Gen 1 SV650 - Possible Fuel Problem - Chicagoland Sportbikes
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post #1 of 68 (permalink) Old 04-12-2011, 08:12 PM Thread Starter
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Gen 1 SV650 - Possible Fuel Problem

I've not ridden my SV in a long while, it ran when I parked it. The battery was flat, and original to the 2001 bike, so I replaced the battery. Bike still didn't start so I topped off the tank with fresh gas, put new spark plugs in, and replaced the (probably original) air filter. Still no start. Checked all fuses, hoses, plug wires...even put air in the tires ().

How do I verify the fuel system is delivering fuel?

Anything else I should check?

The bike cranks but I don't get ignition, not even once.

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post #2 of 68 (permalink) Old 04-12-2011, 08:44 PM

 
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Pull the plug under the tank (it's easiest to get to) after you've tried to start it. See if it has fuel on it. Then while it's out, see if you have spark.

Fuel, Air, Spark. Gotta have them for it to run. Let us know and we'll go from there. I assume your using the choke as well.

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post #3 of 68 (permalink) Old 04-12-2011, 08:57 PM
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Bet your ass the Carbs are clogged

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post #4 of 68 (permalink) Old 04-12-2011, 09:26 PM
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Quote:
Originally Posted by Grasshopper View Post
Bet your ass the Carbs are clogged
This. I have to clean mine almost every year.
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post #5 of 68 (permalink) Old 04-12-2011, 09:35 PM Thread Starter
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Quote:
Originally Posted by gkotlin View Post
Pull the plug under the tank (it's easiest to get to) after you've tried to start it. See if it has fuel on it. Then while it's out, see if you have spark.

Fuel, Air, Spark. Gotta have them for it to run. Let us know and we'll go from there. I assume your using the choke as well.
That totally makes sense. I'll have to do that tomorrow since it's dark and I have no room to move the bike into the garage right now.

Quote:
Originally Posted by Grasshopper View Post
Bet your ass the Carbs are clogged
Thanks. How do I unclog them, assuming thats the problem?

Quote:
Originally Posted by glenn View Post
This. I have to clean mine almost every year.
I've had the bike since...'06, and I've luckily never had a problem with it. I guess it's about time for me to start learning more about the bike.

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post #6 of 68 (permalink) Old 04-12-2011, 10:01 PM
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Try some seafoam first. Otherwise it's time to pull & clean your carbs.
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post #7 of 68 (permalink) Old 04-12-2011, 10:03 PM Thread Starter
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OK, I'm impatient...I ran out there with a flashlight in my teeth and ratchet in hand.

I have spark to the plug, but it doesn't appear to be getting wet.

What's next?

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post #8 of 68 (permalink) Old 04-12-2011, 10:06 PM
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Petcock on mine went bad, damn vacuum diaphragm!

People take these things too seriously!
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post #9 of 68 (permalink) Old 04-12-2011, 10:21 PM
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Maybe someone will be nice enough to assist you with a carb service... Maybe not. It's a 3 hour job from tearing in to gettting them off to cleaning them to reinstalling them.

If you decide to dive in and are unsure STOP and ask questions. Be careful with the choke and throttle cables. They bend and break if you force them where they don't want to go.

I'm in Pearl Harbor working on an endless radio gremlin so can't help otherwise I'd say come down.

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post #10 of 68 (permalink) Old 04-12-2011, 10:25 PM Thread Starter
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I pulled the carbs when I first got the bike to do the carb mods the geeks at SV forums recommended, reinstalled and balanced...but I'm forgetful, that was 5 years ago....

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post #11 of 68 (permalink) Old 04-12-2011, 10:44 PM
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Eric if you can pull them off I can help you clean them.
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post #12 of 68 (permalink) Old 04-12-2011, 11:06 PM Thread Starter
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Quote:
Originally Posted by Dave13 View Post
Eric if you can pull them off I can help you clean them.
Thanks, I might take you up on that.

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post #13 of 68 (permalink) Old 04-12-2011, 11:13 PM
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I get to come play with that moose you call a dog in exchange for Dave's services.

I don't ride, I cook!
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post #14 of 68 (permalink) Old 04-12-2011, 11:31 PM Thread Starter
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I get to come play with that moose you call a dog in exchange for Dave's services.
Only if you give the pretty little pitbull some lubbs too!

