R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Thread Tools Search this Thread
Old 03-08-2009, 12:08 PM   #1
Tech Rookie
Join Date: Mar 2009
Posts: 3
Default stalls when I brake

I'm new to the rc thing and picked up a savage xl didnt like the radio so I bought a futaba 3pm installed it and when I brake it stalls any pinters on setup? thanks Todd
baddog is offline   Reply With Quote
Old 03-08-2009, 12:12 PM   #2
Tech Fanatic
Join Date: Nov 2008
Posts: 777
Trader Rating: 6 (100%+)

you need to set your epa's correctly. When the car is not running try to set your brak epa to about 2 mm open when full brak is applied.

EPA mean end point adjustment.
rgrassey@me.com is offline   Reply With Quote
Old 03-08-2009, 12:12 PM   #3
Tech Apprentice
Join Date: Feb 2009
Posts: 50

Check your idel adjustments, it might be closed to much.
armymedic is offline   Reply With Quote
Old 03-08-2009, 12:15 PM   #4
Tech Master
Perry's Avatar
Join Date: Jul 2006
Location: Grande Prairie AB Canada
Posts: 1,312
Trader Rating: 20 (100%+)
Send a message via MSN to Perry

If none of that works pull off your clutchbell and check to see if the clutch is sticking or for a broken spring.
Way too many planes.
Perry is offline   Reply With Quote
Old 03-08-2009, 01:03 PM   #5
Tech Fanatic
itsshemp's Avatar
Join Date: Dec 2007
Location: Hemet Ca
Posts: 868
Trader Rating: 9 (100%+)

sounds like your slip collar on your throttle linkage is whats keeping your engine idling. When you hit the brake, it closes the throttle all the way, and shuts off. Make sure that there is a little bit of clearance between the slip collar, and the linkage where it connects to the servo. If you have a small gap there, you will be using the idle screw as was intended to be used, and your engine should not cut out.

If this is the problem, you will most likely have to turn up the idle screw now that you are actually using it.

Hope this helps.
Danny Flores
Team Driver for:
Hot Bodies/HPI - Track Star Services - Triton R/C - Alpha Plus Engines - Radiopost - Hemet Competition Raceway (HCR) - Hemet R/C (R.I.P)
itsshemp is offline   Reply With Quote
Old 03-08-2009, 05:37 PM   #6
Tech Master
floss's Avatar
Join Date: Oct 2004
Location: Pittsworth, Qld
Posts: 1,141
Trader Rating: 32 (100%+)

1st things first , how much fuel has been run through the engine, don't chase a tune until you have put at least a 1ltr of fuel through the engine...while running in your engine stay off the brake , dont worry you will be happy
Model Motorsports
floss is offline   Reply With Quote
Old 03-08-2009, 06:00 PM   #7
Tech Elite
xlgraphicspro's Avatar
Join Date: Dec 2004
Location: Omaha Nebraska
Posts: 2,052
Trader Rating: 3 (100%+)

First off, your Idle screw is not set right. start your engine, and with your hand push the throttle linkage so the carb is shut and your breaks are applied. if it dies, then its the idle screw. turn the idle screw until you can see a 1mm gap in your carburator when the air filter is off. Start the engine again, and with your hand push the throttle linkage so the carb is shut and your breaks are applied. if it dies again, increase the idle screw slightly. you may have to back off the low end needle, because your idle might be quicker than you want.

Then adjust your endpoints correctly!
TeamXray RCAmerica Hudy Xlgraphicspro Paint/ Impulse-Rc Clutch shoes.
Xray XB 808 O.S. Speed Or Ninja JX
xlgraphicspro is offline   Reply With Quote
Old 03-09-2009, 06:46 AM   #8
Tech Elite
GregH's Avatar
Join Date: Aug 2001
Location: Pennsylvania
Posts: 2,306
Send a message via AIM to GregH

Always set your EPA on the radio FIRST. Then check the idle gap. If they are both set correctly, you'll need to make sure the carb needle settings are correct. After that, look at the clutch for worn or broken springs.
GregH is offline   Reply With Quote

Similar Threads
Thread Thread Starter Forum Replies Last Post
"the tuning bible" houston Onroad Nitro Engine Zone 311 04-25-2017 12:18 AM
Engine Tuning 101 (General Tuning) Kemorc Onroad Nitro Engine Zone 41 11-19-2007 07:04 PM
help with brake in TomiRC Onroad Nitro Engine Zone 14 02-16-2006 10:02 AM
the Happy Place rcrookie Rookie Zone 8 02-12-2006 11:12 AM
car stalls when i brake lachlan90 Australian Racing 9 04-11-2005 04:36 AM

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 04:25 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net