charge problem?
 

Hey

Im in the runnings to buy a 82 suzuki 1100... The guy says hes not afraid to take it any wear but occasionally wont charge. Im guessing its just a bad connection somewhere. I've got a little mechanical know how... Anyone think its worth the investment?

Thanks
John

Throw them chicken bones boy!
 

Not enough information for me to guess.

And even with all the information .. all second hand from the seller .. it would still be a guess.

In part the answer lies with you the buyer .. do you enjoy working on the bikes electrial system? And can you get parts cheap (or at least for a resonable sum)? And do you consider the price to be worth it? You get 3 yeses then buy it, anything else = pass.

Very Common Fault
 

With all the older GS series (and I'm assuming it must be from the little info you have posted), the regulator/rectifier system blows. There is a very good replacement available, much better AND cheaper that OEM Suzuki parts. Here is the website you need:

The GSResources - GS Garage

Go down to The Stator Papers for all you need to know, including about the best step-by-step diagnostic you could ever get.

Regards

Nigel in NZ

thank you so much for giving this advice. sorry for the thread hijack but im having the same exact problem. I have a 83 300gs that has been sitting for about 4 months due to winter here. When I came to pick it up the starter cable was cut(intentionally) and i dont know why... maybe someone was hot wiring it. Anyways when I went to pick it up I knew it wasnt going to start because I figured the battery was going to be dead from sitting around. So I went to buy a new battery... after 30min of riding I turned it off and came back 15 minutes later. Thats when I saw that the battery was dead(brand new battery). Should I buy that regulator or just try and diagnose the problem. thanks in advance.

p.s. I have problems with what I would think be my clutch. because when i floor the gas at higher rpms, it revs up but doesnt move any faster. Any advice would be appreciated. You can pm if you want so the thread doesnt get cluttered.

Two ways to 'fix' something...

1) Mote Carlo method. Chose a component - replace it .. if not fixed .. chose something else and so on.

2) Logical Method. Diagnose the problem - find out what component is faulty and replace that.

If the problem is consistent - there all the time both methods will work. If the problem comes and goes .. you'll only be certain of the 'fix' if you use method 2.

Me?
Charge the battery.
Measure the current drain into the bike - ignition key out, if more than 10 milliamps .. then remove fuses .. if no significant reduction in current then the only things left in the circuit I'd think would be the starter motor relay .. the regulator/rectifier .. unplug them and see .. you'll need a wiring diagram .. and some knowledge. Possibly the person who cut the wire .. added some other wires .. check around the ignition switch where it enters the main loom?

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Clutch .. change oil. Adjust free play. If still faulty .. replace.

The only problem with me is I dont really know what part is what. How do I measure the current drain, plus I dont know where all the fuses are at. Also I dont know where the rectifier is too. Please keep in mind I'm not trying to be annoying, I'm just a novice trying to learn. Is there a manual I can buy about my particular model or am I out of luck.

update on my problem... I connected all the wires that were cut off and charged the battery for 10 minutes and drove for about 2 minutes then it completly shut down. I tried starting it from a roll but it still didnt fire up :( . I still havent checked it with a voltmeter but I will try that on saturday. Should I check the volts at idle and then rev it after that. Also what volts should I expect.

12 minute is not long enough to fully recharge a flat battery .. try an hour at least.

There will be a manual for your bike .. may be not this years model .. one that covers a few years ago model.. It should giove you enough information. Join a HU community near you and ask for help .. much easier to physically show you want to do then type it all in ..

The DMM should also have a manual .. read it and use the voltage function to measure the battery voltage ..

Battery at rest (bike stoped - no charging) 12.5 volts - if less = crock battery or discharged battery.


Battery on bike - above idel speed between 13 and 14 volts
if less - not charging? Try externally charging the battery up
if more - regulator/rectifier is toast.

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Leave the bike discharging the battery for another time. It sounds like it is not charging the battery on the bike ...

Suzuki charging problems
 

The early 80's suzuki road bikes in the USA seemed to have a problem with charging systems. At the various bike shops I have worked at we got into the habit of replacing the stator and the rectifier/regulator when a bike had a charging problem. It seemed that once the regulator/rectifier or the stator went the other component was sure to fail. This wasn't just trying to pad the bill but to avoid another dead battery out on the road. And if your charging system does fail out on the road remember you can tie on a car battery and drive the bike a long ways especialy if you pull the headlight fuse.