SV running lean, or rich.
 

hi

installed a Fuel can a little while ago. recently ive noticed alot of black soot build but at the end /inner part of the can. also abit of soot has seemed to of escaped where the connecting pipe is (around the bolts area) today i also noticed this is going on to the swing arm!!

I made sure the bolts where extra tight and actually re adjusted them to fit over more/ better about a day after i fitted it.

any idea what this is? Is it the carbs need re adjusting or what? (Curvey, 2000 bike) I used to know but forgot :smt100

Thanks :)

Re: SV running lean, or rich.
 

Not sure about exhaust, seems like it could be prone to being inaccurate (in my head anyway) - I'd check the spark plugs if you're concerned as to how it's running.

Re: SV running lean, or rich.
 

Checked sparks awhile ago and they seemed fine.

what do you mean inaccurate?

cheers :)

Re: SV running lean, or rich.
 

If the colour of your spark plugs is fine (double check with a mechanical genius though) then I wouldn't be worried. unless you can feel it not running right?


If soot is escaping from bits then it's blowing a bit - that might cause ill running I think.

Re: SV running lean, or rich.
 

Bit of soot is normal, if it is running ok it is fine. Maybe have a glance at choke plungers.

Re: SV running lean, or rich.
 

It does seem to run fine.

cold stars the exhaust seems a bit blowy (slight lack of back pressure?)

i'll get a photo up and see what you think...

thanks :)

Re: SV running lean, or rich.
 

My can does it all the time, from the end and the joints.

It's just the more dirty parts of the burnt fuel showing there's a slight leak in the pipe joins and the staining on the end is because of the way an aftermarket can dicharges the exhaust gases.

If it runs fine it's not a problem except you have to clean the staining off!

On the joints you have a few air leaks and if the engine seems happy with them that's all you have!

But having a look at the plugs will let you know the engine is happy, but if it runs fine you only have the cleaning problem!

A race can is basically a through can with the odd bits that create the back pressure required, that means if you have the odd hole in the joins the gases squirt out of them.

Re: SV running lean, or rich.
 

just as a matter of interest, did you seal the joint with anything when you fitted the slip on can or not ?

Generally if it's a can only it'll have no adverse effect on running 9in fact have very little positive effect either for that matter, and is only a looks/sound thing.

Cheers Mark.

Re: SV running lean, or rich.
 

Well it did recommend i use some sealant stuff, but i didnt use anything.... i didnt think this would make a big difference, if at all.

should i apply some to the joints ?

cheers for the help... ill get round to checking a plug as see what it looks like :)

Re: SV running lean, or rich.
 

not to the joint, but within it yes, it'll stop anything coming out on the swingarm at the very least.

Cheers Mark.