"jet needle"

FCR

FCR Tuning - Adjust the air screw to be slightly lean within the possible range, then adjust the accelerator pump - 2023-05-27...

I adjusted the air screw’s return setting and also changed the start position of the accelerator pump’s discharge. It’s been a while since I worked on the FCR. After a light morning ride with the usual 9F rider, I did the tuning.
2023.05.29
       
カテゴリCBX1000FCR
タグCBX1000FCRFCR-Beginners
FCR

FCR Tuning - Changing the Straight Diameter of the JN Jet Needle - 2023-05-09...

CBX1000 FCR Setting.Since last month, I have been gradually fine-tuning the settings. The idle and main jet are mostly decided. I’m focusing on the range affected by the straight diameter of the JN (Jet Needle), so this time I will change the straight diameter and take it for a test ride to see how it performs.
2023.05.09
       
カテゴリCBX1000FCR
タグASCBX1000FCRFCR-BeginnersJN
FCR

FCR Tuning - JN Jet Needle Straight Diameter and Clip Position - 2023-05-03...

Since changing the main jet, I’ve felt a power increase in my CBX1000. I’ve also been interested in trying changes to the slow jet and jet needle. I generally avoid adjusting the SJ (slow jet) when tuning the FCR, unless it’s beyond the adjustment range of the AS (air screw). For this reason, I decided to change the JN (jet needle).
2023.05.06
       
カテゴリCBX1000FCR
タグASCBX1000ColumnFCRFCR-BeginnersJN
FCR

FCR Tuning - Main Jet Change - 2023-04-14...

This post is a continuation of the blog where I talked about the test ride after tuning the FCR on my CBX1000. The change to the MJ (main jet) has been confirmed to lean out the mixture, going from 125 to 120. Although I mentioned in my previous blog that I was unsure which JN (jet needle) to choose, I realized that there is no need to change the JN immediately. Therefore, I decided to start by changing only the MJ.
2023.04.17
       
カテゴリCBX1000FCR
タグCBX1000FCRFCR-BeginnersMJ
FCR

FCR Tuning - 2023-04-12 - Considering the Jet Needle Strategy...

The other day, when I used the CBX1000 to go to a motorcycle event, I spent a long time on the highway. This is a story about checking the FCR's performance in terms of riding dynamics. Although I say I checked it, my overall impression was that the feeling I achieved seemed to be quite rich.
2023.04.12
       
カテゴリCBX1000FCR
タグCBX1000FCRJNMJSJ
FCR

What are the disadvantages of a racing carburetor? - Regular maintenance is required....

I will be writing a column about the necessity of maintenance for racing carburetors. Please understand that my views may differ from conventional thinking. It’s likely that many people use racing carburetors in street applications without much consideration.
2023.03.26
       
カテゴリCBX1000FCR
タグCBX1000ColumnFCRFCR-Beginners
FCR

Which racing carburetor should you choose? FCR, TMR, TMR-MJN, CRS, or others…...

I will write about choosing racing carburetors based on my own biases. This is more of a column-type content and does not necessarily reflect knowledge from personal experience. Besides the Japanese-made racing carburetors mentioned in the title, there are also brands like Dell'Orto. As I love Japanese-made products for their easy parts availability, I will focus on domestic options and not cover foreign products.
2023.03.24
       
カテゴリCBX1000FCR
タグCBX1000ColumnFCRFCR-Beginners
FCR

Is it easy for beginners to tune an FCR carburetor?...

FCRs have a wide tuning range and are said to be easy to set up... I sometimes see comments like this online, though I'm not sure how accurate they are. In my case, I've only worked on tuning FCRs for the CBX1000, so it's hard to say definitively. However, if you're doing rough and basic tuning, it is relatively simple.
2023.03.16
       
カテゴリCBX1000FCR
タグCBX1000ColumnFCRFCR-Beginners
FCR

FCR tuning - It is easier to make a judgment if you do the final check by test riding with two motorcycles....

When tuning the FCR on the CBX1000, I believe that comparing is important. Often, it's not possible to determine if something is good or bad based on just one factor. In my case, since I have an air-fuel ratio meter installed on my CBX1000, I can judge the performance based on the numbers. However, if the gauge is even slightly off, the readings may not be reliable.
2023.03.07
       
カテゴリCBX1000FCR
タグCBX1000ColumnFCRFCR-Beginners
FCR

FCR Tuning - For street use, be sure to check the throttle response at the initial opening....

The FCR is a racing carburetor, but in reality, most users spend the majority of their time using it on the street. An important aspect in the street scene is starting. On the street, there are traffic lights, which means frequent stops and starts. On the track, once you start, there is rarely a complete stop.
2023.02.23
       
カテゴリCBX1000FCR
タグASBremboCBX1000ColumnFCRFCR-BeginnersJNPS
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