Stage one

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Nov 9, 2014 | 07:42 PM

Pete3323

Thread Starter

Road Master

Joined: Nov 2014

Posts: 777

Likes: 36

From: Woodland Hills, CA

Stage one

I'm considering putting the Ness big sucker air filter and a pair of Screamin Eagle mufflers on my stock 2000 Heritage. Will the carb need to b adjusted with these mods? Has anyone else done this mod and if so, what kind of improvements were realized? Thanks!

PS..how much louder are the SE mufflers? Not looking for LOUD!

Nov 9, 2014 | 10:07 PM

jcsshane

Tourer

Joined: Feb 2014

Posts: 406

Likes: 5

From: NW Suburbs Chicago

I've yet to see any difference {performance} between any the Stage One breathers...and the Arlen Ness is one of the Good ones. Yes, you will need to re-jet the carb. Yes, you should feel a definite difference. Cooler engine - Better throttle response - maybe better mileage and slight increase in HP and Torque. I am also of the opinion that the 88B motor responds really well to Stage One.

Loud is a very subjective term. I never thought the Screaming Eagle pipes where over the top, but would not put them in the middle of the road on the Loud meter.

And by the way - All of this is just my opinion from results I've had over the years.

Nov 10, 2014 | 07:24 AM

martin10

Road Warrior

Joined: Jul 2014

Posts: 1,584

Likes: 520

From: VA

Quote:

Originally Posted by Pete3323

Word of advice. Whatever you do dont buy an aftermarket jet kit (like a dynojet) for your carb. All of them that I have ever used are way too rich and just waste a lot of fuel. And don't drill a larger hole in the slide like some people recommend or use a weaker slide spring. I have tried all this stuff over the years and it can hurt more than it helps. All you need is a 45 slow jet, a 190 main jet and put a 25 thousandths thick washer under the needle. Your bike may already have a 190 main jet and that is large enough for what you are doing. You need to remove the plug to access the screw for the slow jet adjustment. Back it out 1/4 turn. If you find the bike coughs when you suddenly get on or let off the throttle back it out another 1/8 of a turn at a time until it goes away. I am sure you can find "you tube" videos that show you how to do all this if you want to do it yourself. The most important part is to be careful not to pinch the slide diaphram when you put the top back on the carb. I have tuned dozens of CV carbs over the years and have not found any that didn't work well with these simple mods.

Nov 10, 2014 | 08:43 AM