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Old 10-23-2010, 01:16 PM   #1
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Default newbie in desperate need of help!!!

hi guys nice to mmet you all, im very new to this and bought myself a nitro car this week and have some problems with it, it generally starts after about 5-6 pulls but it just seems to rev its nuts ond shoot off uncontrollably, and sometimes it isnt too bad, also it cuts out and is a pain to start and when i hit reverse it cuts out completley, any advice ,ideas etc? i havent a clue about these cars and my user manual thing is very unclear and mainly in foreign, please help lol,the car is a promax rs??
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Old 10-23-2010, 05:28 PM   #2
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http://www.youtube.com/watch?v=5XruoYcm4W4

http://www.youtube.com/watch?v=er7Cl...eature=related


this should help you and set all you fuel setting back to stock
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Old 10-23-2010, 10:36 PM   #3
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Quote:
Originally Posted by lewisdale View Post
hi guys nice to mmet you all, im very new to this and bought myself a nitro car this week and have some problems with it, it generally starts after about 5-6 pulls but it just seems to rev its nuts ond shoot off uncontrollably, and sometimes it isnt too bad, also it cuts out and is a pain to start and when i hit reverse it cuts out completley, any advice ,ideas etc? i havent a clue about these cars and my user manual thing is very unclear and mainly in foreign, please help lol,the car is a promax rs??
Quote:
Originally Posted by lewisdale View Post
hi guys nice to mmet you all, im very new to this and bought myself a nitro car this week and have some problems with it, it generally starts after about 5-6 pulls but it just seems to rev its nuts ond shoot off uncontrollably, and sometimes it isnt too bad, also it cuts out and is a pain to start and when i hit reverse it cuts out completley, any advice ,ideas etc? i havent a clue about these cars and my user manual thing is very unclear and mainly in foreign, please help lol,the car is a promax rs??
It sounds like a faux idle here. Simply put you are allowing in too much air thru the throttle at idle and the bottom needle is rich hence dropping the idle or the bottom needle is too lean and the top needle too rich which means it floods.

If the car idles really high when you back off the throttle after a long straight then there's too much throttle gap.

Quick method..
1) With engine off and radio off, Set throttle gap to approx 1mm gap with idle screw, then turn on radio and BRAKE ensuring the throttle doesnt close further and adjust servo linkages if bad.

2) Unwind the top needle 2 turns to make the top speed "very" rich, this ensures you have fuel pressure at idle. Ensure there arent leaks in fuel lines etc allowing air into the system

3) Remove glow plug and turn over engine to see if fuel squirts out and free engine from flooding, this will tell you whether you are flooding. Inspect glow plug and ensure it's working and ok. Install glow plug

4) WITHOUT USING THROTTLE, ie at idle, try starting the car. If it idles very high find the bottom needle screw and wind it outwards 1/8 turn each time(counterclockwise) to richen up the mixture at idle, this should lower the idle, if it stalls REPEAT to STEP3, you're flooded. If it wont start, REPEAT STEP 3 LEAN or turn in the bottom needle screw 1/8 turn each time until it starts.

Now if you manage to find a happy idle, it's very likely that when you apply any throttle you'll flood because we richened the top needle. REPEAT STEP 3.

5) Begin very gently pressing the throttle, and adjusting the top needle 1/8 each time to prevent it from flooding the engine until you feel the engine responding happily.

6) Put your shell on, find a large area to tuned and gently throttle around until the engine warms up and continue to tune the top needle inwards until you can achieve full throttle Without having to use STEP 3.

Your car should be blowing a small stream of smoke at full throttle and wind out happily. If when you back off the IDLE REMAINS HIGH then there's too much of an IDLE gap and you need to reduce the IDLE and LEAN Clockwise the bottom needle a 1/8 at a time until you find the happy median.

Good luck

NOTE: If nothing changes, then something else is the problem. If it's new, it also needs a good running in process... I wrote this for newbies a while back ...

http://www.beachmumsracing.org.au/fyi/santalovesnitro/

h
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