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-   -   Regulator/rectifier how hot should they go? XT600E (http://www.horizonsunlimited.com/hubb/yamaha-tech/regulator-rectifier-how-hot-should-64183)

bacardi23 10 May 2012 02:47

Regulator/rectifier how hot should they go? XT600E
Hey guys!

As the title says: Regulator/rectifier how hot should they go? XT600E..

Since ever, mine gets fairly hot I can barely touch it... :confused1:

Vando beer

McCrankpin 10 May 2012 13:30

As far as I know, that's normal.
A friend on a trip to France on a VFR750 once noticed how hot his regulator was running - just checking things over at a petrol stop. He wanted to call the RAC immediately.
Instead we found a Honda dealer who very helpfully gave it the full test and said "all OK - yes you can burn your finger on one if you keep it there!"
He rode that bike another 4 years or so with no problems.

I've never done such a 'finger test' on any of my bikes. Usually there's so much stuff to remove before you can reach it, it would have cooled down anyway.

But it's always a good idea I think to make sure nothing is blocking whatever airflow around it that the manufacturer has provided. Like bits of luggage squeezed into nooks and crannies.

awolxt 10 May 2012 17:08


I think thats why they put cooling fins on the later ones , cos they get hot and the fins help dissapate the heat. That would be my thinking.


otr002 20 Jul 2012 04:28

Ok……when your battery is fully charged and the bike is using less power (keeping it simple) than the amount of power being produced (with me so far :thumbup1:), then the excess power is converted to heat which is dissipated by your reg/rect.

So if you reg/rect is cold, then, either you are using all the power being developed, or you are riding in -56 deg weather :cool4: or there's an issue with your charging circuit!

Rod (keeping it simple)

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