ELECTRICAL ISSUE POST VALVE JOB

[two-stroke-brit]

Hi All.

thought i would see if it would start before putting everything back on.
and i put the battery on charge ,it shows 13.5 volts across the terminals.
but absolutely nothing when i turn the key.
no lights not even a glimmer.
checked the fusses all good there.

so jumped from the car and bingo.
started right up.

but when i check across the battery terminals at idle
it shows 16 volt .
this is on the bad battery still waiting on the new one.

is it charging to much because the battery if fucked
or does this point to a regulator issue.

obviously electrix are not my forte.
any help is appreciated.
mark

[two-stroke-brit]

well the battery arrived quickly
starts right up ,but the idle was a bit high and no need for choke.
put the min parts on for a test ride and the misfire is gone .
and revs to 10 k with ease(short test road).
mark

[Stig]

Check voltage to make sure regulator is ok

Batteries on these have a HUGE impact on the bike and it's running

[two-stroke-brit]

Check voltage to make sure regulator is ok

Batteries on these have a HUGE impact on the bike and it's running

.

thanks stig , i just checked 14v @idle and 15.3v @ 3000 rpm which i think is about right.

cheers mark

[Stig]

I'm no electric expert but that seems high. Think 14.4 is about max for healthy regulator

Someone might be able to confirm???

[two-stroke-brit]

i though so as well at first, i had seen somewhere a recommended range of 13.8v to 14.8v.
but on page 8-38 or 351 of the service manual however you look you up,
it shows @3000 rpm 14.3v to 15.3v.

this bike is a 89 but i have a 94/95 parts bike i could swap the alternator over from.
is that a big job to do ?.
thanks mark

[two-stroke-brit]

i see the regulator rectifier are mounted on the starter ,
which i would think would be an easy swap to test.
cheers mark

[two-stroke-brit]

that should of read alternator/generator .

well i swapped it out for the 94 and it made no difference.

so i guess its not the reg or rectifier .

so swapped the relays under the seat.

still no change.

i am stumped now

any suggestions are appreciated .

mark