Yamaha YFM100 Champ rear axle
#11
Just had a little set back, went out to check the oil level in the chinese rear axle and it was grease on the stick. I can just think of two possible reasons. Either the manufacturer used grease in stead of oil or previous owner "fixed" leaking by draining the oil and fill up with grease. What do you think? The axle is identical to my other champs original axle with a oil drain plug under and a oil level stick on the top plug.
if its made by previous owner, how can i get the grease out to fill with oil again?
How bad is it to drive with grease if it should be oil? It will not drive many miles in a year.
if its made by previous owner, how can i get the grease out to fill with oil again?
How bad is it to drive with grease if it should be oil? It will not drive many miles in a year.
If the PO put grease in there cuz the original oil leaked out the seals, that makes sense. That is commonly done
with rototillers. The problem is if the grease is too thick and does not provide adequate lubrication since it does not
circulate well. What I would do is add some oil to the rear end so that it mixes with the grease to form a slurry. You may
want to drain out what you can after a few hours use, then refill with more oil. Do that when it is warm.
#12
#13
to something thicker is called for. Or change the seals.
#14
#15
#16
Yesterday I took a little time to start the project. Removed the rear end off the chinese and first thing I noticed was that the drive shaft was different. Thought that this was the end of the project when it turned out to only be one side that was different, so I could use the original shaft. Made a quick try to put it on but its ca one millimeter to small where it connects with the chassie so I will have to use a grinder. A little concerned if there will be a tension on the shaft by some reason. That will proberbly not be detecteble until it breaks?
Now Im waiting for some parts that was broken by PO but there is still good hope that this could work.
Now Im waiting for some parts that was broken by PO but there is still good hope that this could work.
#19
Not really but it was a little bit to tight at the connection to the chassie so I had to use a grinder and I didnt want to grind to much so it was many "on and off" attemps before it was right. Then the holder for the brakewire is to small so I have to think of something to fix it.
#20
After some engine issues i finally got time for a test drive and it was a succes! No strange noices and everything worked very well. So this did work.
Now I have to figure out if it is worth the time and risk to change the grease in the axle for oil or if I take a chanse and leave it as it is. Thinking about what could happen if I add a little oil and just drive, could this be worse than just let it be?
Now I have to figure out if it is worth the time and risk to change the grease in the axle for oil or if I take a chanse and leave it as it is. Thinking about what could happen if I add a little oil and just drive, could this be worse than just let it be?