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Old 05-17-2010, 08:34 PM   #1
Allan-750
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Unhappy Power Problems

Hope i can make since with this? I have a 2007 GSXR 750 stock battery and as of late due to my work schedule I haven't been able to ride so of course the battery went dead so i have hooked up a charger and charged and started it and run it for a good while only to turn it off and it be dead the next day. So yesterday I went out and bought a battery tender plus from CG and hooked it up. The status light on the charger said it was at 80% so it starts but after hooking a volt meter up to the batter tender lead we notice the volts drop as you accelerate it and they dont increase as they should. Is the battery too far gone it wouldnt be a problem to replace it but im also thinking since the volts dropped that the alternator so to speak has gone bad any help guys I would greatly appreciate it stay safe and keep it o two wheels
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Old 05-17-2010, 08:37 PM   #2
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The battery hold a charge for restart and is also the modulator between the positive and negative post.

If the battery becomes a load over a cross point for the different charges it can infact pull the system down.

A tender or charger w the status usually only ready voltage on static charge, meaning the moment you put a load to the battery nearly all the voltage on static charge will drop off and the true efficiency of the battery remains.

If after one charge the battery wouldnt restart the bike, its likely done. Even a bad charging system wouldnt effect a battery after it sits off, the battery would recollect its charge and attempt to restart the vehicle.
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Old 05-17-2010, 08:38 PM   #3
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get a good DVOM and owners manual and start diagnosing it yourself. i dont want to/mean to sound rude, but its the easiest/cheapest way for you.

give me a few mins and ill dig up your owners manual and send the specs across...
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Old 05-17-2010, 08:41 PM   #4
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CHARGING SYSTEM
TROUBLESHOOTING
Battery runs down quickly
Step 1
1) Check accessories which use excessive amounts of electricity.
Are accessories being installed?
Step 2
1) Check the battery for current leaks. (9-9)
Is the battery for current leaks OK?
Step 3
1) Measure the regulated voltage between the battery terminals. (9-10)
Is the regulated voltage OK?
Step 4
1) Measure the resistance of the generator coil. (9-10)
Is the resistance of generator coil OK?
YES Remove accessories.
NO Go to Step 2.
YES Go to Step 3.
NO
• Short circuit of wire harness
• Faulty electrical equipment
YES
• Faulty battery
• Abnormal driving condition
NO Go to Step 4.
YES Go to Step 5.
NO
• Faulty generator coil
• Disconnected lead wires
Generator
Regulator/Rectifier
SCR
IC
IG. switch
Load
Battery


pg2.

Step 5
1) Measure the generator no-load performance. (9-11)
Is the generator no-load performance OK?
Step 6
1) Inspect the regulator/rectifier. (9-11)
Is the regulator/rectifier OK?
Step 7
1) Inspect wirings.
Is the wirings OK?
Battery overcharges
• Faulty regulator/rectifier
• Faulty battery
• Poor contact of generator lead wire coupler
INSPECTION
BATTERY CURRENT LEAKAGE
• Remove the front seat. (8-7)
• Turn the ignition switch to the OFF position.
• Disconnect the battery - lead wire.
• Measure the current between - battery terminal and the -
battery lead wire using the multi-circuit tester. If the reading
exceeds the specified value, leakage is evident.
09900-25008: Multi-circuit tester set
Battery current (leak): Under 3 mA
Tester indication: Current (, 20 mA)

YES Go to Step 6.
NO Faulty generator
YES Go to Step 7.
NO Faulty regulator/rectifier
YES Faulty battery
NO
• Short circuit of wire harness
• Poor contact of couplers
* In case of a large current leak, turn the tester to high
range first to avoid tester damage.
* Do not turn the ignition switch to the “ON” position
when measuring current.


pg3.

