125 HVA LEJ 1st liquid cooled

First water cooled cylinder in '77? Prototype? What took Husqvarna so long to change.

Being water cooled allowed for a change in port timing which produced more power but more heat which the water cooling took the heat away.

Ford and international harvester used this system with no water pump also.

As this LC evolved with different proto types I can see a problem with the water cooled head only. The cylinder and head expanded at different rates. Maybe warpage if the cylinder got hot enough. Then they cooled the cylinder and the head.
These guys were smart. They lead the industry in development.

first one 1977

the last one

2 champions !!!

Bryll,

Do you ever see Lars-Erik ? I rode Roger Harveys 1977 works 125 Husky for a while when he was injured. It had a very special engine that I'd love to know if he worked on it, as a have a lot of questions about it ?

Cheers Steve

I have not been there for a long time, but I can give him a call and ask if you want me to ?

I would appreciate that if you could.

The bike was built for Roger Harvey (British 125 GP Rider) for the 1977 GP's. It had a twin reedblock. One in the barrel and one into the crank case. I'd love to know if it was him who developed the engine ? I rode it a couple of times in British Schoolboy championships, when Roger was injured and it was so fast. Here in the UK, my dad who worked for the main Husqvarna Importer (Brian Leask) tried to replicate the set up, but we couldn't get the crank cases to seal properly and the engine kept seizing.

Takk sa mykke.
Steve

I'm sorry, but I have been quite busy and forgot to call Lars-Erik.
Will try to remember to give him a call later this week.
Don't think he was involved in that motor, but I will check with him so we know for sure.

Found this picture when looking for other things at google

Would appreciate it if you did find out as its been on my mind for 40 years !!!

https://www.facebook.com/peter.hansson.104/videos/1870158576336317/

Great ! It looks like a 125 LEJ from Belgium....

last NOS parts LEJ