CRF 2003 engine death rattle.
I have just finished a days racing, at intermediate level. The engine has developed a death rattle, causing me to obtain my first DNF of the season. I have not pulled it apart yet, and was wondering if there was any point contacting Honda.
The bike is brand new! Done about 3 hours hard racing. Only. But about 20 hours playing (Gentle). It’s had 3 oil filters and 6 changes.
The bike still pulls well, we dropped the oil which looks fine.
I rarely hit the limiter, and generally run low in the rev range.
The death rattle (harsh vibration) happens at about 7,000 to 8,000 RPM (guess), and is particularly evident as the revs decrease after blipping the throttle (no load).
Any ideas? I have heard about intake valves problems, but only in the states. See link.
http://www.off-road.com/dirtbike/projects/crf450/kibblewhite/
Anybody have anything similar happen?
Apparently “people” have had the conrod small end ovalise on the YZF, does this happen to the CRF? I would not expect anything to make this type of racket whilst the motor is so fresh.
Should I pester Honda? Before I inspect the engine?
Please please help, I’m worried.
Thanks
Dan
I have just finished a days racing, at intermediate level. The engine has developed a death rattle, causing me to obtain my first DNF of the season. I have not pulled it apart yet, and was wondering if there was any point contacting Honda.
The bike is brand new! Done about 3 hours hard racing. Only. But about 20 hours playing (Gentle). It’s had 3 oil filters and 6 changes.
The bike still pulls well, we dropped the oil which looks fine.
I rarely hit the limiter, and generally run low in the rev range.
The death rattle (harsh vibration) happens at about 7,000 to 8,000 RPM (guess), and is particularly evident as the revs decrease after blipping the throttle (no load).
Any ideas? I have heard about intake valves problems, but only in the states. See link.
http://www.off-road.com/dirtbike/projects/crf450/kibblewhite/
Anybody have anything similar happen?
Apparently “people” have had the conrod small end ovalise on the YZF, does this happen to the CRF? I would not expect anything to make this type of racket whilst the motor is so fresh.
Should I pester Honda? Before I inspect the engine?
Please please help, I’m worried.
Thanks
Dan