REGULATED VOLTAGE
• Remove the front seat. (8-7)
• Start the engine and keep it running at 5 000 r/min with the
dimmer switch turned HI position.
• Measure the DC voltage between the + and - battery terminals
using the multi-circuit tester. If the voltage is not within
the specified value, inspect the generator and regulator/rectifier.
(9-10 and -11)
NOTE:
When making this test, be sure that the battery is in fully-charged
condition.
09900-25008: Multi-circuit tester set
Tester indication: Voltage ()
Regulated voltage (Charging output):
14.0 – 15.5 V at 5 000 r/min
GENERATOR COIL RESISTANCE
• Lift and support the fuel tank. (5-3)
• Disconnect the generator coupler.
• Measure the resistance between the three lead wires.
If the resistance is out of specified value, replace the stator
with a new one. Also, check that the generator core is insulated
properly.
09900-25008: Multi-circuit tester set
Tester indication: Resistance (Ω)
Generator coil resistance: 0.2 – 0.9 Ω (White – White)
∞ Ω (White – Ground)
NOTE:
When making above test, it is not necessary to remove the generator.
Battery
DCV

pg5.

GENERATOR NO-LOAD PERFORMANCE
• Lift and support the fuel tank. (5-3)
• Disconnect the generator coupler.
• Start the engine and keep it running at 5 000 r/min.
• Using the multi-circuit tester, measure the voltage between
three lead wires.
If the tester reads under the specified value, replace the generator
with a new one.
09900-25008: Multi-circuit tester set
Tester indication: Voltage (~)
Generator no-load performance:
65 V and more at 5 000 r/min (When engine is cold)
REGULATOR/RECTIFIER
• Lift and support the fuel tank. (5-3)
• Disconnect the regulator/rectifier couplers.
• Measure the voltage between the lead wires using the multi
circuit tester as indicated in the table below. If the voltage is
not within the specified value, replace the regulator/rectifier
with a new one. (10-40)
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I will not allow myself the weakness to lay aside responsibility of my actions to a higher power and write that weakness off as destiny. Vigilance, intelligence and discipline keep us alive out there.
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Old 05-18-2010, 10:30 PM   #5
Allan-750
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I appreciate the help

Hey guys thanks so much i really appreciate the info and thanks for pulling that info up for me im just wondering once I get the new battery that will be it im really hoping i dont have to change anything else it really sucks having something so nice and it just sitting and collecting dust and things go bad on it but hopefully thats it and well be on the road again thanks
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Old 06-01-2010, 10:50 AM   #6
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Hey thanks for the help we checked it out and with the voltmeter found out it was just the battery now if i could just get rid of the F-1 light on my display lol. Had some more questions if you dont mind what do you think the average time for the sparkplugs are? Still running the the ones from when i bought it noticed the bike was running kinda funny going up through the gears after it sat for so long ut once i got it on the freeway and opened it up it went away also about the oil is any of the stuff cycle gear sells any good appreciate the help man
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Old 06-01-2010, 11:03 AM   #7
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Quote:
Originally Posted by Allan-750 View Post
Hey thanks for the help we checked it out and with the voltmeter found out it was just the battery now if i could just get rid of the F-1 light on my display lol. Had some more questions if you dont mind what do you think the average time for the sparkplugs are? Still running the the ones from when i bought it noticed the bike was running kinda funny going up through the gears after it sat for so long ut once i got it on the freeway and opened it up it went away also about the oil is any of the stuff cycle gear sells any good appreciate the help man
codes- put it in dealer mode and pull the codes...

It is is small white connector that does not plug into anything, and has a rubber cap on one end. (either under driver seat, or in tail section)

BLACK W/ WHITE STRIPE
WHITE W/ RED STRIPE
you just use a paper clip or piece of wire to jump the two wires together in the connector.

This will display the codes in format "C" (ie "C15", "C32", etc)
These codes will tell you specifically what is causing the fI light.

plugs- shoot for about 10k miles

oil- just get a good reputable brand (ie. repsol, motul)
__________________
I will not allow myself the weakness to lay aside responsibility of my actions to a higher power and write that weakness off as destiny. Vigilance, intelligence and discipline keep us alive out there.
-kib
Rest In Peace Chris Owens aka faster321, you will be missed...
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Old 07-20-2010, 12:35 PM   #8
Allan-750
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Sorry i havent been on in a while have been busy with things as of late i appreciate the help just bought a K&N filter and some motul getting ready to change the oil here on saturday and hopefully be out riding if the weather stays together once again thanks
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