All.
This is the thread where I will put the general progress of my Savage build. I use to do it like this, on forums, so that I have an archive of my work.
This forum is an increadible resource of information, the fact that I could find info on the carburettor fix for the lean idle and low needle range helped me to get the bike running well. For a short period, now it is inside the workshop, waiting s couple of mods.
The forum will save me a lot of grief due to the procedures outlined regarding the protusion of the cam tensioner, as seen in the attachment.
Now that the cover is off, I will also beef the clutch up to DR650 standards.
The oil pump gears will also get a reverse treatment.
Lancers Mikuni carburettor is ready on the shelf, and I am pondering how to weld a nice airbox for the accompanying filter.
A used, but good cylinder head is on the way, and I will try my hand on some porting work.
I have been studying flow benches recently, and it would appear to be not all that difficult to get started with some reasonable gear.
There is a good forum called flowbenchtech.com, where there is some really usefull information on the working of flow benches.
There is also a spreadsheet to calculate the size of the needed orifice plates to measure the flow rates.
https://www.flowbenchtech.com/forum/viewtopic.php?f=14&t=73I have learned that it is a good idea to make silicone rubber casts of the port you want to modify, and use it to create a plaster model of the head, and then try the modifications on the plaster model, before getting carried away and potentially ruining a perfectly good cylinder head in the process. I also imagine that getting the port shape out in the open, in the shape of a rubber plug, can give some intuitive input as to where it might be beneficial to alter it. It has been said somewhere, that the inlet tract should converge all the way from carburettor to valve seats.
This should all be keeping me busy for the coming very dark months up here at 56deg. lat.