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 04-25-2004, 03:04 PM   #1
Tech Elite
ottoman's Avatar
R/C Tech Charter Subscriber
Join Date: Oct 2001
Location: wisconsin
Posts: 2,748
Trader Rating: 12 (100%+)
Default Spitting fuel out of carb

Last edited by ottoman; 04-29-2004 at 08:22 AM.
ottoman is offline   Reply With Quote
Old 04-25-2004, 04:45 PM   #2
Tech Elite
EdwardN's Avatar
Join Date: May 2003
Location: SoCal
Posts: 2,144
Trader Rating: 1 (100%+)
Default Re: Spitting fuel out of carb

Originally posted by ottoman
I am having a problem with my nitro car that I can’t seem to solve. I experience it all last summer and now again while I was breaking in my new motor for this season. Here’s what happens…
When I start the motor cold… first time of the day or before every heat… the motor starts fine but it idles much slower than I have it set for. If I give it any throttle it dies. If I let it idle for 30 seconds it (usually) suddenly jumps back up to the correct idle speed and will accept throttle. Last season I thought it was a clutch problem… dragging some until it ran a few seconds but I never could find anything wrong with the clutch.
Today I was finishing breaking in my new motor. I had the engine set back away from the spur gears so they were not engaged while I ran in the first few tanks. Everything was going well until I let it cool and filled the tank and restarted it… it idled slower than before I shut it down and it wouldn’t take any throttle without dying… then suddenly it picked up idle speed and would take throttle. I tried this with every tank and it’s the same… I did notice that when its running slow it spits fuel out of the carb and if I crack the throttle a few thousands of an inch it blows out more fuel and continues until it just dies . Once the idle speed returns to normal no fuel spits out and everything runs great.
I have played with carb settings. I replaced the lines and fuel tank I just went through the carb… checked orings etc but I can’t find anything wrong. The first engine was a Nova Mega .12 and this one is a MR12.
Any ideas?
Tooo rich on the bottom end , way too rich. Lean it on the bottom and then work on top end.
DISCLAIMER: Since 90% of my posts may be BS, and since my posts may be either insanely idiotic, incoherent, and/or not even close to a rational thought, please accord my posts no more than 10% of credibility.
EdwardN is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel not getting to the carb Mann2006 Nitro On-Road 40 12-20-2006 06:46 PM
Hell Fire spitting fuel out of exhaust ghostdogg R/C Tech Site Forum 3 11-01-2006 07:54 PM
LST Spitting Fuel Shannador Rookie Zone 4 02-19-2006 06:48 AM
Too much fuel or Oil spitting? Crowella Onroad Nitro Engine Zone 5 12-16-2005 11:30 PM
fuel wont go into carb tiger266 Nitro On-Road 9 07-27-2005 03:23 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 10:25 PM.

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

SEO by vBSEO 3.5.0