Question1982 xt550 - This quit on me while going 50 MPH or so - felt as if it lost a bit of power, bogged down a bit then quit.
I kick started it while still rolling, WOT'd it, a couple of times in 3rd gear, to ensure it was still solid vs. seizing...felt solid, but lacked full power.
It made some "clanking" sounds - I let it cool, started it, and can hear the same clanking - But it still starts, while popping and sputtering a bit. . .
I have adjusted the valves, and may need to revisit this as it's my first time doing so.
My question: Is there a common issue with these having top end issues?
I instantly thought: sucked a ring, or something bent in the valve assembly.
I have little experience with 4 stroke maintenance, but a lot with 2 strokes. (Rebuilt several, bored, etc. . .)
Any help you can offer is great.
I have the original Yamaha owners & Service manual.
Please advise if you have experience with this bike.
It has ~ 3-4K miles, mostly off road -
Answerblaine,
its sounds like to me you have a bad valev or broke valve spring take off top end lookj at valve or run a compression test to see it it holds compressioin. then contact me again ,i will get you going i guarantee you,
p.s please leave feedback on my answer and you can also nominate if you choose to ok,
mitch kruszynsky