Bombardier DS50 carb. help needed - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 04-20-2005, 08:47 AM
stumpper
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Bombardier DS50 carb. help needed


Kids quad 2004 Bombadier ds50 -- at steady throttle position (rpm) acts like atv is running out of fuel -- boggs down. Have to pump the thumb throttle to keep it running - has the electric choke. I see idle screw, where is the air/fuel screw?? And how many turns out should they be set at? Any help appreciated. thanks [img]/ubbthreads/images/graemlins/wall.gif[/img]
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post #2 of (permalink) Old 05-14-2005, 12:40 AM
 
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Re: Bombardier DS50 carb. help needed

[ QUOTE ]

Kids quad 2004 Bombadier ds50 -- at steady throttle position (rpm) acts like atv is running out of fuel -- boggs down. Have to pump the thumb throttle to keep it running - has the electric choke. I see idle screw, where is the air/fuel screw?? And how many turns out should they be set at? Any help appreciated. thanks [img]/ubbthreads/images/graemlins/wall.gif[/img]

[/ QUOTE ]

Carb screw locations are a secret!!!! Just kidding....


Sounds like improper jetted carb (Main Jet) or its float level needle (aka: adjustment tab) is improperly set. Don't know for sure until Spark Plug readings are performed.


If your DS-50 is like most mini-quad 2 stroke carbs, there should be 2 screws on the outside (one is a idle speed screw and the other is a "need a very small screw driver" Air Mixture screw. The Pilot and Main Jet are "fixed" plumbing that are inside the Carb - within in its bowl area. And the notches (aka: Clip level) on its Throttle Needle is inside the carb as well.


To learn more about carbs & jetting, surf:

http://www.motocross.com/motoprof/mo...1/carb101.html


If you are uncomfortable with this stuff, I would recommend you partner with a dealer or a carb techie friend you fully trust. An improperly tuned carb "can" blow a hole in its piston or create ring melt-downs. But a properly set cab can turn your mini into a rocket. RE: Flies without any burping in the upper RPMs.


Hope this helps....

.
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post #3 of (permalink) Old 06-01-2005, 03:30 PM
stumpper
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Re: Bombardier DS50 carb. help needed

thanks I've located the air screw -- front right side- if sitting on the machine. Approx 1/2 turn out is the correct setting for my area. Runs GREAT thanks.
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