News:

This forum is run by RPM and donations from members.

It is the donations of the members that help offset the operating cost of the forum. The secondary benefit of being a contributing member is the ability to save big during RPM Holiday sales. For more information please check out this link: Membership has its privileges 

Thank you for your support of the all mighty FJ.

Main Menu

Speedometer issue

Started by CCDave, June 24, 2019, 02:18:16 PM

Previous topic - Next topic
Print
Go Down Pages1
User actions

CCDave

June 24, 2019, 02:18:16 PM
Okay everyone, I have an issue with my speedo. It is accurate up to about 55 mph. After that it jumps about 5mph or faster and exponentially off above that. when it says 120 my true speed is only about 95 mph. Any ideas? it is steady though I.E. only jumps at 55mph.

Motofun

#1
June 24, 2019, 03:10:37 PM
Time slows down the faster you go...therefore you can go farther.  More miles in the same amout of time equals a faster indication.  I could be wrong about this..... :wacko1:
'75 Honda CB400F
'85 Yamaha RZ350
'85 Yamaha FJ1100
'89 Yamaha FJ1200
'09 Yamaha 125 Zuma
'09 Kawasaki KZ110 (grand kids)
'13 Suzuki GSXR 750 (track)
'14 Yamaha FZ-09
'23 Yamaha Tenere 7
SOLD: CBX,RZ500,Ninja 650,CB400F,V45 Sabre,CB700SC,R1,GSXR1000R

Pat Conlon

#2
June 24, 2019, 04:58:42 PM
Hey Dave, service the speedo drive gear (at the left front wheel) clean it and lube it.
Next service your speedo cable. Remove the inner cable clean it and lube it up.

If the problem goes away...cool....if not, take the speedo cluster off your bike, box it up and send it to San Diego.
http://www.fjowners.com/index.php?topic=5718.0
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3
Print
Go Up Pages1
User actions