Charging issue

[Ickaruz]

Am going to buy a decent test meter tomorrow to begin working my way through the stator papers, however, I had a quick question. Is the regulator rectifier supposed to get wicked hot when the bike is running? I can't even touch mine and I was wondering if this was the norm or an indication of a problem with the regulator.

[psyguy]

a hot rr is both the norm AND the problem - as it may lead to a failure
the heat sink is undersized on suzuki units and their location out of fresh airflow is a prob on some models too
but an overly-hot rr may also be a sign that it may be on its way out - so do test it to know for sure
poor electrical connections contribute to heating as well

[Ickaruz]

Thanks for the info. I was wondering why they had it tucked up underneath like that. Seems a bit cheesy. I'll check connections tomorrow and hope that is it. I don't feel like dumping money into a stator or a regulator but I'll gladly take the lesser of the two evils.

[psyguy]

a popular upgrade is a (used) honda rr
some people built additional heatsink or relocated the unit so it gets more airflow

[Ickaruz]

I have a suski 1985 gs 700. Do you know what honda RR I may need?

[psyguy]

send a pm to "duaneage" on the forum here
he should be able to sort you out

[geezer]

I have a suski 1985 gs 700. Do you know what honda RR I may need?

If it were my bike and I was going to substitute a R/R from another bike, I would go with one from a KZ750 four cylinder. They're better designed and fail less than 1 in 4 when compared to the same Suzuki part.

You would connect it as follows.

Kaw - Suz
Yellow - yellow
black - black
red - red
brown - orange

Or you could buy a new aftermarket one...

Tony

[bonanzadave]

Try the RR ground wire right to the negative battery post. It should shunt more current and make the RR run cooler.