Wed, 05 Oct 2022 13:53:00 +0000

Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
 
Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
Wed, 05 Oct 2022 13:53:00 +0000 linkquote
Hello everyone, here i am again. I have a very weird problem with the mp3. Maybe someone recognizes this or has had it. I noticed it all of a sudden but I think the problem came gradually.

When I use the rear brake, the engine cuts out. This only happens when I have almost come to a stop. If I'm just driving and I use the brake it doesn't cut out. It happens even when I use the foot brake. I can only squeeze the front brake as hard as I want but then it doesn't cut out. Sometimes when I use the rear brake to come to a stop, you hear it want to stall and when I squeeze it, it crashes. I've been through a lot of crazy issues with it but this one is really a mystery. I already checked if that pin of the asr\abs is not good but everything looks good. now it's still quite dry it doesn't give much problems but in wet or cold weather I want to come to a stop with the rear brake and not with the front.
Wed, 05 Oct 2022 14:06:39 +0000

Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
 
Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
Wed, 05 Oct 2022 14:06:39 +0000 linkquote
Initial guess is that the "clutch" is not disengaging when coming to a stop. Granted, this is a CVT but it still has to engage and disengage the engine to the driven wheel.

Specifically, check the metal bush on the crankshaft and make sure the cone slides freely and smoothly without catching or hanging.

With every belt service, I put a very light coat of high speed bearing grease on the outside fo the metal bush and fill in the 2 grooves on the inside of same bush to keep things lubed.

Also lightly grease the needle bearings inside the rear clutch assembly. Just a fingertip of high temp bearing grease is enough. Less is more is the key here.
Wed, 05 Oct 2022 15:12:51 +0000

Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
 
Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
Wed, 05 Oct 2022 15:12:51 +0000 linkquote
I'm pretty sure the problem isn't there because the front brake can still be used. I understand what you mean and when you let go of the gas, you also feel that the clutch grabs the belt at the end. But this is really weird, even when I stop braking, the engine revs up again. It's like there's some kind of off button on the rear brake. I tested it recently and if I brake hard above 3k rpm nothing happens but below that it revs lower and then cuts out as long as I squeeze the brake, if I release it just before it cuts out it revs up again and it stays on. I'll take it apart a bit over the weekend to see where it's coming from. I also checked the killswitch and the air filter. But it was al just fine.
Wed, 05 Oct 2022 15:32:11 +0000

Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
 
Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
Wed, 05 Oct 2022 15:32:11 +0000 linkquote
Check and adjust your throttle cables if you haven't done so already. They might be binding.
Wed, 05 Oct 2022 20:16:07 +0000

Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
 
Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
Wed, 05 Oct 2022 20:16:07 +0000 linkquote
One more thing, also recalibrate the ASR per the instructions in the owner's manual if you have not done so already.

The ASR is very intrusive on these bikes. Hopefully that is all it needs.
Thu, 06 Oct 2022 07:59:05 +0000

Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
 
Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
Thu, 06 Oct 2022 07:59:05 +0000 linkquote
Both cables work well, the back and forth works well and is not loose either.

I didn't know you can calibrate the asr. but in the manual I can't find anything about it, but I also couldn't find a workshop manual for the 300 hpe.
At first I thought the throttle had to be calibrated, but I saw that this can only be done with the obd.

But none of the brakes are connected to the engine, so I really wonder how that interacts. Today I also had to brake hard for a car and immediately fell out again. No malfunction visible on the dashboard. Crazy mp3 stuff. If i am not riding then there is always something else what happend.
Thu, 06 Oct 2022 14:19:47 +0000

Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
 
Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
Thu, 06 Oct 2022 14:19:47 +0000 linkquote
1. With ASR "ON" ride a short distance above 3 mph until ABS and ASR lights go off
2. Allow engine to idle for 5 seconds
3. Pull Hand brake simultaneously will pressing the "ASR" button for 3 seconds. ASR light will now flash slowly
4. Accelerate to a constant speed of 18-15 mph for at least 8 seconds (ASR will flash fast)
5. After procedure switch ASR "off" wait 60 seconds; then turn on.
Fri, 07 Oct 2022 08:17:14 +0000

Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
 
Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
Fri, 07 Oct 2022 08:17:14 +0000 linkquote
Thanks for the info, I didn't know that. I'm going to try this over the weekend.
Also I found someone who has the software from piaggio. So I may soon be able to read and update problems myself.
Fri, 07 Oct 2022 11:43:24 +0000

Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
 
Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 911
Location: Belgium
Fri, 07 Oct 2022 11:43:24 +0000 linkquote
You know "someone" that has the PADS? That's odd, because it is sold only to official Piaggio dealers, and besides the high hardware purchase costs it requires a supplementary annual subscription with Piaggio.

In other words, just having the Piaggio diagnostic hardware is useless unless it has a active subscription.
Tue, 11 Oct 2022 07:43:25 +0000

Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
 
Member
piaggio mp3 hpe 300
Joined: Mon, 01 Aug 2022 07:26:33 +0000
Posts: 40
Location: NL
Tue, 11 Oct 2022 07:43:25 +0000 linkquote
Unfortunately your trick didn't work, I couldn't manage to perform the steps properly. But after looking closely I saw that the rear brake system also goes over the rolllock, so I think that something is wrong between them, also because it is only the rear brake. The front brake is drained from the reservoir and the rear brake continues past the rolllock.

No, it is not a pads system but a standard OBD system that can read. unfortunately the system cannot send a signal back so updating is not possible. I'm going to see what the system can do this weekend and what I can read.
   

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