a slow vehicle.
Work from rich, (high speed needle unscrewed) to leaner. There should always be a trail of smoke especially at full throttle. Running to lean especially on a hot day will kill the engine in a short space of time. Low end needle should be adjusted for clean pick up & best idle. The mid range is an overlap of both so they are to a certain extent interdependent.
Is there enough air getting in, tight body fit with limited air flow will also cause problems.
Also the needle settings will vary slightly with weather changes, age of fuel & to a more significant extent with changes of fuel. Try to use one make & mix of fuel & stick to it.
Also inspect the glowplug carefully. If it looks crystaline or white then it is knackered & will need changing.
Is there enough air getting in, tight body fit with limited air flow will also cause problems.
Also the needle settings will vary slightly with weather changes, age of fuel & to a more significant extent with changes of fuel. Try to use one make & mix of fuel & stick to it.
Also inspect the glowplug carefully. If it looks crystaline or white then it is knackered & will need changing.
From the way you are talking you dont have any experience with nitro engines.
If so, I repeat what was said earlier and brushed over.
Before you do anything else set both needles back to their default settings, otherwise you WILL be wasting your time and get nowhere.
Then follow a tuning guide on Youtube or best of all find a mate who knows nitro engines to set it up for you. Either way most of your fiddling will be with the high speed needle not the low end one.
Nitro engine are not plug and play and require fettling. Then all those settings will change when the weather changes.
If so, I repeat what was said earlier and brushed over.
Before you do anything else set both needles back to their default settings, otherwise you WILL be wasting your time and get nowhere.
Then follow a tuning guide on Youtube or best of all find a mate who knows nitro engines to set it up for you. Either way most of your fiddling will be with the high speed needle not the low end one.
Nitro engine are not plug and play and require fettling. Then all those settings will change when the weather changes.
Well first chance I've had to use this since I posted up this thread.
Anyway here goes I burnt two ranks of fuel on short grass. Even up a barely noticeable hill it struggles to get going really struggles then once a bit of momentum it gets going but not really quick I can barely give it more than 15-20% throttle before it bogs down and it's not grounding out on the grass.
One thing when I hold it in my hand and rev it up higher and higher after 20-30 seconds it suddenly changes tone struggling to get there then fk me it like vetec YO and it sings out how I imagined it would but after 10aeconds of doing that engine stops.
Also one two occasions (just before its dry of fuel I only know this as ten seconds later engine stops take she'll off and see no fuel) just before it runs out of fuel it suddenly takes off utterly flying. Also when at this point if I stop then accelerate it rips up the grass - unlike any other time.
So to me that means its running WAY to rich and I need to lean it out to get it running properly so that I can get the power out of it.
Has to be said when it gets going Jesus it is bloody quick. But I want it to be like that all the time.
So help please how do I lean it out and get this great car running like it should.
Anyway here goes I burnt two ranks of fuel on short grass. Even up a barely noticeable hill it struggles to get going really struggles then once a bit of momentum it gets going but not really quick I can barely give it more than 15-20% throttle before it bogs down and it's not grounding out on the grass.
One thing when I hold it in my hand and rev it up higher and higher after 20-30 seconds it suddenly changes tone struggling to get there then f
k me it like vetec YO and it sings out how I imagined it would but after 10aeconds of doing that engine stops. Also one two occasions (just before its dry of fuel I only know this as ten seconds later engine stops take she'll off and see no fuel) just before it runs out of fuel it suddenly takes off utterly flying. Also when at this point if I stop then accelerate it rips up the grass - unlike any other time.
So to me that means its running WAY to rich and I need to lean it out to get it running properly so that I can get the power out of it.
Has to be said when it gets going Jesus it is bloody quick. But I want it to be like that all the time.
So help please how do I lean it out and get this great car running like it should.
There's definately a fuelling issue but without having the car in front of me it's very difficult to diagnose.
Have you tried holding the car in the air and revving the nuts off it? What does this do? When starting the engine you'd always give it a few revs up in the air to get it going and give it a good clear out.
My advise would be:
If you were nearer I'd set it up for you.
