Bike Cranks (No Start) Will Push Start Though
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Squid
Joined: Sep 2007
Posts: 38
Bike Cranks (No Start) Will Push Start Though
Hello Everyone. My 2000 Superhawk will crank and crank but will not start. I try it with choke, without choke, stand up, stand down, neutral and in gear with clutch to rule out safety switches. i crank it to a point that the battery dies. It seems to be cranking fast like it always does. If I have someone push start me then it fires right up. I think the starter might be taking to much juice from the coils or the coils are getting weak. Any ideas will be appreciated. thanks. Anthony
Out of my mind, back in 5
MotoGP
Joined: Nov 2006
Posts: 6,109
From: Skurup, Sweden
Start with the basics... You could have a weak battery/defective R/R meaning not enough charge on the battery to start, but enough to run...
When fully charged what voltage is the battery? Should be at a minimum be above 12.5V or else the battery is highly suspect... When running, what charge voltage at idle? And at 3000&5000 rpms?
Could also be the starter motor... All of theses are mote likely than coils...
When fully charged what voltage is the battery? Should be at a minimum be above 12.5V or else the battery is highly suspect... When running, what charge voltage at idle? And at 3000&5000 rpms?
Could also be the starter motor... All of theses are mote likely than coils...
Thread Starter
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Squid
Joined: Sep 2007
Posts: 38
After I trickle the battery for a few hours it reads around 12.4-12.6 range. It drops fast after cranking a couple times for a few seconds each. Probably down around 12 or so. I also did a few checks and the voltage from the convertor to the coils while cranking is 9.56 . The voltage from the ICM is a little over 11. I think both should be 12 at least to fire the coils. I'm thinking the convertor is bad or the battery lost amperage even though is shows decent voltage. I cleaned as many connectors as I could resaonably get to also.
Out of my mind, back in 5
MotoGP
Joined: Nov 2006
Posts: 6,109
From: Skurup, Sweden
The odds are on the battery, not the converter... Try hooking up a known good battery and trying again... Any 12V battery works, car/lawnmower/whatever... A larger battery will not harm the bike in any way...
Thread Starter
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Squid
Joined: Sep 2007
Posts: 38
Got the battery load tested and it checked out ok. 206 cca 12.6 volts.
Hooked up car battery and the same result. Just cranks. No fire. I ground the plug against the valve cover bolt and didn't see any spark from the plug. I am only getting 11 volts with the key on to the coils. Shouldn't it be the battery voltage of 12.6? When I engage the start button voltage to the coils (out of the convertor) drops to the 10 range or high 9 range.
Hooked up car battery and the same result. Just cranks. No fire. I ground the plug against the valve cover bolt and didn't see any spark from the plug. I am only getting 11 volts with the key on to the coils. Shouldn't it be the battery voltage of 12.6? When I engage the start button voltage to the coils (out of the convertor) drops to the 10 range or high 9 range.
Out of my mind, back in 5
MotoGP
Joined: Nov 2006
Posts: 6,109
From: Skurup, Sweden
A load tester isn't really a good way of knowing that much about your battery... It's an easy test, not a good test...
But the car battery should have worked if all else is OK...
But the car battery should have worked if all else is OK...
Thread Starter
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Squid
Joined: Sep 2007
Posts: 38
THE POWER OF CONTACT CLEANER. So after being ready to sell the bike for parts I decide to pull apart every connector on the bike like I should have the first time. instead of just looking at them I sprayed them with electrical contact cleaner. Not sure what connector it was but the bike started of on the first crank. I was in the frame of mind that it had to be a failing part and not a small connector or wire. I would suggest that if you have an electrical problem that is hard to diagnose; dip the bike in contact cleaner the go from there. Thanks for all the help especially Tweety who helps a lot of people on this site with good advice.
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