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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Speedo calibration?
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<blockquote data-quote="Ducdude" data-source="post: 40973" data-attributes="member: 2077"><p>Good day all,</p><p></p><p>I took the Shadow out for a 100 mile cold (3C) romp to a local show today and did a bit of the trip on the motor way. I also had an aux digital speedo running to check the big old 150mph unit. What I found is that the faster I go the larger the delta is between the actual road speed and the reading on the bikes 150mph unit. The old speedo always reads high.</p><p></p><p>So at an indicated 30mph on the bike the actual road speed is 28-29mph <strong>at an indicated 50mph the actual road speed 47-48mph</strong> (not 42-43mph) and at a straight up 80mph I am actually doing 75mph and so it goes up to at least 100mph...</p><p></p><p>The needle's action is smooth and it always goes to zero when stopped. The speedo was cleaned and lubed (professionally) 3 years and 2500-3000 miles ago</p><p></p><p>Is there an easy/painless way to bring this unit into calibration on my own?</p><p></p><p>Much Thanks,</p><p>Eric</p></blockquote><p></p>
[QUOTE="Ducdude, post: 40973, member: 2077"] Good day all, I took the Shadow out for a 100 mile cold (3C) romp to a local show today and did a bit of the trip on the motor way. I also had an aux digital speedo running to check the big old 150mph unit. What I found is that the faster I go the larger the delta is between the actual road speed and the reading on the bikes 150mph unit. The old speedo always reads high. So at an indicated 30mph on the bike the actual road speed is 28-29mph [B]at an indicated 50mph the actual road speed 47-48mph[/B] (not 42-43mph) and at a straight up 80mph I am actually doing 75mph and so it goes up to at least 100mph... The needle's action is smooth and it always goes to zero when stopped. The speedo was cleaned and lubed (professionally) 3 years and 2500-3000 miles ago Is there an easy/painless way to bring this unit into calibration on my own? Much Thanks, Eric [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Speedo calibration?
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