FCR-Beginners

FCR-tuning - With Boko - 2022-07-02...

While cruising,when I suddenly open the throttle from 1/8 to 1/4 or 1/2,I have a problem where it hits me,or the air-fuel ratio drops to 10.1. I couldn't adjust the PS pilot screw while the engine was running,so I tried various things.

2022.07.04

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FCR tuning - AS Adjustment - 2022-06-25...

CBX1000 FCR turning. I adjusted the AS air screw and the PS pilot screw. As I wrote in another article,my current opinion is that there are no surprising changes in PS and AS for each cylinder in the CBX1000.

2022.06.27

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FCR tuning - MJ main jet change - 2022-06-23...

Recently,the situation has become such that instead of tuning up FCR when I have time,I make time to set up FCR. I have to either calm down a little or get over it to the point where it doesn't bother me. Although it is called a main jet change,MJ and JN were changed.

2022.06.24

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FCR tuning - MJ or JN - 2022-06-20...

I couldn't help but worry about it,so I decided to leave work early in the morning and finish by noon to set up. I have no complaints about the turning,but what would happen if I changed them? I want to know. This time,MJ was changed and JN was changed accordingly.

2022.06.21

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FCR-Drain bolt O-ring replacement...

Drain bolt O-ring replacement for FCR33 pie. It was leaking gasoline,so I replaced it immediately. The symptoms did not improve even after replacing the chamber gasket,so I fixed it by replacing the O-ring on the drain bolt.

2022.06.20

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FCR Tuning - Changed from MJ(Main jet) 125 to 120 - 2022-06-18...

I mainly tried the MJ main jet. It's not in bad condition now,and when I drove on the expressway,the air-fuel ratio was 12.5 at full throttle and partial. It is unclear whether it is accurate at full throttle because it is difficult to measure the air-fuel ratio during partial and acceleration,and it is difficult to maintain the throttle opening for a long time.

2022.06.20

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FCR-MJ main jet purchase 36 pieces...

Currently,MJ's stock was limited to 102-128,so I purchased additional items. 6th place: 130,132,135,138,140,142. I purchased it as a POSH set. I bought a set of 6. I bought 6 pieces in a 6 piece set. A total of 36 pieces will be purchased,just the number of main jets.

2022.06.16

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FCR - Synchronization - Taper Gauge...

The suction force for each cylinder is slightly different,but even if you just match it with the taper gauge,the synchronization is good. Although it is far from perfect,there are two points below: (1) The engine does not idle at high speeds when it warms up. (2) The tachometer returns extremely poorly when racing.

2022.06.15

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FCR - SJ count tuning - tuning parts list available...

It's in the FCR manual. I bought and tried all of SJ's #35-#55. Roughly speaking,my vague conclusion is that the appropriate values for the return of the PS and AS screws will change. AS,SJ,and PS have different responsibilities.

2022.06.15

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FCR - turning when installing Foam Air Filter Sock...

When tuning up an FCR,you will always run into problems such as the characteristics of Foam Air Filter Sock and Velocity Stacks. Is it better to add it? Is it okay not to wear it? What are the advantages and disadvantages? This time,I would like to comment on such questions as a rider who regularly uses Foam Air Filter Socks. I don't think it's the correct answer,but I think it has credibility as an opinion or way of thinking.

2022.06.15

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