MT-01 engine cutting out - 4 months in shop

MT-01 engine cutting out - 4 months in shop
Posted by Mastiff on 13 Feb, 2019 12:12
Hi Guys,

My 2005 MT-01 has been in the work shop for 4 months mainly due to slow part delivery from Yamaha.

The story goes like this:

Bike cut out and restarted about 4 times and eventually died. Taken to Yamaha dealership had fuel pump replaced.

Still cutting out had fuel pressure regulator replaced.

Still cutting out had idle speed control unit replaced.

The mechanic has discussed this in detail with Yamaha Australia (I have confirmed this) it now appears that a new ECU appears to be the fix. One should arrive in about 10 days.

I have all the old parts and it appears they are faulty. Yamaha think that the ECU will fix it and the other parts have been damaged by either the faulty ECU or Fuel pump.

So far it has cost me over $3k and with a new ECU $4500. As we all know parts for these bikes are ridiculously priced. Also I have been told that if the ECU dose not fix the problem I can’t get my money back, Yamaha policy.

I have been told that Yamaha Australia nor the mechanic can test my old ECU.

I would be interested in any helpful comments. Has anyone had a similar problem.

Thanks

#1 Reply
Posted by Collins2019 on 14 Feb, 2019 18:57
Hey bud just a suggestion why not reflash your Ecu would be a lot cheaper, , also have you checked the lean angle sensor? Also have you tried using a spare key? It could be just a bad transponder

#2 Reply
Posted by gorilla on 15 Feb, 2019 12:10
Had a similar problem turned out to be corrosion in the bikes kill switch ,i would be riding along bike would cutout and stop ,flick the switch on and off loads of times sometimes it would start sometimes not replaced switch no more problems

#3 Reply
Posted by Rocker on 16 Feb, 2019 15:29
Poor customer service mate try the kill switch as gorilla suggests then get your money back for the ecu, i would have thought by law they can only charge a restocking fee of say ? 5%

#6 Reply
Posted by Mastiff on 10 Mar, 2019 10:01
I am due to pick the bike up tomorrow, that being Monday here in Australia.
They have fitted the new ECU and assure me that it will work. Let you know how it goes.

#7 Reply
Posted by Mastiff on 11 Mar, 2019 08:11
Picked the bike up today after paying $1250 for a new ECU, rode about a kilometre and the bike shutdown again. The bike is back in the shop. I took a note of the odometer and it shows that the bike was test ridden for 60km as the shop stated without any problem.

Not happy

#8 Reply
Posted by Tartofraiz on 11 Mar, 2019 11:05
Incredible ...

I cannot remember any ECU failure being reported. It's probably one of the most robust parts of motorcycles in general. This definetely also applies to the MT-01, so I was very surprised that they identified the ECU as being the cause of your problems.

I hope they have checked the TPS ? Personally I haven't experienced any problems with it, but I have seen quite a few on various forums, with some of the symtoms you describe. You can drive 60 km without any problem although you have a faulty TPS ...

#9 Reply
Posted by TimR on 12 Mar, 2019 07:46
F0ck'5 sake !
I do hope you can get your money back from the incompetent dealer...!
TPS wouldnt cause the bike to shutdown I dont think..Yes, I have suffered a failure after nearly 60K miles. It can often be reset with a reboot but the issue is a physical breaking down of the brass parts within so this is only 'symptomatic" anecdotal report really..
ECU was a wild one. It ceretainly seems odd that all the ancilliaries you list are faulty..That's a perfect storm if ever there was one..Have you had the bits independently checked....?
Find a better garage before you need a second mortgage ! Yamaha may not return your money but if the service the garage provides isnt fit for purpose, you might have consumer protection of some sort ?

#12 Reply
Posted by graeme on 15 Mar, 2019 01:27
What a pain! Does the bike cut out with no power or does that still stay on?
The problem for Yam is that the ecu now only works on that bike.
The shop was clutching at straws for sure.
Consumer affairs for sure.

#14 Reply
Posted by Danmt on 16 Mar, 2019 19:30
From the manual:
"43:
The ECU is unable to monitor the battery voltage (an open or short circuit in the line to the ECU).
• Open or short circuit in wire harness. • Malfunction in ECU.
09"