carb adjustments 2000 Trailblazer
#1
I went riding this past weekend and noticed that my quad is not running real good. After it is warmed up, while in neutral, if you press the throttle all the way in, the engine seems to bog for a second and then picks up. Is there adjustments that can be made to the carb to take care of this, and if so what?
The last thing that I did was slightly modify the airbox. I never rejet after doing this, but I did have a bigger jet installed prior to this. This is the one that came with my RCR stage 1 performance kit.
I am trying to get this running right for the weekend. I was gonna just take it to the dealer, but there is a 3 week wait before he'll even touch it. I gotta ride now!
The last thing that I did was slightly modify the airbox. I never rejet after doing this, but I did have a bigger jet installed prior to this. This is the one that came with my RCR stage 1 performance kit.
I am trying to get this running right for the weekend. I was gonna just take it to the dealer, but there is a 3 week wait before he'll even touch it. I gotta ride now!
#2
Could be a lean issue. Cover the holes in your air box with duct tape and try it then. If helps, your lean. It's off your idle to needle circuit, drop the clip on your needle one notice - retry till fixed. This can be done both ways, Raising it leans it out and dropping it richens it.
I would also be checking the main jet due to the air box mods / seanson change. This will blow your engine, the needle being alittle lean won't.
Good Luck
I would also be checking the main jet due to the air box mods / seanson change. This will blow your engine, the needle being alittle lean won't.
Good Luck
#3
I had the same problem only mine was due to a dirty pilot jet. If the bog is just off idle then I would first try adjusting the air screw. If the bog is after 1/4 throttle raise the needle (drop clip) a notch. I'm in Florida (practically at sea level) and keep my needle clip at the 4th position from the top (one below center position).
If that does not fix it, take carb off and clean. If you have varnish deposits you will see it. I had a visible buildup on the tip if the needle and the bowl bottom due to storing without running stabil thru it.
If that does not fix it, take carb off and clean. If you have varnish deposits you will see it. I had a visible buildup on the tip if the needle and the bowl bottom due to storing without running stabil thru it.
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