Here's what happens to my car:
When I first bought it (from the second owner), I tested it in 10' and it ran fine. But then I realized that when I run it for about 40 mins, it starts vibrating and shaking and kangarooing. if I press the clutch and rev the machine as before it viberates , it will stall. It's just like the machine starts losing power or something. After the point of shaking, the temperature drops from near 90 (normal temp) to around 80, and stay like that until I turn off the machine. If I turn off the machine and leave it there for like 4 hours, the machine runs fine again until it reaches it 40-min limit. And my clutch visibly shakes as well.
2 days ago, it got worse. Now it starts shaking and viberating right when I ignite the machine. And, of course, runs rough like hell. At first I thought it was about the spark plugs, so I changed 4 new ones but that didn't help. My fuel is full, and I cleaned the dust filter.
Right now I'm thinking about lambda (after searching the internet for hours). What do you think?
When I first bought it (from the second owner), I tested it in 10' and it ran fine. But then I realized that when I run it for about 40 mins, it starts vibrating and shaking and kangarooing. if I press the clutch and rev the machine as before it viberates , it will stall. It's just like the machine starts losing power or something. After the point of shaking, the temperature drops from near 90 (normal temp) to around 80, and stay like that until I turn off the machine. If I turn off the machine and leave it there for like 4 hours, the machine runs fine again until it reaches it 40-min limit. And my clutch visibly shakes as well.
2 days ago, it got worse. Now it starts shaking and viberating right when I ignite the machine. And, of course, runs rough like hell. At first I thought it was about the spark plugs, so I changed 4 new ones but that didn't help. My fuel is full, and I cleaned the dust filter.
Right now I'm thinking about lambda (after searching the internet for hours). What do you think?