how ya going guys , just after some info on my speedo speed for me 74 shovelhead , i have owned it for 14 years and the speedo use to read pretty close to the right speed ,  (21" front wheel speedo drive) over the year has been getting alittle worst , not oto bad , then the other day i changed the speedo cable (broke) and now it about 20kms out and at around 120 kms an hours the needle jumps around afair bit , im thinking the speedo drive is worn , but i would have thought it would slow down , any help to get it back on track would be great , thanks Wal

I broke a cable on my 85 Evo, so I fitted the GPS from the car so I knew how fast I was going. Turns out with the new cable and drive, I am18 klm out on the speedo?

yes 1to1 is gearbox driven,,,,2to1 front wheel driven,, if its out that far & needle bounce is going on it needs rebuilding,
the speedo will be placed in a jig for the bezel to be removed with out damage, the insides will have a build up of soot & the like, around the manetic cup & other parts, the speedo bounce usually occurs when the spring is not at tension any longer, mostly due to vibration & wear,, it has to be taken apart cleaned worn parts replaced, re-calibrated, assembled,its abit more involved than that but you get the picture,,l use to collect HD speedos and had just about 2 of all model big twins from 1935,ive sold most now & only have about 6 or 10 most have been rebult, up till about 1966 l forget the correct year now but about then, they were made by stewart warner ,they started getting cheap from then on, l mean cheap internals..
l cant get any more restored now since he died eating a pie in his shed, & was the only reliable guy l know or knew.that restored car ,bike ,speedometers..some of the after market brands are o.k. ive been lucky with a couple of them, unlucky with others, now l dont bother unless its an origonal for the bike its going on..Good Luck with what you Decide.... .

Thanks fellas for the reply , i think i will change out the speedo drive first and go from there , they dont make it to easy with all them ratios , i had a look on the speedo and all its got is 1400prm=60kms , no idea what that is , any ideas , thanks again , Wal

Iv,e used Gauge Works, Port Rd, Adelaide SA ph 84456644. They have rebuilt speedo,s and tacho,s for me with excellect results. 

 thanks for all the info guys , the old manual doesnt tell ya that sort of stuff , i have a mate that makes up stickers , i got him to make up some of these for me , i recon they look alright , put one on the back of my helmet , what you ya think , Wal

Does your mate want to sell any of those stickers?? Bloody brilliant.

 i will ask the question , stay tuned

Does he do flathead ones?

I got in contact with him today and he said $10 each posted , the measurements of the 1 in the photo is 7" wide by 4" high , Ross he can do what ever you like , he made another for me with my name in the middle as a joke , so i stuck it on me toolbox at work , he also make some with just the black lettering and black border , Wal

OK I,ll be in that, I,ll take 4. Let me know via PM how you would like payment etc.

Cheers

 

Getting back to the speedo drives this may or may not help, its from the online microfiche in Reference docs and how to guides at the bottom of the forums list. Prices may or may not be well out of date but its a great help for part numbers

	67120-84B	DRIVE UNIT, speedometer 84 - FXWG	$56.10
44	67127-84A	DRIVE UNIT, speedometer 84 - FXSB; Late 84 - FXE-80	$56.10
44A	67124-80	DRIVE UNIT, speedometer (kph only) 80 - All Models except FXWG	$48.45
44A	67127-73	DRIVE UNIT, speedometer (mph only) 73 to 83 - All Models except FXWG	$56.10
45	67130-69T	DRIVE GEAR UNIT	$37.32

That little triangle says, 23T71 &72 All models 80-83 FXWG
 

I will grab a couple of those stickers mate!

thanks Burnzi , i still havent got one yet , have emailed a couple of blokes , but no reply , i have to get all my stuff on the net or travel , Wal

Great post. Has anyone dealt with Jan willem boon in the Netherlands and if so whats the postage like for something like a speedo  ? ! Mine just fried it's insides  and would like an original .

Noddy

Thanks Bankockbob, mine is toast and jwb are supposed to have one on the shelf that is supposed to be nos

Cheers Noddy

Apologies ,,, Bangkok Bob .