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- - Glowing exhaust pipe. (http://forums.sv650.org/showthread.php?t=147597)

brettsv650

03-03-10 02:40 PM

Glowing exhaust pipe.

hey i just got a sv650s 2001 and when i started it up the other day i had the choke on to warm it up and went in side to grab my helmet when i came back my front header was glowing red what the any help plz!!!!!!!!!:why:

Neeja

03-03-10 06:38 PM

Re: Glowing exhaust pipe.

How long were you inside for? If you were inside getting your helmet for a long time, it's probably just because you've got the engine running at about 3krpm with zero airflow over the headers. Otherwise you've got a lean condition on your engine, and run the risk of burning valves. Bad times.

ophic

03-03-10 06:47 PM

Re: Glowing exhaust pipe.

Bikes are known to do this in the dark at idle with the choke on.

-Ralph-

03-03-10 08:59 PM

Re: Glowing exhaust pipe.

Quote:

Originally Posted by ophic (Post 2200449)

Bikes are known to do this in the dark at idle with the choke on.

Do they get hotter when it's dark? ;)

Milky Bar Kid

03-03-10 09:15 PM

Re: Glowing exhaust pipe.

Quote:

Originally Posted by -Ralph- (Post 2200611)

Do they get hotter when it's dark? ;)

:smt043

Seen my curvy do this, just presumed its cos it wasn't getting cooled from the air hitting it??:confused:

ophic

03-03-10 09:35 PM

Re: Glowing exhaust pipe.

Quote:

Originally Posted by -Ralph- (Post 2200611)

Do they get hotter when it's dark? ;)

Of course. Otherwise they'd glow during the day too :rolleyes:

brettsv650

04-03-10 03:15 AM

Re: Glowing exhaust pipe.

alright i think it is the carbs i called the old man and he said the bike sat all year he had nut run it at all i order the carb kits today so going to try it out thanks

brettsv650

04-03-10 03:17 AM

Re: Glowing exhaust pipe.

oh YA IT WAS DAY TIME WHEN I SEEENN IT

Alpinestarhero

04-03-10 07:53 AM

Re: Glowing exhaust pipe.

How long was the engine left idling for? I've had mine happily idling for a good 10 minutes (when I was checking the fan ages ago) and didnt notice the front pipe was glowing hot.

Generally, if its getting hot quick you are either: holding the throttle open at standstill, you've got the choke on so it son a fast idle, or - like neeja said - the engine is running lean (more heat is produced).

What makes oyu think there is a sufficient problem with the carbs that you need to refurbish it with a kit? Had you tried taking them off and cleaning them, then getting it all set up correctly? Its a cheaper option (if you have the capacity to do it for yourself)

In saying that, nothing wrong with preventitive replacing of things if stuff is old :D

Spanner Man

04-03-10 08:02 AM

Re: Glowing exhaust pipe.

Good morning all.

Tight valve clearances can cause exhausts to get excessively hot. When were they last checked?

Cheers.

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