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My Fantic 241 wreck


beton
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Hello all,

I am Ton from the Netherlands and recently bought a Fantic 241 Trial is quite a sorry state... The piston has a piece missing from the top edge and the piston ring has a piece missing. The barrel itself seems to be oke. My plan is to make the bike technically sound first before restoring it completely.

I have been looking for a piston for some time now and I can find 3 piston brands that can supply a 69mm piston;

- Asso Werke (original piston)

- Vertex

- Pattern

The Asso piston is becoming rare and fairly expensive! Are the other 2 brands any good, or should I stick with the original piston?

The bike:

Foto-8ZRZ3VHC-D.jpg

The piston:

Foto-EIEOBUPC-D.jpg

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  • 4 weeks later...

Many thanks to Lee Harris and his Dutch friend!

My package with the barrel and piston arrived this week in good condition. Now all I have to wait for is for my gasket set to arrive from the UK.

I want to assemble the engine and try to get it going before spending too much money on this bike. As I don't have a workshop manual for this bike and cannot find it anywhere, are there specific issues I need to take care of assembling the engine, like:

Is there a certain order for torqueing down the head nuts?

What is the torque anyway?

Is there a specific method or tool to install the piston on the conrod?

Do I need to use liquid gasket somewhere?

What kind of oil should I use and how much?

What is the right spark plug?

Any other bits I should replace while I am at it?

Sorry for all the questions... hope someone can help me before I mess something up.

Any other tips and tricks are more than welcome!

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