750 SECA Runnin' GREAT!

I got my 1983 XJ750R on the road for the first time this year, it's runnin' GREAT! Fast bike too, not for beginners, makes a wicked wah wah sound under acceleration :twisted: !
I got a new battery sensor in place, but the damn warning light still blinks after starting anyway :x , and sometimes reads Battery but goes away.
The differential makes a loudish wurr sound at low speeds too, but the gear oil is topped off, so I guess that's the way it is.

 

if that sensor ain't in the acid the light comes on, might want to check water level
i never noticed a wurr from the differential

 

Bro's Virago 750 does a Wurr sound at low Speeds, it's just normal for his.

 

I checked the water level, it's OK. I just got the battery on 3-28.

 

That's called "middle gear whine" and it's a trademark of shaft-drive XJs. Your 550 Seca won't make that noise I guarantee it (the 550s have their own unique noise, thank you.)

Now get the little one running.

 

Did you insert the battery sensor into the correct cell? You can't just plug it into any cell. Each cell is 2.0 volts for a total of 12 volts nominal. You plug it into the 3rd from last (if I remember right).

 

my seca has the same problem it does every once in a while also. i like the advice from sushi and believe he is correct.

 

Is that third from right or left?
Thanks

 

Sensor always goes in the 4th cell AWAY from the NEGATIVE, which is the 3rd cell AWAY fromt he POSITIVE terminal.

NOTE: Do not place the sensor in any other cell, or it could damage the microprocessor in your dash!

 

Thanks Len.

Having ridden for MONTHS with mine plugged into the wrong cell (duh, me), I tend to believe that if you're in a cell closer to negative, you are BELOW the voltage that the computer requires to shut off the alarm. This is the same as if the sensor were not in contact with the electrolyte and as such, shouldn't cause any damamge.

On the other hand, if you plug it into a cell clower to POSITIVE, you are over-voltage and it seems very likely that you would cause computer damage.

Not to diss my co-worker, but he's the one who plugged it in for me before I took the bike from him. I should have checked it sooner.

 

Thanks Guys,
I moved the sensor over to the third from +pos. No blinking, all normal. 8)

 

Don't you just love a "free" fix?

 

Sure, but free is not always easy. As an example: carb cleaning, free or close to it, major PITA. :cry:

 

Pfft..carb cleaning is neither free, nor easy. I estimated $400-ish dollars in tools and parts to do the job CORRECTLY.

 

Tools don't count, because you reuse them indefinitely. CORRECTLY sounds pedantic, schools out just make it work.