Swopping Speedo Heads

[ManQu]

I swopped my 750 head for a 600 as the odometer/mileometer has disappeared.
I noticed two diff top speeds and wondered if the speed sensor would still give the same 30 and 50 mph readings..

anyone else noticed this???

PS I also noticed the rev counter has also an extra 500rpm difference between them too

[pnut1236]

I think the 600 has a 47t rear sprocket and the 750 has a 45t one which would make the speedometer off if you did the swap. I may be wrong though so hopefully others will chime in.

[ManQu]

I think the 600 has a 47t rear sprocket and the 750 has a 45t one which would make the speedometer off if you did the swap. I may be wrong though so hopefully others will chime in.

Funny you say this ,the 160mph 750 clocks seemed to be reading 5 mph faster than I was moving. I.E. @ 30 it showed 35, @ 50 it was 57 and @ 70 was nearer 80mph

I have just changed chain and sprockets a DID set and went for stock,these did the same speed uptill I changed the clocks.

Suppose I need to speed check with a fixed camera that flashes up your speed.....

[Kreylyn]

There should be no difference for the reading, as the output is the same to both guages. The gauge interprets the actual speed from the digital input, so... while they have different displays, they would both show the same actual speed with no other changes.

Krey

[ManQu]

Well you never would have thought it.... The 600 speedo is reading spot on cording to the flash up speed warning.
@30 shows me @ 29 and @40 said 39.....so I don't know what the head was out of before IF it was a replacement.
I presume the speedo heads only fit the Kats and nothing else like the busa.?