CV rejetting question.
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Banned
Joined: Sep 2008
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From: In a house
CV rejetting question.
Yes, this is a tech question so hope no one is offended
.
Recently installed an Andrews EV46 cam into an 94 EVO. All went well and now it's time to deal wit the carb. I like the CV carb and wish to rejet it. Am confused about ALL the possible mods that one can perform with this carb. I bought a recalibration kit which includes jets, needles, drill bits, a new diaphram spring and my question is: "Is all this really necessary"? Back in the day, you popped in a new jets and off you go.
Have taken in a variety if opinions. Some state "stay away from the recalibration kit". Others swear by it.
Was wondering what some of you have done in the past.
Suppose a little more info would help. It's a 94 stock EVO. Replaced the cam (as mentioned), installed new Rheinhart exhaust (true duals). Upgraded the coil and wires. Thats it in a nut shell. Was going to have the heads modified but wanted to see how this set up works first, plus it's the beginning of the riding season and I am impatient.
All responses will be appreciated.
Thanks again. Great site!
.Recently installed an Andrews EV46 cam into an 94 EVO. All went well and now it's time to deal wit the carb. I like the CV carb and wish to rejet it. Am confused about ALL the possible mods that one can perform with this carb. I bought a recalibration kit which includes jets, needles, drill bits, a new diaphram spring and my question is: "Is all this really necessary"? Back in the day, you popped in a new jets and off you go.
Have taken in a variety if opinions. Some state "stay away from the recalibration kit". Others swear by it.
Was wondering what some of you have done in the past.
Suppose a little more info would help. It's a 94 stock EVO. Replaced the cam (as mentioned), installed new Rheinhart exhaust (true duals). Upgraded the coil and wires. Thats it in a nut shell. Was going to have the heads modified but wanted to see how this set up works first, plus it's the beginning of the riding season and I am impatient.
All responses will be appreciated.
Thanks again. Great site!
Cruiser
Joined: Jan 2009
Posts: 147
Likes: 4
From: Chippewa Falls, WI
I've always been able to modify a cv with a couple of drills and a selection of main jets. Never bought the "kits".
Here's a link to a great site with well-explained mods that work in the real world.
http://www.nightrider.com/biketech/hd_cv_mods.htm
Here's a link to a great site with well-explained mods that work in the real world.
http://www.nightrider.com/biketech/hd_cv_mods.htm
Seasoned HDF Member
Joined: Aug 2007
Posts: 21,744
Likes: 17,609
From: Driftless Area
I have the equivalent cam from Andrews, .050" shaved heads. Change the spring, and needle with the clip at the third groove. It's not hard, but take care not to puncture the diaphram when you put it back in. 180 main jet works for me. I think the midrange jet is a 46.
Outstanding HDF Member
Joined: Aug 2007
Posts: 2,874
Likes: 8
From: Earth
Yes, this is a tech question so hope no one is offended.
Recently installed an Andrews EV46 cam into an 94 EVO. All went well and now it's time to deal wit the carb. I like the CV carb and wish to rejet it. Am confused about ALL the possible mods that one can perform with this carb. I bought a recalibration kit which includes jets, needles, drill bits, a new diaphram spring and my question is: "Is all this really necessary"? Back in the day, you popped in a new jets and off you go.
Have taken in a variety if opinions. Some state "stay away from the recalibration kit". Others swear by it.
Was wondering what some of you have done in the past.
Suppose a little more info would help. It's a 94 stock EVO. Replaced the cam (as mentioned), installed new Rheinhart exhaust (true duals). Upgraded the coil and wires. Thats it in a nut shell. Was going to have the heads modified but wanted to see how this set up works first, plus it's the beginning of the riding season and I am impatient.
All responses will be appreciated.
Thanks again. Great site!
.Recently installed an Andrews EV46 cam into an 94 EVO. All went well and now it's time to deal wit the carb. I like the CV carb and wish to rejet it. Am confused about ALL the possible mods that one can perform with this carb. I bought a recalibration kit which includes jets, needles, drill bits, a new diaphram spring and my question is: "Is all this really necessary"? Back in the day, you popped in a new jets and off you go.
Have taken in a variety if opinions. Some state "stay away from the recalibration kit". Others swear by it.
Was wondering what some of you have done in the past.
Suppose a little more info would help. It's a 94 stock EVO. Replaced the cam (as mentioned), installed new Rheinhart exhaust (true duals). Upgraded the coil and wires. Thats it in a nut shell. Was going to have the heads modified but wanted to see how this set up works first, plus it's the beginning of the riding season and I am impatient.
All responses will be appreciated.
Thanks again. Great site!
Look at it this way, you bought the kit and are taking the carb apart. Why not put the new stuff in. Follow the instructions and go for it. Sure can't hurt and it beats pulling it apart later when you could have done it all at once.
Supporter
Joined: Jan 2007
Posts: 15,788
Likes: 5,636
From: along the shore of Mishigami
+1 on the nightrider site, I'd put the kit in as a last resort. Buy a few sets of champion plugs (RN12YC) I believe that's the plug for evo's. Make your adjustments, record them, read the plugs after 50 -100 miles, prior to installing the plugs use a little bit of anti -seize if they are going to be removed and installed a few times. Let us know how it worked out.
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