ds 650 jetting
Nov 7, 2006 | 07:02 PM
#1
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Weekend Warrior
Joined: Nov 2006
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ds 650 jetting
Ok, I just put on a new exhaust. It is a hmf. I just got this and before I start taking out too many screws, could someone let me in on how to get to the carb to re-jet? I got a "jet kit" with the exhaust. It is a 185 "screw". I assume this is what they assume will be a good starting point. Any imput? I have put on a k and n air filter with no other mods. Thanks....
Nov 7, 2006 | 07:45 PM
#2
Elite Pro Rider
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ds 650 jetting
First off welcome to the forums.
Yes that would be a good starting point, what you have to do is take the bottom of the carb off, you may have to remove it to do this. There are two jets inside, remove the main jet which is what you have and install the new jet. This current jet should have the #165 or 170 stamped on it like your new jet has 185, swap only that jet put the float bowl back on and run it. You will deffinately notice a power differance after doing this, the k&n filter is also a very good mod but it needs an outerwear to keep the filter in good shape and it is also keeps out harmful elements, they are $10.99 from rockymountainatv.com.
Seth
Yes that would be a good starting point, what you have to do is take the bottom of the carb off, you may have to remove it to do this. There are two jets inside, remove the main jet which is what you have and install the new jet. This current jet should have the #165 or 170 stamped on it like your new jet has 185, swap only that jet put the float bowl back on and run it. You will deffinately notice a power differance after doing this, the k&n filter is also a very good mod but it needs an outerwear to keep the filter in good shape and it is also keeps out harmful elements, they are $10.99 from rockymountainatv.com.
Seth
Nov 7, 2006 | 07:47 PM
#3
Military Rider
My hobbies are NASCAR, Rockin' in the Free World, and riding my Sand Pigs at every available opportunity.
My hobbies are NASCAR, Rockin' in the Free World, and riding my Sand Pigs at every available opportunity.
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ds 650 jetting
You will also need to adjust your air/fuel mixture screw. What elevation are you riding at? That sounds like a big jet...
Welcome.
Welcome.
Nov 7, 2006 | 08:06 PM
#7
Military Rider
My hobbies are NASCAR, Rockin' in the Free World, and riding my Sand Pigs at every available opportunity.
My hobbies are NASCAR, Rockin' in the Free World, and riding my Sand Pigs at every available opportunity.
Joined: May 2005
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ds 650 jetting
Alright, another RAZORBACK on the forum. Even though I retired out here in the middle of the Mojave I still have a liitle bit of 'neck ingrained in me. My old stomping grounds having been Pine Bluff, Little Rock, and Memphis, I still have some of that Dirty South stirring sround in the blood stream from time to time. Anyway...
Like Seth said, you may be good with the stock. I would try one size up and play with the a/f screw some to see if you achieve a little better performance gain.
Go Hogs!
Like Seth said, you may be good with the stock. I would try one size up and play with the a/f screw some to see if you achieve a little better performance gain.
Go Hogs!
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Nov 7, 2006 | 08:11 PM
#9
Elite Pro Rider
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ds 650 jetting
Hey I'm the one that said that about the stock jet. I am so sad you'd think I was Seth.
Yes check your plug and make sure it looks good. If it is black your a little rich but should be good. Chocolate color you are perfect.
NO White if it is white change your jet.
Tracy
Yes check your plug and make sure it looks good. If it is black your a little rich but should be good. Chocolate color you are perfect.
NO White if it is white change your jet.
Tracy