Have you tried holding the car in the air and revving the nuts off it? What does this do? When starting the engine you'd always give it a few revs up in the air to get it going and give it a good clear out.
My advise would be:
- reset the mixture to factory setting.
- remove the throttle servo and make sure it's opening the throttle fully - it could be as simple as the servo isn't pulling the slide out enough.
- put in a brand new glow plug.
- get it running but on a box or bench so the wheel are floating and just try out different settings for the throttle and mixture. After a few good goes doing this you'll be fine.
If you were nearer I'd set it up for you.
Hi thanks for the advice.
I have held it in the air throttle wide open its like it bogs down so I feed the throttle in slowly and it builds the revs slowly and then stutters. So I did this for some time and then finally it was like it cleared the cobwebs out and the revs went crazy sounded epic. But after ten seconds engine died and it wasn't empty of fuel.
Note on the 10-15 seconds it really worked on the grass I realised quickly that a 300 foot rear garden is far too small to stretch the legs of this beast...
I have held it in the air throttle wide open its like it bogs down so I feed the throttle in slowly and it builds the revs slowly and then stutters. So I did this for some time and then finally it was like it cleared the cobwebs out and the revs went crazy sounded epic. But after ten seconds engine died and it wasn't empty of fuel.
Note on the 10-15 seconds it really worked on the grass I realised quickly that a 300 foot rear garden is far too small to stretch the legs of this beast...
Welshbeef said:
Hi thanks for the advice.
I have held it in the air throttle wide open its like it bogs down so I feed the throttle in slowly and it builds the revs slowly and then stutters. So I did this for some time and then finally it was like it cleared the cobwebs out and the revs went crazy sounded epic. But after ten seconds engine died and it wasn't empty of fuel.
Note on the 10-15 seconds it really worked on the grass I realised quickly that a 300 foot rear garden is far too small to stretch the legs of this beast...
Why not try to turn the large mixture screw 1/4 turn clockwise and see what happens? There should be less bogging down and more raaaaaaar!!I have held it in the air throttle wide open its like it bogs down so I feed the throttle in slowly and it builds the revs slowly and then stutters. So I did this for some time and then finally it was like it cleared the cobwebs out and the revs went crazy sounded epic. But after ten seconds engine died and it wasn't empty of fuel.
Note on the 10-15 seconds it really worked on the grass I realised quickly that a 300 foot rear garden is far too small to stretch the legs of this beast...
Once you've found the mixture that works best you need to rich it up ever so slightly because it is the fuel that lubes the engine. I once had my turbo burns (model before inferno) running awesome and it was singing like nothing you've ever heard but after a few tanks of flat knacker it free wheeled to me - me thinking it had run out of fuel but it had lobbed the rod through the wall of the engine, bone dry.
falkster said:
Why not try to turn the large mixture screw 1/4 turn clockwise and see what happens? There should be less bogging down and more raaaaaaar!!
Once you've found the mixture that works best you need to rich it up ever so slightly because it is the fuel that lubes the engine. I once had my turbo burns (model before inferno) running awesome and it was singing like nothing you've ever heard but after a few tanks of flat knacker it free wheeled to me - me thinking it had run out of fuel but it had lobbed the rod through the wall of the engine, bone dry.
Will doOnce you've found the mixture that works best you need to rich it up ever so slightly because it is the fuel that lubes the engine. I once had my turbo burns (model before inferno) running awesome and it was singing like nothing you've ever heard but after a few tanks of flat knacker it free wheeled to me - me thinking it had run out of fuel but it had lobbed the rod through the wall of the engine, bone dry.
How about the screw on the top a smaller one? I've tried turning that up to a full turn one way and the other for zero discernible difference.
Need to dig deeper to see where the second screw is
Welshbeef said:
Will do
How about the screw on the top a smaller one? I've tried turning that up to a full turn one way and the other for zero discernible difference.
Need to dig deeper to see where the second screw is
I'm pretty sure the other one is for tickover. It's the big one you need to worry about. How about the screw on the top a smaller one? I've tried turning that up to a full turn one way and the other for zero discernible difference.
Need to dig deeper to see where the second screw is
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