A to M conversion complete but Speedo indicates incorrectly

[tpcastellano]

Hi Everyone,

After much more time than I expected and with advice from many on this board, I have completed converting my A model into an M model using the parts from an M I bought off Ebay last Spring.

Most everything that came from the M was usable and worked except for the speedometer. It seems to lag behind the actual speed and indicates about 1/2 of the actual speed. I didn't swap over the M models speedo drive from the front hub. Is it possible the A and M have different ratios?

More about the process and pictures later, but for now I am glad it is together and runs!

Tim

[Jess]

Your speedo needs to be cleaned. Simple procedure. Requires you taking the cluster completely apart.

I will bet 50 bucks there is a solidified glob of "grease" (looks like clear mucus) that has settled at the bottom of the speedo bell that is acting as a counterweight. use denatured alcohol on a long Q-tip and clean it off... You speedo will work as well as it did from the factory. (which is not very well).

Best,

[tpcastellano]

Hi Jess,

Thanks very much! Good advice exactly on point!

Tim

[timpa136]

Dec 5, 2016 15:20:12 GMT -5 tpcastellano said:

Hi Everyone,

 I didn't swap over the M models speedo drive from the front hub. Is it possible the A and M have different ratios?

More about the process and pictures later, but for now I am glad it is together and runs!

Tim

Tim,

The front wheel speedo. drive gear is changed to be nearly 100% accurate and is compatible to use for the M models. The M models were darn near

9% optimistic. I recently purchased a new and still available drive gear and it is the A model and accurate. Looking forward to your pictures.

Timpa136

[jm0406]

I like thinking I am faster than I am.
Jeff