Posts
131
Joined
6/13/2017
Location
Sneads Ferry, NC
US
Warning: long rambling explaination.
Backstory: fresh top end with about 1 hours of break in consisting of heat cycles then easy riding.
Friday night arenacross practice bike ran awesome. Engine sounds great and no issues.
Today puting along with my wife on a little muddy track and after about 30-45 mins bike loses power in second gear and cuts out. Tapped the starter and it turns over so I figured maybe I stalled...Happens again. push it back to the truck thinking maybe it overheated because of the mud. 20-30 mins later, I start it again and notice it cuts off at high rpm. Take it home and while washing it I found my left, top subframe bolt just sitting by the air filter box. So I start looking around and notice the air boot is a bit off the throttle body, but did not seem to be enough effect much.
About 2 hours later, went back to the garage and fixed the boot. Pulled off the valves cover to make sure the valves were in spec and timing is good. Everything looked good so I reassembled and started it. Seems to run great now, but I’m hearing what I think is the cam chain tensioner making a ton of noise. See video and let me know what you think please!
Engine Vid
Backstory: fresh top end with about 1 hours of break in consisting of heat cycles then easy riding.
Friday night arenacross practice bike ran awesome. Engine sounds great and no issues.
Today puting along with my wife on a little muddy track and after about 30-45 mins bike loses power in second gear and cuts out. Tapped the starter and it turns over so I figured maybe I stalled...Happens again. push it back to the truck thinking maybe it overheated because of the mud. 20-30 mins later, I start it again and notice it cuts off at high rpm. Take it home and while washing it I found my left, top subframe bolt just sitting by the air filter box. So I start looking around and notice the air boot is a bit off the throttle body, but did not seem to be enough effect much.
About 2 hours later, went back to the garage and fixed the boot. Pulled off the valves cover to make sure the valves were in spec and timing is good. Everything looked good so I reassembled and started it. Seems to run great now, but I’m hearing what I think is the cam chain tensioner making a ton of noise. See video and let me know what you think please!
Engine Vid
The Shop
Post a reply to: 2016.5 Ktm 250sxf engine noise/issues