• Welcome to RCTalk! 🚀

    Join the #1 RC community where hobbyists connect, share, and get expert advice on RC cars, trucks, boats, drones, and more!

    • Friendly & passionate RC enthusiasts
    • RC tips & troubleshooting
    • Buy, sell & trade RC gear
    • Share builds & upgrades

factory settings????

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.

icunvmytmaxx

RCTalk Talkaholic
Messages
426
Reaction score
0
Points
0
Location
northern maine
RC Driving Style
  1. Bashing
  2. Racing
Anyone out there running an OS .15 cv-x? I just bought one and I pulled n pulled this thing, and its not starting. Need some info on factory settings please. Thanx in advance....Kev
 
the factory setting are the same for most motors, low speed needle flush with the part surrounding it, high speed needle tighten until it stops and then loosen it 3 full turns.

if you just bought it I hope you didnt make any adjustments to it at all. its tuned the way it is for a reason and should NOT bet messed with otherwise you can break it in wrong and chance blowing the motor I suggest maybe going 4 turns out instead of 3 if it isnt broken in yet. If its not starting check to see if its getting any fuel. the lines may be gelled up and need replacing and if its broken in then it may be too lean/rich depending on what its doing

if its flooding then lean it out 1/4 of a turn if its not getting enough fuel, its too lean richen it
 
Last edited:
Anyone out there running an OS .15 cv-x? I just bought one and I pulled n pulled this thing, and its not starting. Need some info on factory settings please. Thanx in advance....Kev

the factory setting are the same for most motors, low speed needle flush with the part surrounding it, high speed needle tighten until it stops and then loosen it 3 full turns.

if you just bought it I hope you didnt make any adjustments to it at all. its tuned the way it is for a reason and should NOT bet messed with otherwise you can break it in wrong and chance blowing the motor I suggest maybe going 4 turns out instead of 3 if it isnt broken in yet. If its not starting check to see if its getting any fuel. the lines may be gelled up and need replacing and if its broken in then it may be too lean/rich depending on what its doingmo

if its flooding then lean it out 1/4 of a turn if its not getting enough fuel, its too lean richen it
I bought it used and its been broken in. Trust me when I say I don't mess with it too much until I find out how it ticks. My 2.5r engine runs like a champ. Just don't know too much about the OS engines. It's all about learning. Thanx for the help!!! One more question....I noticed when I primed it. (covered the exhaust and pulled it, obviously, lol), the fuel wasn't traveling through the line. What would cause this?
 
Last edited:
gelled up fuel lines. try taking the fuel line off of the exhaust pipe and blow into it until you see fuel go into the carb or you could replace your fuel lines
 
the factory setting are the same for most motors, low speed needle flush with the part surrounding it, high speed needle tighten until it stops and then loosen it 3 full turns.

if you just bought it I hope you didnt make any adjustments to it at all. its tuned the way it is for a reason and should NOT bet messed with otherwise you can break it in wrong and chance blowing the motor I suggest maybe going 4 turns out instead of 3 if it isnt broken in yet. If its not starting check to see if its getting any fuel. the lines may be gelled up and need replacing and if its broken in then it may be too lean/rich depending on what its doing

if its flooding then lean it out 1/4 of a turn if its not getting enough fuel, its too lean richen it

The factory settings are definitely not mostly the same between engines and brands. Information like this is what gets people in trouble. Find out what the factory settings are for your particular engine. And if it doesn't start where it was set when you received it, start an hour lean of the factory settings.
 
Slide carb or rotary carb? They differ quite a bit on the LSN.



LSN - 10C Slide
First rotate the Mixture Control
Valve until its slotted head is
flush with the carburetor body.
Then screw the valve in exactly
2.5 turn.
This is the standard position.

LSN - 10E-R Rotary
First rotate the Mixture Control
Valve until its slotted head is
flush with the carburetor body.
Then screw the valve in
exactly 0.5 turn.
This is the standard position.

It appears the HSN is the same for both:
HSN
Turn the needle-valve clockwise slowly and gently until it
stops. This is the fully closed position.Do not use
force to turn the needle-valve beyond this point.

Open the Needle-Valve 2 turns from the fully closed
position.


Idle also varies from .3mm-.5mm for the slide to 1mm for the rotary.

OS also doesn't like making it easy, you have to read a decent chunk of the manual to find the settings:
http://manuals.hobbico.com/osm/15cv-cv-x-manual.pdf

The manual has diagrams on what they are talking about in reference to "the body of the carb".
 
Last edited:
Slide carb or rotary carb? They differ quite a bit on the LSN.



LSN - 10C Slide
First rotate the Mixture Control
Valve until its slotted head is
flush with the carburetor body.
Then screw the valve in exactly
2.5 turn.
This is the standard position.

LSN - 10E-R Rotary
First rotate the Mixture Control
Valve until its slotted head is
flush with the carburetor body.
Then screw the valve in
exactly 0.5 turn.
This is the standard position.

It appears the HSN is the same for both:
HSN
Turn the needle-valve clockwise slowly and gently until it
stops. This is the fully closed position.Do not use
force to turn the needle-valve beyond this point.

Open the Needle-Valve 2 turns from the fully closed
position.


Idle also varies from .3mm-.5mm for the slide to 1mm for the rotary.

OS also doesn't like making it easy, you have to read a decent chunk of the manual to find the settings:
http://manuals.hobbico.com/osm/15cv-cv-x-manual.pdf

The manual has diagrams on what they are talking about in reference to "the body of the carb".
its a rotary carb olds.....thanx everyone for your responses. It helps a lot. Now to go mess with it. Thanx again...;)
 
Back
Top