Warnng lamp

just was given a 1981 750 seca having a problem with battery warning lamp on dash can someone tell me if it a simple fluid level sensor and is there a simple way to test the sensor . so far have replace all fluids, striped and cleaned carbs,replaced fuse panel,replaced brake pads and shoes, rebuilt calipers and master cyl ,replaced battery,replaced spark plugs,cleaned and dielectric grease in all connectors, all that have left to do is warning lamp and set valves if missed anything please let me know

 

Is the sensor in the correct hole ? Should be in 3rd hole from positive terminal

 

it is a fluid level sensor. did your new battery come with the sensor?
there is a thread about this

She Runs!

Picked up a 1981 Seca 750 the other day

Wire to battery!?

Batt sign on Atari




The HCP14180 Battery Sensor Bypass Kit

 

the new battery did not come with sensor but do not know history when got bike the warning lite had been painted black over so could not see red lamp flashing found new oem sensor on ebay but wanted to test first because going to be around $100 with exchange and shipping don't mind spending money as long as fixes problem

 

$100 dollars! I believe mine was like $15 at the local Yamaha dealer. I would check with Chacal before I ordered from eBay.

 

Chacal also has a kit to convert it to a low voltage light. This allows you to use any type of battery instead of having to use a typical lead acid battery allowing you to keep the OEM fluid level sensor.

HCP9982 Aftermarket battery fluid SENSOR BY-PASS WIRE, for all XJ650 Police, 1981-83 XJ750 Seca, 1982 XJ750 Maxim, XJ750 Euro (11M) models, XJ750 Police, and XJ1100 models. Completely replaces the original sensor with this bypass sub-harness. Typically needed when using a replacement battery that does not accept an original style screw-in sensor. Tuned resistance level allows the display and warning light indicate low battery voltage condition, but no longer tells you anything about the fluid level (of course, a low voltage condition could be caused by a low fluid level, among other things). Simple plug-in installation to the original main harness sensor lead wire; contains an extra male bullet terminal for the main harness wire, in case someone cut it off in the distant past (a common problem with previous owners!). You can review the installation procedure for this product at: http://www.xj4ever.com/HCP14180%20batte ... bypass.pdf

 

Fixed mine for 2.25$ Radio shack resistor 2.2 ohm if I recall .

 

Where in bc are you have one sensor doing nothing in my toolbox

 

I am in Nanaimo on the sland

 

Don't have to pay anything.........start the bike, let the computer do its check---when the light starts blinking for the battery, push the 'warning' button on front of the cluster to de-activate it. (push once to light them all up, push a second time to turn the light off.

I just do it as a matter of course, doesn't hurt anything.

 

I understand can turn off flashing warning light but I am particular about everything working correctly call me anal but think will change sensor for now but like the conversion to read low voltage am going to order kit thanks everyone for information and help

 

All I know is....hitting the reset button gets really annoying after the first two hours of riding.

 

This.

It's the reason I installed Len's kit on mine and did the writeup in the first place.