R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road > Onroad Nitro Engine Zone

Thread Tools Search this Thread
Old 08-24-2010, 08:39 PM   #1
Tech Addict
Join Date: Jan 2007
Posts: 660
Default first thing to look at when an engine doesn't start easily?

What is the first thing to check if an engine doesn't start easily? Needles are at factory setting or as close as I can get them. Not flooded, glow plug is good, new fuel (Byron's 20%), and fuel lines are all good with no air leaks. Carb is seated properly etc I already checked.

Is it possible that the idle adjustment screw is set too low and the engine is not able to idle up once it gets started up? How do I check for that if the engine won't start in the first place?

It's very hard to adjust needles and troubleshoot them if the thing won't even start for a second so I can hear it lol.
Dredd is offline   Reply With Quote
Old 08-25-2010, 12:42 AM   #2
Tech Master
MikaR's Avatar
Join Date: Oct 2006
Posts: 1,568

Which engine?

Pullstart or not? If no pullstart make sure the starter box turns the engine enough, in order to start it requires a certain amount of rpm.

Also make sure it gets enough fuel to fire up, for example you can blow to the PRESSURE line (by removing it from the pipe end) to get the fuel going to the carb before starting - but be careful not to get any fuel into your mouth (never happened to me but please be careful because nitro fuel is lethal stuff).

Most common error is that the glow plug igniter is just not loaded enough; it usually requires charging overnight when using the charger that comes along in order to be effective.
MikaR is offline   Reply With Quote
Old 08-25-2010, 10:06 AM   #3
Tech Addict
Join Date: Jan 2007
Posts: 660

It was simply a wrong needle setting for idle. Tried it this morning and it fired up with a few small adjustments to the idle screw. It is my friend's car I was just helping with. Some type of older novarossi engine. Not sure of the model. Seems good now. I guess he or perhaps even me, adjusted the idle too low. Had to throttle up a bit at start and raise the idle speed a bit. Now it fires up immediately as it should.

Gotta love fixing things on your own and having that "ahh ha!!" moment.
Dredd is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
$$$ Person to make the 50K post wins $25.00 $$$ racer1812 Chat Lounge 51822 12-01-2017 08:28 AM
Houstons Engine Service H.E.S. houston Offroad Nitro Engine Forum 8821 06-17-2017 01:29 PM
REEDY .21 Nitro Engine Kevin Boyle Offroad Nitro Engine Forum 1359 10-08-2014 02:19 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

All times are GMT -7. It is currently 06:09 AM.

Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net