User Profile

[Kauaiguy]

You could get a cheap Bms just for charging and bypass for discharge.The 40/60 amp Bms are small enough to fit under lid and about $30

[Kauaiguy]

If you don’t put the phase wires back the way they where from the factory you can get the motor to spin backwards.

[Kauaiguy]

Try another battery charger to see if it’s a battery problem or charger problem.A bypass battery can easily get over discharged and have cells get out...

[Kauaiguy]

Surron rotor is 203mm,looks like you run a 180 mm disc...

[Kauaiguy]

Are your wheel spacers on the right side,there different sizes

[Kauaiguy]

I would not buy anything from Russia.

[Kauaiguy]

If your bike stand sensor broke off make sure those wires aren’t shorting together,mine did until I found that out.I just removed the whole wire to...

[Kauaiguy]

Headlight is 12v,you could go to the controller and put wires to the battery input for voltage reading...

[Kauaiguy]

Use a hair dryer to soften the glue,it comes off pretty easy.

[Kauaiguy]

With that fault you might not get a blink code because bms sees 0 volts when B16 has bad connection ( Bms is in the battery and records/faults).The percentage...

[Kauaiguy]

Look up the B16 mod in the Surron sticky thread on Surron fix’s,that match’s your symptoms.