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post #15 of 68 (permalink) Old 04-12-2011, 11:47 PM

 
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Have Dave give you a hand, we spoke about it earlier. Get some quality carb cleaner and disposable turkey baking pan at the grocery store. Get some good rubber gloves and put the carbs in the pan. Spray and clean em out. If you find you have any problems and aren't sure if you need parts, let me know. I have a spare SV (except for an engine). So i can loan you carbs, or coils or ecu or anything to test with.

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post #16 of 68 (permalink) Old 04-13-2011, 12:06 AM

 
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Spray them all you want if you dont remove the low speed jet and poke it through don't waste your time.

I'm sure to offend but don't waste your money on any of that shit you poor in the tank.

Good luck

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post #17 of 68 (permalink) Old 04-13-2011, 12:16 AM

 
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Quote:
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Spray them all you want if you dont remove the low speed jet and poke it through don't waste your time.

I'm sure to offend but don't waste your money on any of that shit you poor in the tank.

Good luck

True, spray till it goes in one hole and out the other. But if it's clogged good, you'll need to clean the orifice.... huh huh huh I said orifice.

Good point. I have a tool with all the different pin sizes to clean the carbs. I don't know where it is, or i'd give it to you to use.

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post #18 of 68 (permalink) Old 04-13-2011, 12:36 AM
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Damn, you guys make it sound easy. I looked at the barbs and could not for the life of me figure out how to get them off. I put everything back together. But I don't know if my bike has the same problem because mine actually starts and runs for a while. 2000 SV. I will be following this thread fo' sho'!

People take these things too seriously!
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post #19 of 68 (permalink) Old 04-13-2011, 01:10 AM
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I took carb 101 from Nick and Gus. A small piece of wire works well for cleaning carbs too.
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post #20 of 68 (permalink) Old 04-13-2011, 08:44 AM

 
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Quote:
Originally Posted by javio1 View Post
Damn, you guys make it sound easy. I looked at the barbs and could not for the life of me figure out how to get them off. I put everything back together. But I don't know if my bike has the same problem because mine actually starts and runs for a while. 2000 SV. I will be following this thread fo' sho'!
Just about anything in motorcycles, you should tackle with an experienced helper for the first time.

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post #21 of 68 (permalink) Old 04-13-2011, 09:30 AM
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I should have gotten this advice earlier!

People take these things too seriously!
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post #22 of 68 (permalink) Old 04-13-2011, 10:18 AM
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have a fuel pump?

disconnect the fuel line up to the carbs, place in a container, and press the starter button with ignition on and see if it spews gas.

or you can drain the carbs. crank bike over, and drain carbs again to see if fuel got in there.


pull plugs out and see if they are getting wet. (that could be bad ignition or carb is dirty)
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post #23 of 68 (permalink) Old 04-13-2011, 10:20 AM
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Quote:
Originally Posted by Lonely Raven View Post
Only if you give the pretty little pitbull some lubbs too!
Well duh!

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post #24 of 68 (permalink) Old 04-13-2011, 11:28 AM
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Quote:
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Only if you give the pretty little pitbull some lubbs too!
I'm telling Bri what you called her.
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post #25 of 68 (permalink) Old 04-13-2011, 11:31 AM Thread Starter
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Thanks guys, I'll try and pull the carbs off tonight.

Dave, PM me your number, I'm not sure I still have it in my phone since I wiped it when it got replaced.

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post #26 of 68 (permalink) Old 04-13-2011, 12:04 PM
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Quote:
Originally Posted by taledarkside View Post
have a fuel pump?

disconnect the fuel line up to the carbs, place in a container, and press the starter button with ignition on and see if it spews gas.

or you can drain the carbs. crank bike over, and drain carbs again to see if fuel got in there.


pull plugs out and see if they are getting wet. (that could be bad ignition or carb is dirty)
No fuel pump, vacuum operates petcock from rear cylinder intake manifold

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post #27 of 68 (permalink) Old 04-13-2011, 07:38 PM
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OK, how much Seafoam do I use? It says to use the whole bottle for 8 gallons and up. The bottle is 16oz. Should I use half?

People take these things too seriously!
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post #28 of 68 (permalink) Old 04-13-2011, 08:33 PM
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Take that sea foam crap and throw it in the garbage.

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post #29 of 68 (permalink) Old 04-13-2011, 08:41 PM
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Good thing I saved the receipt!

People take these things too seriously!
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post #30 of 68 (permalink) Old 04-13-2011, 08:48 PM
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Here's the thing... There are microscopic passage ways in the carbs that need to be cleaned. Diaphragms need to be inspected, needle and seat spring loaded widgets need to be inspected for proper operation / functionality. People think this sea foam shit will magically do all of this. Ahhhh no.

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