4 replies to this topic

[RTM]

I have a early Fantic 125. (TX250) fitted with what I beleive to be a Dansi Ignition system (its stamped into the flywheel anyway)

There is a proximity switch (magic eye) fitted at 4.30 o'clock externally of the flywheel. It has two lines on it. One I guess would be the Fire mark (spark) and the other would be TDC.

On the flywheel is an arrow which points approximatly (within a degree or so) to a boss (nodule / button / welded blob) on the perimiter of the flywheel which passes the proximity switch as it rotates.

I's say this is the trigger.

Being a logical chap, I'd hazard a guess that this must line up with the second mark as the piston reaches TDC.

But it doesnt.

Its about 30 degrees out - The bike does not run by the way, although it does - fire.

Are my assumptions correct?

Does the flywheel have a key?

How do I adjust it?

Do I need a special Fantic or Dansi flywheel puller?

Anything else?

[ty250nl]

Hello,

I ride a Fantic 125 TX250 (1977/78) and have an ownersmanual (in Italian).


I can send you 2 pages by personal mail about the Flywheel.
It shed some light about the marks.

You will have to translate or read between the italian lines.


My e-mail is info@@vormtekst.nl (remove 1x @)

Kind regards.

[Lee Harris]

and aries is a VERY nice 125....

[RTM]

Lee Harris, on Nov 19 2009, 05:58 PM, said:

and aries is a VERY nice 125....

I know! He emailed me some photo's today.

Mine on the other hand is about as rough as is possible to achieve yet still be ridable.

Aries.

Thanks for the info, I removed the flywheel to find the key had sheared, hardly suprising as it was all loose.

I set everything according to instuctions and it fired up first kick. Runs like a dream.

many many thanks.

RTM

[ty250nl]

Great it all worked out so simple!

Enjoy your Fantic 125.

Kind regards,
Arie.