Hi All,

Any idea why my car is running sooo inconsistent? , idle gap .5mm bottom needle as lean as i can go without raising the idle so its too fast.. top end runs as high as it can without over hanging the revs coming back down. Just wont hold a consistent idle.

https://youtube.com/shorts/lbzisG6j21k?feature=share

Is this a new engine that you are breaking in?

Already broken in, was purchased by a racer that has broken in as per manufacture instructions, what makes you say that? u reckon he hasn't completely broken it in?

Idk. Try richening the top 1 hour. To me it sounds lean on the top. Red’s engines can be finicky.

Sounds like you did follow the JQ video about tuning?
I read 0.5 idle gap and then tune the LSN to the right idle. Nope, that is not the way.

what is the way?

Find the right tuning for the LSN and HSN and correct the idle when needed, the idle is basically the last one to set.

That JQ instruction is based on a certain OS carb but you have a REDS engine that is different. Beside that, the JQ instruction of a 0.5mm gap and tune the LSN from there does sometimes also not work on the OS carb, tolerances, different fuels and weather conditions has a lot of influence on the final tuning.

Tried several different methods, car will run great when driving , its just the idle that fluctuates and stalls all the time...

In the vid you open the throttle by hand so the servo is not powered, Does it also happen when you switch on the radio and receiver?

And did you try a fresh glowplug?

Hey,
Yea tried several glow plugs and does same via remote.

Hello boomtheroom,

You might try to check if the tank is not leaking. You need to take out the tank from the car, empty the tank, block the fuel outlet, put a long Fuel Line on the Pressure Inlet. Then submerge the Tank into a bucket of water, then blow the Pressure Line. If the tank is not properly sealed You could see bubbles coming out. Usually from the Lid Seal.

Cheers..

QUOTE=boomtheroom;16142131]Hey,
Yea tried several glow plugs and does same via remote.[/QUOTE]

i suspect the brand of fuel you are using is the problem. Switching brands or nitro contend or oil lube contend will requires you to re tune. Use fuel with 14-18% oil lube to start and choose you nitro % 30% is more than enough. set carb back to factory settings and break in again and tune again.

If it was me I'd ignore the oil advice from monster guy and richen the lo needle a tad. His advice is always bogus.

Please ignore anything 1995 Monster T says. His only 5 braincells only drink oil, the high % stuff to.
Mods still refuse to boot him so sorry about that aswell.

heres a running video