FE450 2005 bogging

Taffy said:

that engine is rattling!

slightly bent valves will do what is happening to your bike. the trouble is, they can break a valve spring which the owner replaces. he looks at the valve and says that it 'looks OK' but they are bent.

then they sell the bike because they don't want to remove the head again and they don't know what is wrong.

bent valve is my best shot. with a 182MJ you shouldn't have a bog anywhere.

it certainly won't be the slide plate and the rubber O ring and it won't need a squirt of fuel.

regards

Taffy

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Hello Thaffy,

I hope it is not about valves
So do i have to replace all valves or only bent?

Bjorn said:

Poor bike!! Going buy the snow on the ground, outside temp is cold, try riding the bike for a bit with the choke on and allow the bike to warm up properly before trying to ring its neck. No gloves or outdoor clothing looks like youve just wheeled it out and fired it up, she wont behave if thast the case.

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I warmed up the bike properly. Rode 10 min and recorded video.

What i did to bike before,

I am currently riding 2 stroke and fe450 is reserve
I went to a sand race with this bike bu not raced only practiced. Later tight mud riding with friends.

Just cleaned and prepared to next ride. When i ride the bike again, i feel something wrong on bike. It was backfiring and was working lean. I see manifold cutted by clamp. It could be the problem. I have not been replaced it. I decided to make it SuperMoto and parapered a part list. List also had freewheel.

I made a mistake, when trying to install freewheel. Kickstart spring throwed but i could not understand. See it, when i finished all jobs. Again i removed everything.

I was mad and i forgot adjust timing notches. I puched the elecktric start and it was not rolling. Piston kissed valves i think. I said f..kkkkk. Thank goodness! my battary was so low and old so it was not rolled powerfull. Made compression test and compression was good.

Changed manifold rubber, cleaned carb and setted, checked valve clerance.

Bike was in good condition while the last sand-mud riding.

Today i backed to old settings. Needle clip to 3rd ohhhh it was soo leannn. I need to full open iddle screw. Backfiring Also tested without airfilter, so oilyfilter, full closed fuel mixture. Still lean.

Thanks to everyone.

Update

Just found a 42pj and installed it with 3 1/5 fuel screw turnout. 6th needle clip. It is still lean but working good.

Just look at those videos. But still wonder with taffy's words about valves.

http://youtu.be/iSEVPMq2Frk