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Old 10-09-2011, 11:24 PM   #1
KIMB3R
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Default Sv650 running issue

I'm having trouble keeping my sv650 running. It was in a front end accident. It wouldnt run at all but after some wiring work new plugs oil clean carbs it now cold starts and idles but with any throttle it dies right out. Any thoughts?
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Old 10-10-2011, 06:05 AM   #2
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Its not getting fuel. If its a fuel-injected model check the fuel pump output, ensure the throttle body boots are seated, check the throttle position sensors for damage or not calibrated.

If its a carburetor model, look for physical damage to the carbs, intake boots are sealed, throttle cable damage.

There are some excellent SV-650 forums out there that will have a lot more details.
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Old 10-10-2011, 07:42 AM   #3
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Quote:
Originally Posted by KIMB3R View Post
it now cold starts and idles but with any throttle it dies right out. Any thoughts?
Basics first.
Until the bike is warmed up, some choke will be required to allow it to come up off idle.......and even then it might be rough.
Let it warm up for a few long minutes and see if it doesn't get better.
Air filter must be in place too.
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Old 10-10-2011, 10:22 PM   #4
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It is carbureted, and I understand it needs to warm up, however after allowing the bike to warm up and easing choke off it will rest at an easy 1200 idle when easing on throttle or passing mid range and giving full throttle it dies out
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Old 10-10-2011, 10:26 PM   #5
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Quote:
Originally Posted by Easy Rider 2 View Post
Basics first.
Until the bike is warmed up, some choke will be required to allow it to come up off idle.......and even then it might be rough.
Let it warm up for a few long minutes and see if it doesn't get better.
Air filter must be in place too.
I allow it to warm up and set at idle and when I pull on throttle slow or fast it still dies, I did put the air box back on and seal it. Not the issue
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Old 10-11-2011, 08:57 AM   #6
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I allow it to warm up and set at idle and when I pull on throttle slow or fast it still dies,
Does it accelerate better if you leave the choke partly ON ??

This sounds very much like the classic "gunked up carb" problem.
You need to check for vacuum leaks around the carb.
Next drain the tank and float bowls......unless you have done that already.
Put in fresh gas with a double dose of Berryman's B12 Chemtool.
Run it until warm. Drain bowls again. Run enough to fill bowls back up.
Let it sit overnight.
If you don't see any improvement after a couple of repeats of this run/sit cycle.......then the carbs probably need a manual cleaning.
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Old 01-05-2012, 02:27 AM   #7
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On SVs the petrol cap is recessed and there is a drain pipe that runs through the tank and exits at the bottom. These can rust through letting water into your tank or petrol out when full. The previous owner thought that was what was happening with this tank and araldited a piece of plastic tube inside the drain pipe. When it didn't work he sealed it up completely! So any water that colected in the petrol cap recess just worked its way into the tank!
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Last edited by Satchell : 01-11-2012 at 12:26 AM.
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Old 01-05-2012, 01:11 PM   #8
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So after the accident how long did you let it sit?

Ethanol + sitting = clogged carb/injector.
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