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Message started by sparkett on 12/22/06 at 04:44:34

Title: hot pipe
Post by sparkett on 12/22/06 at 04:44:34

Question, took her for a quick spin to warm up to tweek the carb( still running rich). The pipe was glowing red inside, looked like a brake light in the pipe from the back. took 5 min and it just dimmed down and went out like a campfire.  now what?

Title: Re: hot pipe
Post by Brewbrother on 12/22/06 at 06:19:02


sparkett wrote:
Question, took her for a quick spin to warm up to tweek the carb( still running rich). The pipe was glowing red inside, looked like a brake light in the pipe from the back. took 5 min and it just dimmed down and went out like a campfire.  now what?


In my experience its a lean fuel condition. Others may be able to elaborate more. I'd start by adjusting the air fuel screw out. Do you know how many turns you are currently out??

Title: Re: hot pipe
Post by sparkett on 12/22/06 at 16:27:29

I was 2 1/2 out keep turning it in but still black smoke, if i rich it up it runs ratty. Think she has a drinking problem ;Dbut she feels good so i guess next its a rejet the whole carb ::)

Title: Re: hot pipe
Post by Brewbrother on 12/22/06 at 17:04:19


sparkett wrote:
I was 2 1/2 out keep turning it in but still black smoke, if i rich it up it runs ratty. Think she has a drinking problem ;Dbut she feels good so i guess next its a rejet the whole carb ::)

Im in the panhandle and run a 155 main and a 55 pilot with no spacer. If you have not rejetted it will always be lean. Its not a difficult process and I did mine without removing the carb.

Title: Re: hot pipe
Post by TVR on 12/22/06 at 17:49:54

I have that same setup, except I have about a half spacer (two washers). Still get an occasional backfire between gears. I wonder if I should remove all of the spacer?

Title: Re: hot pipe
Post by georgekathe on 12/22/06 at 20:29:35

don't forget altitude to take into consideration with rejetting - I'm @ 4,500 feet with the mods as can see below. still have odd bang on deceleration sometimes but have not tweaked air/fuel screw yet. what I'm saying is besides the alt. here what might work for one person may not work on another's bike with their muffler, etc.

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