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ihitge
20-06-08, 08:38 AM
Hi All,

I need some help please...

When a started my bike (SV650s '99) this morning there was a funny popping sound coming from the exhaust. It sounded like it was backfiring but it was not very loud but pretty frequent. There was a lack of power and it felt like it was struggling with fuel circulation (for lack of a better phrase).

Any ideas?

Thanks in advance,
Ian
ThEGr33k
20-06-08, 08:52 AM
Water in the spark plug?
Peetee650
20-06-08, 09:03 AM
or water in the fuel:(
plowsie
20-06-08, 10:11 AM
How long since you last used it, was it raining last time you were out?

Maybe a bad dose of fuel, remember, places were running low lately on everything, maybe you got the last cacky bit at a station...

First port of call would be the spark plug, make sure there is no water around there.

Is it a stuttering through revs when you say lack of power?
Dangerous Dave
20-06-08, 12:08 PM
Sounds like it is running on one cylinder every now and again, check the spark plugs for starters!
chasey
20-06-08, 12:10 PM
Mine does this when I start it. Goes away once everything gets upto temperature. I just thought it was because she was cold? :S
Dangerous Dave
20-06-08, 12:14 PM
Mine does this when I start it.
With or without choke, and does it stop when the choke is disengaged?
chasey
20-06-08, 12:20 PM
With or without choke, and does it stop when the choke is disengaged?

Only when I give it some choke. Just over-fueling or something?
Dangerous Dave
20-06-08, 05:20 PM
Only when I give it some choke. Just over-fueling or something?
Lube your choke cable and have a look at the choke/carb system.
sv_rider1990
20-06-08, 08:05 PM
Carbs mine did until i got them balnaced to the exhuast
yorkie_chris
20-06-08, 08:45 PM
Carbs mine did until i got them balnaced to the exhuast

How do you balance carbs to the exhaust then? :-P
Dangerous Dave
21-06-08, 11:30 AM
Carbs mine did until i got them balnaced to the exhuast
Ehh???
sv_rider1990
23-06-08, 07:24 AM
Dont ask me im not a mechanic lol.... thats what they said when mine went into have them done that and the 33bhp kit it was running to lean.
yorkie_chris
23-06-08, 10:05 AM
Probably more due to the fact that you've got an aftermarket filter. With whatever can and restrictor kit you put on it there's never usually a problem.
sv_rider1990
23-06-08, 12:13 PM
aaah i see thanks