Originally posted by Honda_Civic_Si
Hey, I just want to thank everyone for posting so much information for me - this is such a great site!
Anyhow - here is an update for everyone.
Firstly, I charged my glowplug ignitor for 15 hours like the instructions say. It shows a good charge when connected to a glow plug.
Secondly, BuggyMulisha - that sounded like you were talking to someone who was in the R/C thing for a while, let alone a 5 year old!
SO, in the end - I took it back to where I got it and they started it for me! Yay! They tuned all the things that needed to be tuned and now I can start it myself, phew!
I broke in the engine for 4 tanks of nitro, what a long wait. It seems to idle with a high RPM so I lowered it a bit and now it doesn't konk out by itself - I assume I did the right thing.
(I am really new to engines and nitro R/C)
As I was saying, when I now try to run the car, it doesnt do anything - it just revs and then it seems to threaten to cut out on me (when pushing the throttle on my controller)
any ideas as to why this may happen?
(And it is actually +4 here in Calgary!)
OK I have a different car but have had a similar problem, I will describe my symptoms and if they match yours then my solution may help you ok hwg :
I started my engine (pull start) and while I was fitting the body I noticed the engine note change (revs drop) and it ran for approximately 6 seconds and it stopped, so I restarted it and blasted off bodyless to warm engine, and discovered that the engine would "flat spot" under power dump a heap of smoke then shoot off, after seeing this for the first time I decided to come to a stop and do it again, and again same thing, so I drove back over to me for adjustment and again the engine note changed and it stopped, so to combat the problem I reduced the idle mix screw 1/2 turn and the rpms of the engine increased, so I had to close down the idle set screw (less throttle at idle) until the car would sit on the spot at idle once I did this my high speed needed an adjustment but time got the better of me and it never happened.
In closing most people are very
reluctant to tell somebody new to lean out their engine as if you go too far you will blow engines, it is much cheaper to blow plugs than engines
when tuning the engine familiarise yourself with the carb fitted to your engine where the adjustment screws are and what they do, with some experience just listening to the engine you will know when it is about to stop due to idling for too long another rule of thumb is if there is always a visible trail from your exhaust you will be always be on the slightly rich side, furthermore when your engine is idling watch the exhaust and see what its throwing out, no visible smoke == too lean
lots of smoke /droplets == too rich
also tightening these screws as in (doing up) leans the setting, loosening the screw (undoing) richens the setting, when tuning err on the rich side and if you suspect the engine is running too lean change it asap too lean for too long will fry engine quicksmart
to answer a possible question before you ask it :
your question : what made you decide to lean low speed :
that was because my idle screw was as wide as it would go, implying that the engine was running too rich and bogging down on fuel, and as this experience tought me is to consider where the other settings are to aid you in a tuning decision
ugh geeze this is long I hope it helps somebody