Magna Owners Of Texas

Public Forums => The Garage => Topic started by: Damn Yankee on September 17, 2009, 06:00:31 AM

Title: Stock Swap
Post by: Damn Yankee on September 17, 2009, 06:00:31 AM
Just checking...

I understand the carbs are typically re-jetted when going from stock pipes to aftermarket...but what if it's the other way around? Will I need to retune/adjust the carbs to make the stocks work correctly?

Also considering a K&N air filter...same question. Thanks!
Title: Re: Stock Swap
Post by: TLRam1 on September 17, 2009, 11:42:02 PM
Quote from: Damn Yankee on September 17, 2009, 06:00:31 AM
Just checking...

I understand the carbs are typically re-jetted when going from stock pipes to aftermarket...but what if it's the other way around? Will I need to retune/adjust the carbs to make the stocks work correctly?

Also considering a K&N air filter...same question. Thanks!


Not unnecessarily, depends on what you have in there now. The bikes come lean out of the factory even with stock pipes and could use a carb rework.

How do you know the carbs have been jetted?

Do you know what jetting you have now?
Title: Re: Stock Swap
Post by: gargoyleddriver on September 19, 2009, 11:47:45 AM
Ive got stock exaust with mine jetted. So you should be alright. Damn Yankee Was it you that was trying to trade cobras for stocks in  michigan?
Title: Re: Stock Swap
Post by: Damn Yankee on September 19, 2009, 05:37:42 PM
Sorry, TL...I really have no idea if the carbs were re-jetted for these particular Cobras...I'm working on the pretense that they were based on what I am to understand about switching from stock to aftermarket. Unfortunately, I also have no way of telling if the carbs were re-jetted unless there are tell-tale signs/symptoms...any knowledge of such would be welcome, too. As with a lot of things over the Internet, there's no shortage of conflicting information.

Gargoyle, that would have been me.  I was able to hook up with a fellow Magna-maniac in the area and we swapped pipes today. But we didn't think we needed to swap clamps, too. It turns out they are specific to the pipes--D'oh! So we'll hook up again in a couple of days to finish the transaction. Good to hear any possible re-jetting may not necessarily be a bad thing in this situation. From what I have also read, I'll need to pull a plug after a tank of gas to see what color it is. The never-ending education of the motorcycle owner...

BTW, I forgot to look closer for your basics...are you in Michigan/the Detroit area?