Hi

Once again, please forgive me to write in English, but my French is really bad ! I hope you can understand me. If not, I´d try with an automatic translator, but results could be even worst!

I want to show you the Project I´m involved. Looking for information in internet about this bike, I found this nice site  plenty of KTM addicts, so, I´d like to share with you my advances and troubles with this bike. I hope that one day, not very far, I can enjoy of ride it in the dirt…

The bike is a 390 81, in not very good conditions, as you can check through next pictures. The firsts steps has been dismount completely the bike and create an inventory of the problems and parts to be solved or changed..

Firstly and overall image.

As you can see, it´s necessary a full restore…this bike look to have had a  very hard live in the past



Let see some funny details which say a lot of things this bike suffered last 32 years ... 🤬 

Gear shift broken? No problem…a piece of curved tube and a welding point is enough



Need rear footpegs?...A Black Decker is the solution…



Protection for the engine? Aluminium plate? No no, it´s  to expensive…let´s go to the house in construction near and take a piece of iron..



These are a few examples..but the bike is really in very bad conditions, so, let´s take the torque wrench, a beer bottle and  a pair of hours later…






Dismounting the carburator, I found a sample of the things I ´ll found later into the engine



Emptying the oil of gear box I saw suspicious bubles…




This is what I found after dismount top end and crankcase












Nice, isn´t it?

Gearbox doesn´t work properly , but sprockets and axels looks ok so I think could be and adjust problem..( I hope, at least…)

…I will show you more advances in the future days, meanwhile, let me cry for a while.. :cry:  :cry: 

Puedo ver que tienes el primer prototipo de ktm con aqua dentro del motor. Hermoso. No mas sorpresas ?

Hi and welcome

nice to have people comming to us from other countries !

we saw a lot of KTM's in this condition, but at the end, they were brand New !

of course you have a lot of work on it,
most important thing is that your engine cases are not rotten, magnesium doesn't really like water

It seems to be a 350, old version of Zylinder and head

this is my 420 GS 80, also had a hard life



a few month later



Bye
Martin

Ktm 73 a écrit :

Puedo ver que tienes el primer prototipo de ktm con aqua dentro del motor. Hermoso. No mas sorpresas ?

MC tinmar a écrit :

most important thing is that your engine cases are not rotten, magnesium doesn't really like water

It seams to be a 350, old version of Zylinder and head

Si, pensaba que la primera KTM refrigerada por agua era del 82, pero parece que hubo algún prototipo anterior…!!!


Yes I though that 1st KTM watercooled was built in 1982, but there was a former prototype!!

No mas problemas ocultos...aparte de los habituales, rodamientos, retenes, oxido, plasticos ...

No more hiden problems...just ball bearings broken, rust, seal rings, plasctics...


Yes, I was afraid of bad relations between wáter ad magneium, but cases looks (more or less) ok…

I have to check cylinder diameter, but could be a 350 as per cylinder and cylinder head design.

In my bike , tank looks extrange for a 81 model. I saw other bikes with a smaller tank

I see that your bike originally had a Ohlins remote reservoir  schok absorbers. Did you rebuild them?

Related to frame colour I´ve seen in other topics than RAL2002 is the usual for this bikes. Did you use this colour for your frame?

erroreres excuses pour traduire le français, utilisez le traducteur google!

Just to share with you some pictures about the progress of the project

Je voudrais partager avec vous quelques photos de l'avancement du projet

Frame and other parts painted

Châssis et autres pièces peintes



Empty cases and frame painted

Carter sous vide monté sur le châssis



Rear shock absorver



Tank, after some sessions of H2O2

Dépôt après l'application de peroxyde d'hydrogène

Before

avant
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After

après







Beginning to look like a bike

commence à ressembler à une moto




I´m looking for the Plastic Tank badges (plaquettes) without success...Do you kow where could I get one?

Je suis à la recherche de logos plastique du dépôt sans succès. Vous savez où je pourrais les trouver?

Hello Kinirafa,
I'll just have a look on my used parts stock, maybe I have this but really not sure.
I'll let you know in the week to come
Pat

Great!! Please, let me know!!

R

Hello Kinirafa, I've looked  at my used parts, I was sure I had a pair of logos and unfortunately, I haven't found them back. Maybe I've already given them. Sorry for the hope... 😳 

Trop tard, il s'est pendu . ;) 

Hi Pat, thaks anyway for advise. I would be very pleased if anyone can inform me where I can get the plastic tank logos!

Merci pour l'avertissement. Je serais très reconnaissant si quelqu'un pouvait me dire où se les procurer

 :cry:  :cry:  :cry: 

those logos are NOT plastic ones, they are alloy and made by Acerbis.
Don't be too happy, those pictures are quite old and I remember now, I've sold them about one year ago to Martin.
Sorry, I really don't know where you could buy this...

Cette fois ci, il a sauté par la fenêtre.  😂  😂 

 😄  😄  😄  😄 mé nan!!!

i sent you a private mail

Finally I could get the logos through  Jan Jan. Thanks!! 👍 

Engine is mounted...Will it work?

enfin trouvé les losgos par jan jan

Le moteur est monté,





And after a couple of saturday afternoons, it begins to look like a bike

et après une couple de samedi après-midi, cela commence à ressembler à un vélo


Forgive french google translator!!
 😳 

mhhhh très belle machine!!! 👍  👍  👍 

Hello raffa
I need to rebore the cylinder to fit the new piston
Thanks again for the parts you sold me
Very very correct price and very fast shipping
Je recommande a tous mes amis français 😂 

Bravo Kinirafa  😂   😂 

Trés belle cette moto ! ❤️ 

This weekend I´ve continued fixing some issues before to try to start again the engine

Firstly, checking electricals conections. Now spare plug Works! I hope that timing have been set correctly..

I´ve filled the engine with oil and I´ve not detected any leaks, great!

And finally, I´ve mounted some plastic parts just to see the effect...and of course, to share with you the progress. Look nice!

waow, it'll be a great bike now!!!  👍 

I´d like to share with you the final result of the Project. Now, The KTM has return to the dirt!!! I hope you like it.

wonderful  👍  👍  👍 
très belle moto , et en plus elle va rouler dans les chemins  🤭

good job  👍  👍  👍  👍  👍  👍  yeahhhhhhhhhhhhh

Joly good job !

good job raffa  😂  😂  😂