Granty
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Everything posted by Granty
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Hi. Explained to the boss mechanic what was happening. He told me it could be more than one thing that was causing the problem. His bet was that the ECU mapping was objecting to the throttle being given a handful and being held on. Which would explain when eased back a smidge the bike just about took off and revved freely. They ran the diagnostics and checked for error codes. Nothing found. Checked the Yamaha data base for any mentions and recalls. Again nothing abnormal. Full service carried out and low and behold when riding the fifty miles back home it ran perfectly. However I'm putting part of the solution down to a change in the way I'm using the throttle. I've tried building the revs progressively just short of the red line before the up-change and it seems to be working. I'll make an update if the problem returns. Regards and thanks.
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Hi all. Tried yesterday by rolling the throttle progressively and in fourth and fifth gear it came in again at about 8500 revs and would not go beyond. Closed throttle and re-opened it and revs built up to the red line. Tried it several times with same result. I'm booked in at the dealers on Friday so I'm hoping to get it sorted. Is it possible for the ECU to have logged it in it's memory as fault. ?. I'll report back on Friday night. Regards.
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Hi. Thanks for the reply. Next time out will try rolling the throttle progressively with less urgency and see if that works. You have a good point and I can understand the thinking behind it. Thanks and regards.
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Hi all. I have a 2019 YZFR 125 with 3200 miles recorded and booked in for it's 3500 mile service. I use Esso and Shell petrol although i have used other makes when out in the sticks. In fourth and fifth gear when accelerating with throttle rolled back to it's max and at 8200/500 revs engine stutters and wont progress. Release throttle a smidge and engine then free revs right up to the red line. It does'nt do it in any other gear. My first thought was contaminated fuel. However its not a problem in any other gear. Help please. Regards.