Starter motor relay/solenoid issues

Starter motor relay/solenoid issues
Posted by Mastiff on 22 Oct, 2019 08:07
Hi All,

My 2015 MT-01 has an electrical issue that I have not been able to fix. The starter solenoid keep burning out, some times it keeps turning the starter motor (battery has to be disconnected to stop this) or the bike just stops (loss of power) and the solenoid is not useable/burnt out. So far I’m on solenoid #4.

Has anyone had this problem and how was it rectified.

Surly my bike is not the only bike to ever have this problem.

Thanks in advance for any help.

#1 Reply
Posted by Jota on 23 Oct, 2019 10:11
Hi mate, yeah I had this problem a few years back. Solenoid kept sticking open on start and the only way to stop it was disconnect the battery. Emergency stop did nothing ... it just kept turning over until the battery was disconnected. My bike was still under warranty but every time I took it in the problem would go away. Happened twice. They did replace a relay under the seat which they seem to suspect could cause the issue. It was not the starter relay. Not sure which one though.
I do recall an issue with starter relay selection. The first relay the shop supplied me was not rated for start current these starters use so I did upgrade the relay to a higher current. Maybe check the current rating on starter relay first. Haven't had the problem since. Cheers Steve

#3 Reply
Posted by Mastiff on 29 Oct, 2019 09:05
Update,
The starter motor has burned out and will be replaced. Hopefully I can get one from a motorbike wreckers. If not it’s $1200AU for a new one. The issue is what caused the problem. F&#k it.

#4 Reply
Posted by Rocker on 29 Oct, 2019 18:54
https://www.ebay.co.uk/itm/Anlasser-Starter-Motor-Startermotor-Yamaha-MT-01-RP12-05-06/293247443638?hash=item4446e8e2b6:g:W4wAAOSwSfJdiyWu

#7 Reply
Posted by graeme on 06 Nov, 2019 09:58
With this problem generally, has anyone checked the actual starter button? Is it stuck "on" so keeping the starter turning?

#8 Reply
Posted by Mastiff on 06 Nov, 2019 21:56
Yep checked and cleaned the starter button, it’s working fine. Doesn’t appear to be the problem.

#9 Reply
Posted by Jota on 08 Nov, 2019 02:15
Hey Mastiff, just a thought but I wonder if the burnt out starter motor is the cause or the consequence. When this happened to me twice the bike started OK but I noticed a funny noise so turned the engine off and bloody hell the bike was still turning over on the starter motor. Hit the emergency stop and still its turning on the starter motor. Ended up having to disconnect the battery to stop the starter. So my concern was what would happen to the starter if it kept engaged for a long period. Would be interested to know how you get on. Cheers mate ... Steve