Revo must die

[saddlehorse]

Got the motor all sealed up and the carb slide moving freely. Even closes alway to gap now.
Lsn set to 2 turns out like manual says and it still idles way way high even with smallet gap than it should have.
Can screw lsn in but then it just dies

And on test run got distracted anf hit a tree so hard it broke my exhaust coupler.

Need to get this idle fixed or it is gone on trade.

 

[Nitro4910]

Richen the LSN, my summer tunes had the LSN @3.2 & 3.6 turns out, the 2/flush setting is just to get it started.

Reset the Idle gap to 1mm & fatten up the LSN.

 

[saddlehorse]

Will try that thanks.

Didn't have these problems till I hit a phone pole and then it has dropped under 50deg outside.

 

[Nitro4910]

The colder it is the denser the air is, you have to richen the needles to compensate for it.
The upside is you get more power out the engine as the efficiency go's up due to the denser air.

 

[saddlehorse]

So richer lsn will lower idle? Seems like it would be opposite.
The gap is just shy of 1mm.

Never had these kinda problems with a nitro like I have with this revo.
remind me to never get a used one again.

---------- Post added at 6:41 PM ---------- Previous post was at 6:40 PM ----------

Also going by pinch test it dies within about 4 seconds of pinchinh fuel line

 

[Nitro4910]

Usually if it's lean it will idle higher.

Pinch test should be in the 3's, 4sec would seem to be on the rich side.

Used is always a toss of the dice unless you know/trust the seller.

 

[saddlehorse]

Ok will richen her up a tad and try it.

Usually I wouldn't buy used anything but took revo on tradr for a surround sound I took on trade and didn't need. All in all I got revo for cost of gas cause what I started trading with I got for free.
So guess I can't complain too much.

 

[JoeMAXX]

Traxxas has a chart to help with Fuel mixtures on their web site.

But this one was easier to find

http://www.xenonproject.com/tuning-your-nitro-gas-vehicles-engine-a-10.html

I personally live in an area where this chart does not help much. I am at high Altitude with low barametric pressure and no humidity then I run a High Nitro content. Tuning for my engines do not follow anything on this chart and I just tune each day for the best performance and make sure I have plenty of smoke out of the exhaust than attempt to keep my engine temps around 200 to 240 degrees.

 

[nikko508]

A good engine will cut out because it's too lean, not because of temps alone. If a well tuned engine is over-worked it will run well in the 300° range, but still be rich enough to stay running. It's also not wise to tell people what a good temp range is for any engine. The 3.3 works well between 200° and 260°, but it depends on fuel choice, ambient conditions, and tuning.
Tune for performance.

This is the best advice i heard so far. Temp's on an eng will very alot, if your going in a strait line the temp will read diffrent than it would if your going up a steep hill, even with the same tune. It all goes back to friction/energy/static start, and all that good stuff.
As long as you have a good tune with nice smoke from the pipe and a good idle dont worry to much about the temp's. The best rule to remembe is;
never tune for temp..

 

[saddlehorse]

Got her runnin good on lunch break till the truck stopped responding to radio .
Batt should had enough charge so not sure what goin on there.

Still ain't hittin the top speeds it was before but think part of that is where I ripped exhaust boot and had toclose up gap between headpipe and muffler.