3rd gen vfr750f speedometer issues

Ok first off I'm new to vfrw and I so far have really enjoyed reading through forums and threads to fix issues on my bike. But, couldn't find a thread for this problem. I recently, like 3 weeks ago purchased my vfr. It's my first road bike and I absolutely love it, first 48 hrs I had it I put 380 miles on it. Couldn't get me off the damn thing. Any way I was going down the freeway last week and looked down and apparently I was going some where between 10 and 60, the needle was bouncing between the 2 and about 5 miles down the road completely stops registering anything even on odometer. Checked cable by front sprocket and looked fine to me but like I said, first road bike. Any ideas? Thanks in advance

 

Speedometer cable is located on left side of bike as you sit on it. You have to remove your mid-fairing to get access to it. It drives off the counter sprocket, so you have to remove the cover, a bunch of allen head screws and your there. What I have done is bought the new cable, removed the wire then removed the old wire, you can then snake in new one. The actual cable housing stays in situ. Otherwise its a whole ordeal to get to the back of the speedomet housing.

 

I have found that typically the cable itself is ok but the speedo drive coupling gets stripped. It's a white plastic piece that actually engages the counter shaft sprocket retention bolt. Remove the 90 deg gear drive off the sprocket cover to check the drive coupling if you have already found the cable is ok..

 

^ Good Call Jethro :thumbsup: forgot about that square block that the end of the gear gets "inserted" into that goes onto the hex nut on the end of the counter sprocket. I have had one of those go as well as the actual cable. I saw these a while ago. Dont have any personal experience with them though.

Aluminum Speed Meter Cable Adapter Joint Speedometer for VFR750 VFR75F VFR 750 | eBay

 

This. It's easy to check and replace. Don't take it to a big box dealer or they'll likely tell you to replace the cable even if you don't need to. Ask me how I know...

 

I had problems with the fitting/drive in the counter sprocket on my 3rd gen. I replaced several of the plastic/nylon drive gears (at least I seem to remember it was a drive gear). I finally ordered a fresh gear and got with my machinist neighbor and he figured out how to cast/machine on aluminum for me. Never had a speedo problem from then on (over 120,miles on it when the bike was sold).

 

Thanks so much for the responses. I think it's the white plastic piece, I looked and its rounded. Also I took it in to have the local honda dealer change the front tire and according to them my brake fluid has turned acidic and is eating my lines, they want 120 to change fluid and bleed the lines, that seem fair?

 

Well, most shops here get around 90 dollars an hour, for me to bleed your front brakes would take 10 minutes or so. So the labour to dollar value is pretty good for the mechanic and the dealership. The point is here: You have old brake lines, they are deteriorated from the inside - end of story. The best option would be to go for braided steel lines for the front binders. If I did this job, it would take me 1/2 to 3/4 an hour labour. Steel lines always go on every bike I own, another possible problem for your bike may be your front calipers. Bikes of this age tend to get smigma in back of the brake seals and this prevents the calipers from re-tracting after you release the brakes.

Nothing is free, I dont sweat parts because its all my labour, and if you didnt live in Utah and lived in sunny South Florida, I would do it for a six pack or maybe a pint of gin :smile: I am sometimes a nice guy...Good luck,

 

If only haha, I would be able to ride all year instead of the 4 months we get to here. Man I wish I was more motorcycle mechanically inclined lol. That sounds like a plan braided lines and little bit of trial and error it seems some I should be ok. Like I said in the original post it's my first motorcycle so it's a bit intimidating. Once again thanks for making me feel welcome to the forum and for helping out with my bike.