us out geuys, whats this noise on my 250 engine

[toddy]

this is my 250 big red. not sure if its the chain but just want some one with more experiance than me to diagnose the problem.

http://www.youtube.com/watch?v=WPOdWK3kwp0

MANY THANKS IN ADVANCE GUYS

[Jason125m]

Sounds like valve chatter to me, adjust your valves.

[90guy]

X2 Sounds like some good valve rattle there! Check the adjustment of the valves!

[kb0nly]

X3 Valve Noise!

[Cornholio]

Thats what my 200x sounds like.
I should adjust my valves XD

[Dirtcrasher]

That motor sounds like the valves are very loose and/or there is a possible oil to the top end issue? Not sure if it's low on oil or ever been apart. Gasket sealer can be a big issue in the rocker box with Honda 4 strokes I have worked on.

Is the oil filter in the right way??

You 200X guys: The 83-85 200X timing chain and guides make allot of noise but are all easily replaceable. Dennis Kirk has a guide kit, I'm sure other suppliers do also and use a DID timing chain.

Not expensive to do at all.....

[toddy]

Thanks guys. Im going to have a look today but may just change the engine to my 300cc trx engine

[dougspcs]

Thanks guys. Im going to have a look today but may just change the engine to my 300cc trx engine

Pretty sure there are a couple threads here about this..

Don't remember the full detail of the issues related but it isn't an easy job as I recall.

You may want to consider a rebuild of your existing..or look and see if you can find one of the aftermarket available 300cc topend kits. I remember seeing a website a few years back that still had a 250ES topend kit..maybe one of the other members still has it in their favourites since I couldn't find it.

[Jason125m]

Thanks guys. Im going to have a look today but may just change the engine to my 300cc trx engine

Seems like a 10 minute valve adjustment is a lot easier to me!

[Dirtcrasher]

That motor sounds like the valves are very loose and/or there is a possible oil to the top end issue? Not sure if it's low on oil or ever been apart. Gasket sealer can be a big issue in the rocker box with Honda 4 strokes I have worked on.

Is the oil filter in the right way??

You 200X guys: The 83-85 200X timing chain and guides make allot of noise but are all easily replaceable. Dennis Kirk has a guide kit, I'm sure other suppliers do also and use a DID timing chain.

Not expensive to do at all.....

That output shaft angle will be too far off with that swap. I think it was "trailrider" or something that did this swap and did it well....