I wonder if it is a good idea to fit an oil seal in the guide valves to avoid some oil in the chamber combustion...?. There exist some from Norton with similar interior size. It only needs to mechanize the guide. Does anyone have any idea or sugestions about it?
If you look at the two lines on the left picture posted by Carl you can see that the space at the lower end is greater than at the top this is where the 20mm comes from.
Therefore I understand that 1.5 yokes "close" the steering and shorten the distance between axles. My tiger cub with montesa forks (parallel yokes, centred axle) feels quite heavy and does not turn very well. From the information that I got, it seems that a Tiger cub with original frame goes better with 1.5 yokes. According to Carl explanation, I guess a more closed steering makes it lighter in front and facilitates turning...
I recently got a 1961 tiger cub. Unfortunately the front fork comes from a Montesa. I would like to go to scottish pre 65 2 days trial. Which front fork can I get suitable for this trial ? I read something about marzocchi hydraulic fitted into an original forks ?...
Valve guide oil seal tiger cub
in Pre-65 Bikes
Posted
Yes, that was my concern. Iron valves and bronze guides perhaps need this extra amount of oil...