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No spark SV 650
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No spark SV 650 - January 10, 2012, 12:00 PM

Hey guys I have a 2001 suzuki SV 650 that doesnt want to start here is what I just tried with it any advice on what the problem might be would be helpful.


Check volts across battery: 12.7v


Check for spark by pulling plugs and grounding them out on the case: no spark on cylinder 1 or 2


Check voltage at coils by putting muilti meter lead in coil (where the spark plug hooks up) and grounding other lead: both coils read 12.6v volts with key on, 0v with key off, both coils read 9.7v when cranking.


Check #1 cylinder signal generator wire (black with yellow tracer): reads 12.6v when sitting, key on, before cranking: reads over 380v when cranking and will not return to 12.6v when cranking is stopped.


2008 Buell 1125R Street
2001 Suzuki SV-650 Track
1998 Yamaha FZR-600 Project...
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January 10, 2012, 12:15 PM

I'll buy it for 10 bucks.


ay ya yay
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January 10, 2012, 01:02 PM

My bike is in Haymarket if you need parts to troubleshoot.


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January 10, 2012, 02:20 PM

bad gas?


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January 10, 2012, 02:26 PM

Two fairly common electrical problems I've encountered with the 1st gen SV are the starter relay (check the relay's 30 amp fuse first; if good then try switching it with a new relay -- about $15 on eBay) and the regulator/rectifier (replace with an upgraded MOSFET type). A bike that'll crank but not fire sounds to me like the starter relay.
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January 10, 2012, 04:00 PM

The problem with my SV was the failure of the resistor in the ignition switch. I got plenty of extras resistors if you want to come get one and try it. I'll show you where to connect it to.


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Last edited by CrazyMotorcycleGuy; January 10, 2012 at 04:34 PM..
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January 10, 2012, 04:10 PM

Thanks for all the responses, I ordered a starter relay and it should be here next week. If that doesn’t do the trick then I will try the resistor in the ignition switch.


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January 10, 2012, 04:31 PM

You mentioned it is cranking, so why would it be the starter relay? From my knowledge, the starter relay is just to transfer power to starter solenoid. I'd definitely look into the rectifier.

Quote:
Originally Posted by Austin1125R View Post
Thanks for all the responses, I ordered a starter relay and it should be here next week. If that doesn’t do the trick then I will try the resistor in the ignition switch.
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January 10, 2012, 04:45 PM

Check the resistance values on the switch side connector of the ignition switch. Turn the switch to on and put one lead to red and the other to orange. And then orange/red and black/white.


It's not going to be the regulator/rectifier. As long as the battery has power the bike will crank and start even with the r/r completely disconnected.


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Last edited by CrazyMotorcycleGuy; January 10, 2012 at 04:49 PM..
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January 10, 2012, 05:19 PM

To see if it is the relay, bridge across the two terminals on the relay with a screwdriver, if it fires up, that's your problem.
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January 10, 2012, 07:32 PM

SVs have a tip-over sensor that is notorious for just this problem -- don't know if Gen 1s had that sensor. Check the clutch switch, kick-stand switch, and kill switch. Any of these switches can prevent starting.
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January 10, 2012, 08:19 PM

This problem started when I was at the track and the bike died on me wile I was trying to accelerate. I ended up rolling off to the side and laying it down on its side. When I got back to the pits it wouldn't restart. It's set up for the track so there is no kickstand but I don't know about the other switches. Hopefully I will be able to look it over some more tomorrow and try a few of these things you guys have suggested.

Thanks for all the help


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1998 Yamaha FZR-600 Project...
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January 15, 2012, 11:19 AM

I tried the starter relay by bridging it and it still cranks but wont fire. Also tried jumping the bike off a car battery (car not running) and still no go. The kick stand switch has been removed and it appers the wires that used to go to it have been jumped and capped.


2008 Buell 1125R Street
2001 Suzuki SV-650 Track
1998 Yamaha FZR-600 Project...
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February 4, 2012, 06:03 PM

Just an update problem is fix and the bike lives, new stator/signal gen/pick up, thanks for all the help.


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2001 Suzuki SV-650 Track
1998 Yamaha FZR-600 Project...
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February 4, 2012, 08:23 PM

I had the stator problem before.That is hard to find the problem as alot of people will not think of that.Good you got it going.


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