Latest findings on new yy250t 244 By whid (Read 549 times)

[whid]

What a bizarre scoot... I decided to hook up the multimeter to the battery and ride with it to get a better understanding of my new ride. Here are my findings...
When idling, I bounced around 13.2 to 13.4 it seemed to be gradually climbing. (It hung at 13 flat and only got to 13.2 with revs a few days back before changing the stock oil).

So I take off and in my parking lot I began seeing high 13's.
Got on my neighborhood road and with speeds of 30-35, she held
a pretty steady 14.1-14.2

Here's where it gets strange....
The high beams did not change the read out at all... But when I used the passing high beam switch in front of the left grip (the trigger type switch for short bursts of high beam) the voltage plummeted. 13.7-13.8 and would recover instantly to the 14.1-2 range when released.

When back in my parking lot, held the high 13's. 13.8-9
Got parked and sat to observe idling.. 13.7-8
I had just been sitting and idling and was only seeing 13.2-4

Then the fan kicked in.... dropped quick to the 13.2-4 range again
and slowly kept dropping to 12.8. But would climb quickly with revs.

At that point I just shut her down. I feel much better about the charging ability.... surly the oil change didn't make that big of a change? or maybe it did.... I got on it a bit in the neighborhood and felt a definite improvement in power.

Just sharing my test to add to the knowledgebase of this awesome university!

[justbuggin2]

that is normal your voltage will be lower just after starting the bike and as you rode alittle it will build the voltage in the battery from starting and the high and low beams run of the charging system and the passing light gets it power from the battery the fan draws its power from the battery and the R/R will see the added current from the fan and give you more power to make up for it with the higher revs

[alleyoop]

It appears your charging system is doing its the job pretty good.
Alleyoop