I used it for the undercarriage and got a good impression of it, so I bought it for the fuel system next
The negative pressure carburetor is easily charged to the diaphragm and jets installed on the carburetorBody
As soon as I started the Engine, I felt the sound changed to a muffled feel
And when you start to run, the change is like a darker change to the setting
After Fire is also gone and seems to have more mixed air in it
It was such a change that I felt the need for Setting
18.51 USD (2,750 JPY)
Webike Point: +28 pt
(0.18 USD)
Delivery Information
If manufacturer have in stock, ships around 24th Jul. 2025
Product detail
Ionizing bolt size: 5 x 15
**Yamaha SR400Fi carburetor is 4 x 20..
* The image is only for reference. The image shown may differ from the actual product.
[insulator band bolts]
This is a static eliminating bolt that attaches to the insulator.
In the intake system, it resists the introduction and flow of outside air and the inflow of the air mixture into the engine.
The so-called "thump" is probably caused by the static electricity of the insulator pulling the air mixture and preventing it from entering the engine smoothly.
If the static electricity of the insulator is removed and the air mixture enters gradually, the sticking will be less.
Thump also leads to a time lag.The lack of thump also means that you can accelerate early on.
The ability to accelerate smoothly from an early stage means that you can reach your target speed without having to open the accelerator more than before.
If you can drive smoothly, it is easy and safe, and if you open the accelerator pedal less, or open it less time, fuel consumption will naturally increase.
The earlier you can accelerate, the better your time will be.This is one of the main reasons why electric motor vehicle have better times.
The insulator band bolts are used to slow down the power of the insulator
Just replace the original insulator band bolts!It is.
Internal combustion engines that use rubber insulators are always electrically charged.
Points of Attention
* If there may be an instruction manual included, it will be written in Japanese.
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Customer Reviews
Reviews with image
Fits:YAMAHA XS650 (Carburetor), YAMAHA SR400 FI
Apr 7, 2019
Changes like changing the Carburetor setting
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