I am the owner of a Honda motorcycle [CBX1000] who lives in Hiroshima City, Japan. I am posting about FCR carburetor and CBX1000 customization. I also post about things other than cars and motorcycles. We will post information that will make bikers around the world happy.
When I went touring the other day, I touched the AS air screw, PS pilot screw, and idling stop screw, so I thought that the synchronization might be loose, so I made time to do it from 17:00 to 18:00. I synchronized while being careful not to be unable to work due to sunset. For the time being, I had re-synchronized properly, so there were no problems. I have done the work. The goal is to finish it in a short time. Recently, the purpose of motorcycles has shifted to other directions, such as riding for disassembly or test runs. I'm making progress, so next time I'd like to be a little more patient and enjoy tuning in a more rough way. As I was writing this article, I was thinking about going somewhere solo to eat something delicious this weekend. This blog post is synchronized with FCR, but it ended quickly, The content is brief, as the main focus was on fine-tuning and confirmation.
Let's go to the usual mountains. The first thing to do is calibrate the meter. There is no point in synchronizing if the hands are not balanced. FCR synchronization completed without any problems. The main thing is to check if it is correct and make fine adjustments. I took the tank down and worked on it, but it was in such a state that I almost couldn't touch it. If the fluctuation range is small, it may be necessary to wait a while after moving the screw. I'm careful every time, but it's a simple task to prepare for, I'm trying to improve the quality and pay more attention to things than last time. This time, I tried to wait a while after touching the screw to check the change in the gauge. It wasn't that the synchronization was particularly off, so the main thing was to check. However, you won't know if it's correct until you check it. There seems to be no particular change in the before and after work. I think the most fun part was heading deep into the mountains for a test run.
For FCR Beginners – To what extent do you synchronize?
To what extent will FCR be synchronized? There is only one answer. Do it as perfectly as possible. That said, things have precision. The vacuum gauge needle is moving. You cannot finish the game unless you decide on the accuracy. For example, if you want to match the scale of the black line on a vacuum gauge, the thickness of the black line is 1mm, so the deflection of the needle should be within 1mm. You need to decide like this. If there is a slight wobbling of the needle between the scales, there may be a slight deviation, but if you are aware of this, you may be able to feel the synchronization of precision. It is impossible to match it perfectly, but you can match it perfectly to the guide run you have decided. If you don't have a vacuum gauge, you may be able to adjust the throttle valve opening using a taper gauge. It's better than doing nothing. Another method seems to be to insert a wire into the throttle valve so that it falls at the same time as the throttle is opened, but I have never tried that. If the carbs are not synchronized, the engine speed will drop. If it is slightly misaligned, it will not affect driving, but If there are symptoms such as the speed not decreasing when you release the throttle, you can visually check. I think adjustments are necessary. Once you start synchronizing, it's hard to see the end. Even if it's a little rough, it won't interfere with driving and won't damage the motorcycle. If you are new to FCR, I think you might want to try synchronization as part of your step-up. One hurdle is to gather the tools before that. In the modern world of 2022, information can be easily obtained by searching on the web, and tools can also be purchased on the web. By the way, a spanner is required, but the spanner [7] from a slightly special lineup is required. You'll also need a slightly longer flathead screwdriver. I hope you enjoy it, including the part about arranging the tools.
This time I worked even though the sunset was approaching. Depending on the nature of the work, it is best to allow plenty of time to complete the work. I will write down some reflections about this tuning. In order to increase my knowledge of FCR, I try to touch it whenever I feel like it. It is also important that you touch it often and for a long time. I think it's important to plan and touch things. This time, I started tuning when the sun was tuning and finished tuning before sunset. I forgot something on the way to the mountains, so I had to turn back and waste some time. For example, if an unforeseen incident occurs during disassembly, such as dropping a bolt, you may not be able to finish tuning by sunset. Since I am traveling on a motorcycle, I will not be able to go home. I should have started working in the morning. You won't be able to work if you only think about problems. If you do work that involves disassembly, things that used to work correctly may no longer work properly. The worst thing you can do is break something that moves. I will be careful about such things and enjoy FCR life. Everyone, please be careful when working outdoors before sunset. See you again!
*Photo gallery is posted at the bottom.
Photo of attaching and detaching CBX1000 FCR
We have posted a gallery of photos of FCR installation and removal, including past articles.
