2005 Honda CRF 450 R "rattle top end engine" Questions

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Question about Honda CRF 450 R Motorcycles

2 Answers

Top-end rattling after it heats up, assume its piston slap. Is it time for rebuild? Do you recommend to rebuild head as well (valves and seats)? First, let's assume that the valve tappet clearances ...

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Question about Honda CRF 450 R Motorcycles

1 Answer

...top end rattle at speed limit and above . it was 1200 kitted before i got it so dont know much on engine history. engine has plenty of power and dose not use oil. have replaced lifters and checked ...

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...top end speed and have a loud rattle type noise from front of engine at top end speed. I have changed intake manifold, ignition coil, Adjusted valves, cleaned carburetta, changed oil, new ht lead and ...

Question about Honda CRF 450 R Motorcycles

2 Answers

...top end damage, where is most of the rattle sounds coming from? Sounds like the cam guides have been worn down and now rattle due to running low on oil. Look into tearing down and rebuilding engine ...

Question about Honda CRF 450 R Motorcycles

1 Answer

rattle in top end There is a rattle in the top end at highway speeds seems to vary with engine load, few years ago i put a new head gasket and replaced the cam chain guide, thought that would take ...

...rattle top or bottom end? Easy way to pin point the noise is to use a long flat blade screw driver have the bike running and put the end (screw end) against the bottom of the engine then push the ...

Question about Honda CRF 450 R Motorcycles

2 Answers

...Rattle generally means detonation, which will destroy your engine. How quickly that will happen depends on the severity of the detonation. You can cure detonation by retarding the timing, cooling the ...

Question about Honda CRF 450 R Motorcycles

1 Answer

...rattle in the engine, it is usually excessive piston to wall clearance, also known as piston slap. If your compression is low, around 100 psi or less, you should tear down the top end and measure the ...

Question about Honda CRF 450 R Motorcycles

1 Answer

...rattle is high up on the right side of engine all i know about these bikes is that they dont have the usual valve train and use a gear systems instead. it could be possible that there is a problem ...

Question about Honda CRF 450 R Motorcycles

2 Answers

...rattle, they should be pumping oil upstairs. Of course, the oil drains back down to the bottom end rather quickly. The oil to the tappets comes from the oil pump up through the cam cover. Just ...

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