Re:exhaust flames? (1 viewing) (1) Guest
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TOPIC: Re:exhaust flames?
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Re:exhaust flames? 5 Months, 1 Week ago
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silvasilv wrote:
rear plugs are both tan on top 
i also used a cigar to look for exhaust leaks at the top of the header but did not notice anything that unusual, what am i looking for exactly?
also something wierd was that my rear top spark plug was very very loose
If the plug was loose, you're losing compression which will tend to cause it to run rich...also depending on how loose, it could also suck air in through the loose spark plug causing it to be lean which might be why the rear plug was tan? Put new plugs in and tighten them and ride it and get new readings. I think you'll be surprised especially since there is rust on them. Maybe since the rear
Also...when you say the plug was very loose...on power stroke with a really loose plug maybe the bang was coming from the spark plug being loose??? I'm guessing.
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Re:exhaust flames? 5 Months, 1 Week ago
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rust was on both the front and the rear top plugs, not just the rear top
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Re:exhaust flames? 5 Months, 1 Week ago
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i will change the plugs and check back in a few days, thanks for the help so far guys
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Re:exhaust flames? 4 Months, 3 Weeks ago
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hey guys...so i changed plugs and rode a few miles and i am running a bit rich, but i also tightened up my exhaust when i did the plugs and the flames went away for about 30 minutes then came back, i did not put any threadlock on my pipes when i put them on, and now it seems that is the problem....any advice what i should use? id imagine red loctite since it gets so hot, but i feel like itll keep the pipes on but ill never get em off! i have heard antiseize also? any advice would be appreciated |
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Re:exhaust flames? 4 Months, 3 Weeks ago
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OK so why did it take you so long to change the plugs  For two weeks I've been wondering all this time what the heck was wrong with your bike. Yeah I know I need to get a life  . But if I'm a work and I see messages from the forum come up...I'm surly going to open them cause they're a lot more fun than work.
Red Loctite should be ok. Or you could safety wire them...that's what we did on exhaust bolts on the endurance race cars...they never come loose. But you have to drill the bolt and then wire them and if you don't have the stuff it's a bit more hassle than just using Loctite. |
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Re:exhaust flames? 4 Months, 3 Weeks ago
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No on the red loctite on the header nuts ... use antiseize. Firstly loctite will not work at such high temps.
You need to really determine where that exhaust leak is coming from. If it's from a joint try using hi-temp RTV.
Doc
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Re:exhaust flames? 4 Months, 3 Weeks ago
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DocShadow wrote:
No on the red loctite on the header nuts ... use antiseize. Firstly loctite will not work at such high temps.
You need to really determine where that exhaust leak is coming from. If it's from a joint try using hi-temp RTV.
Doc
 Sorry for the bad advice on the red loctite, I used blue before and not had issues....Doc what's antiseize used for?
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Re:exhaust flames? 4 Months, 3 Weeks ago
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Exactly what the name suggests. 
It's good to use on threads where the two materials are different, such as spark plugs and aluminum heads.
It's also good to use on exhaust flange bolts, or other areas where you don't what galling or corrosion. I use the graphite one .. it looks dark grey.
Doc |
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Re:exhaust flames? 4 Months, 3 Weeks ago
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i changed the plugs right away, but i just wanted to ride it a little to get a good reading on the plugs...the leak is happening right where the header bolts up...the front pipe was pretty much barely hanging on, and the rear pipe was a little loose, tightened them up and rode and the sound went away and by the time i got home the sound was back and sure enough the bolts were a little loose too, so it seems to just be a matter of getting those nuts to stay on... will the antiseize help to keep the header bolts on? or just stop them from freezing on
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Re:exhaust flames? 4 Months, 3 Weeks ago
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If the header nuts were tightened too tight at one time, then the flange may be bent. Normally the flange presses against the nut and prevents it from loosening. Check out that the flanges are true. If they are then you could use lock washers to stop the bolt from coming undone.
Antiseize is as it's name suggests.
Doc
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