FCR-FCR tuning in general. 6 cylinder tuning, AS, JN, MJ replacement, etc.

FCR Tuning - The tuning of the BITO is excellent when shipped!...

This is about the presetting of the FCR of the CBX1000. I called BITO to inquire about a custom order for a JN for the FCR. When I ordered the JN about half a year ago, they told me about the initial settings of the FCR. *Please note that the truth of what is written on the Internet is not certain.

2022.12.27

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FCR Tuning - Where should I tune the main jet at full throttle?...

This is about the main jet settings for the CBX1000. You may not need to worry about this too much on a small motorcycle, but where should you set the main jet on a large motorcycle? There is only one answer. [Chassis dynamo] Nowhere else to do it other than on the chassis dynamo. You can sign a contract for about 200,000 yen per month.

2022.12.24

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Selecting a jet needle for the CBX1000 FCR model - I want to choose something other than the 90FXM...

The current CBX1000 FCR jet needle shipped by BITO is apparently 90FXM#3. I called to ask. The 90FXM has a special cut-out with an [X]. Normally it's [T]. I don't want to change the taper angle, but I'd like to change the straight diameter in various ways, but there are no options.

2022.12.23

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FCR Settings - How to adjust the AS air screw and PS pilot screw...

I will write about my own method of adjusting the FCR screw for the CBX1000 FCR setting. There may be better ways, but this may be useful for CBX1000 owners who are just starting to set up their FCR. In my opinion, adjusting and synchronizing the screws on a 6-cylinder engine is more of a hassle than it is difficult.

2022.12.22

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Does the CBX1000 require an FCR accelerator pump?...

I'm writing about whether the CBX1000 needs an FCR acceleration pump. I want to make effective use of what I can use. Keihin also uses this mechanism because it is necessary. It is said that single engines such as the SR have too much total discharge. I think that the timing of the start of discharge should be decided more strictly than the total discharge amount.

2022.12.21

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FCR Tuning - Throttle opening 1/16 determined by straight diameter and slow jet...

This is a story about when I used a jet needle that I bought a few years ago for setting the FCR of my CBX1000 but hardly used. The other day, I looked back at the past logs about the changes in the straight diameter of the SJ and JN. My experience is different from that of my past self, so the accuracy and precision of what I have written down will be different.

2022.12.18

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FCR lifespan. It was fine even after 20 years of use....

Recently,I've been writing more about FCRs,but I haven't been able to touch or ride a motorcycle. This time,I'll write in a column-like format,but I'll also briefly talk about the lifespan of FCRs,which many of you are curious about. As the title says,my CBX1000 has had an FCR installed for over 20 years.

2022.12.03

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FCR tuning - I bought an acceleration pump diaphragm so I'll compare the sizes...

I bought an acceleration pump diaphragm for the KX400 to set up the FCR of the CBX1000. As of November 2022,the price should be 1,892 yen for two pieces. I don't remember exactly because I bought them together with other items. I should mention in advance that I only bought them and have not compared them since installing them.

2022.11.23

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CBX1000 FCR main jet full throttle tuning...

How should I set the main jet of the FCR? I don't know because I don't have an air-fuel ratio meter... I won't know unless I put it on the Dynojet and measure it... I'll write about the way I set the FCR of my CBX1000. I haven't put it on the Dynojet,but I have an air-fuel ratio meter and I drive on the highway.

2022.11.18

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Installing an FCR on a CBX1000 - 10 Essential Tips for Serious Tuning...

This article is aimed at people who want to start tuning up their FCR in earnest. It covers carburetor synchronization and tuning.

2022.11.18

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