TheHaflinger.com

Both of those positions look great.

Steve, That looks really nice!

Armed with a strobe with an rpm dipslay I now find that my VDO tacho displays completely duff info (either about double or about half true rpm?) on all dip switch settings, so I am not hopeful that the pot screw will be able to get it right . Maybe I should have been more demanding of VDO when I asked whether it would be OK. Hey Ho!

Steve - does the tacho that you have have the "Drag Specialities" logo on the lower section of the dial? All the vendors I can find sell that tacho with the logo, which in an ideal world it would not have. Such as http://www.dragspecialties.com/products ... tId=125566

Hi Julian,

Sorry to hear of your woes with the VDO tach. Perhaps they have another version of that type which might work better in a Haffy application.

My tach does not have the DS logo but I noticed that the latest offerings do. I agree, not ideal but could likely be easily removed with a little disassembly. The other thing my tach does not have is a rev limit pointer but perhaps later models do. This isn't really a big deal as I simply put a short length of red pinstripe tape on the lens at 4800rpm which did the trick nicely.

As I mentioned previously, I'm very pleased with my tach. I think it looks pretty good and functions very well. A perfect match to the look of the old VDO instruments would be nice but what would be the point as we all know that a tach was not an original option for Haflingers.

Cheers,
Steve

Just to cconfirm that I now have working tacho in my Haf. IMHO it looks pretty good & "authentic" too. I will play about with the mounting soon, to make it look better, but in the interim it will give me more confidence than I had before. I have cross checked it with a tacho gun with a digital readout, and for all revs (@ 500rpm intervals) the tacho & the gun cross check perfectly. I have taken it for a test run, and at 30mph (my normal "cruise speed") it shows ~3,750, and at 4,000 rpm I'm doing about 33. Therefore I feel confident that the 36mph max speed on the placard will still keep me below the governor speed.

I bought one of these - http://www.wemoto.com/parts/picture/wk-310304/ . I see that they now say that it is unavailable, and even for me it was a struggle to get them to ship me one, but in the end they did. It was approx GBP75 which, whilst not cheap, it is cheaper & works much better than the other one I had shipped in from the US.

PS It even has a rather cool "full scale deflection check" when the ignition comes on.

Looks the goods - glad it worked out.

My emails to the US suppliers of the VDO one I am interested in brought no response.

Garry

Hi Julian,

Your tach looks exactly like the one I'm using from Drag Specialties for older Harley motorcycles. They work just dandy for Haflingers

Cheers,
Steve

Julian,

Did you test it against both strobe tacho's whilst you had mine as well? That would have been a definite confirmation.

Other than having to spend money on other things at present (oil leak on the passenger side hub) which I had not planned on at all and sorting out the carb, I would be looking at putting some sort of tacho in mine just to find out why it won't run faster than 37/38 mph under most circumstances.

John

John,

I didn't test it against yours as well, but the one I bought was exactly the same model as yours, so I'm happy to trust it.

Julian

I have no complaints with the strobe / tacho gun except that its a difficult thing to put into the cab to use as a Tacho!

So, what are you going to do with the old tacho if you don't mind me asking? I wouldn't mind playing with it to see if I can get it to work correctly, but if you are going to send it back that's fine.

John

John, You'd be welcome to having a play with the old VDO one; if you can get it to work a very small contribution would be nice, but if you don't then either keep it or return it to my box of bits.

Julian

hi Julian,

Next time I am up at yours, I'll pick it up and have a look. If it uses dip switches to select different ranges, maybe I can find the correct resistance to put in it to get the display to read correctly.

John