Maxofun.fr

2026 05 11 Here We Go

Mon, 11 May 2026 07:17:17 +0200

TADA !!

After long hours of debug i finally reached to write swing keihin ECU.

I let you doing the tour of the software. Checksum is verified before writing and you will have a save proposal.

To flash ecu you will have 2 ways :

Connection on diagnostic plug, but be carefull you will need a strong battery charger during the actions, Lots of equipment are runing when butterfly box is not joinable.

2026 05 03 Bench Preparations

Sun, 03 May 2026 16:13:29 +0200

Bench preparations

Reading/Writing ECU on the scooter directly is not nice, the scooter is keeping some equipments ON and is draining the battery. And i will have to manage the writing part of my software on the KO Parts i will grab.

So i decided to create a cable to connect directly to the ECU.

For that i used some recycled parts :

2026 05 03 ECU MAP Studies

Sun, 03 May 2026 06:23:25 +0200

ECU MAP Studies

Before receiving another CDI 16400-KRJ-792 i decided to run a bit the swing on the road.

And i saw that it was ok upto about 7000/7500 rpm about speed, but after that it was long to achieve 100km/h.

I was suspecting a limitation to A1 (11kw) reglementation, ok that can be from variator or clutch but as i felt it wasn’t. I am clearly limited.

2026 04 30 Extra

Thu, 30 Apr 2026 23:43:22 +0200

Phone fixture model

As this scooter is my new lovely travel device, i wanted to fix my phone on it.mostly for GPS. After some search i saw that it was difficult to find something correct for my budget. Then i decided to design one…. i focused on creating a 17mm ball then you will be able to add what you want on it.

2026 04 30 Files Analyse

Thu, 30 Apr 2026 09:39:56 +0200

Whats inside the files?

The goal now is identifying the maps and data from Renesas chip and 93C66. Winols is a kind of Rolls to manage and edit files. I used it in the past and had to re open it. I won’t speak about it here and won’t provide any link. Just to say that you can download a DEMO version for free and see what’s inside the ECU. I am not a pro of tuning, and not familiar with petrol engines. Most familiar with TDI lol.

2026 04 29 Diag Plug and ECU Reading

Wed, 29 Apr 2026 19:01:16 +0200

Diagnose Plug of the Silver Wing 125

The diagnostic Connector is near the battery under the seat, you have to unmount 1 cover to access it. The connector is coverred by a red cap to remove. it is a 4 Wires version. I will post picts asap about it.

Howto connect?

You need 2 things :

OBD 4 pin adapter Get it on Amazon.

ECU Opening Time

Sun, 26 Apr 2026 00:00:00 +0000

What’s inside