[martin80]

Hello i am from the Netherlands en have a problem with my Honda crf450x 2005. I bought the bike with the problem and hope i can solve the problem.

The problem is that when i move the kickstart you can here the e-start screaming... So because this is my first crf450x i looked at the internet what might be the problem. I hope to fix the problem.

I moved the cover at de kickstart side and replaced the starter clutch (old one was oke but i had already ordered a new one so put it on). I checked the pressed gear and seems to be alright. I tried to turn the 2 wheels but there are not separated.

When i move the kickstart without the cover you can see that the wheel of the starter turns around. When i move the bike in 3rd gear you also here the same noise from the starter.

I don't know what the guy where i bought the bike from has done whit the engine... he says that the bike was ok and by using the estart the problem was there and he didn't looked at it any further because he had no time. I don't know if he worked at the engine, because it was very clean and some new bolts are on.. maybe he did open the engine and put it not correctly together en did not had the motivation to work at it any longer.

I really hope someone can give me any idea where to look because i don't now where to look anymore.

sorry for the bad English...

martin

[JimDirt]

Welcome to the site !!

So you replaced the One Way Bearing and it still turns the starter motor correct ?? ...... , what happens when you try to start the bike with the E-Start ??? , does it still make the noise when running ?? , does the starter motor engage the engine and turn it over ?? , or just free spin ?? ....... Is it possible that the prior owner put the one way bearing in backwards and you installed the new one the same way ?? , the bearing when installed in the correct direction should be able to turn freely counter clockwise , but be locked up going clockwise .... , when assembling , the one way clutch should have some blue paint to mark the outside , when you install the clutch in the housing , the paint should be visible , then you install the snap ring , etc. , to me the issue sounds like it is something to do with the starter clutch/one way bearing

Here is some reference from the Factory Service Manual , hopefully it helps ... , I will be gone riding most of the day , but will be around in the evening if you still need help ..... you did not mention if you have a Service Manual or not , so not sure what you referenced when assembling ...

[martin80]

Hello Jim,

Thanks for your information..
Yes i replaced the one way clutch inclusive the outer, bearing needle etc. The parts where already installed when arrived and i put it on. I just checked the old one which is doing ok and it turns smooth at counter clockwise. The new one does the same and so i have the same problem after replacing the one way clutch. So i think both one way clutches are ok and are right installed before and after replacing.

Because the accu is death i jump start it (before i replaced the clutch and open the cover) with another accu and cable right on de starter the motor does engage and turns over and makes no strange noise. I haven't start the engine any further because i don't know what will happen when it starts maybe i make more damage. But i even don't know if it starts because i bought the bike not working.

So there is even no free spin when using the e-start.
I have a owner workshop manual and looked at many you tube videos searching what might be the problem and how to replace the parts.

I truly thought that it was de one way bearing that's why i ordered one.

I haven't done anything whit the starter because i think its ok.
i put the cables right on the starter because it didn't worked putting the cables on the old accu for a start.

martin

[JimDirt]

Did you try to wobble the clutch basket to see if it moves side to side ?? , I am wondering if the clutch basket may be binding the gears or something ..... From your first description , I was almost certain it was the one way bearing , as it seems you did as well ......

There has to be something that is causing the one way bearing to engage somehow , as that is the only way the starter can turn , as the one way bearing is engaged with centrifugal force , when the starter turns it , then once the starter stops , the bearing should return to a non engagement position ...... So just to eliminate and isolate the issue , I know it will be a pain , but try removing the starter , you do not need to completely remove it , but just pull it back far enough so the gear does not engage , then try the kickstart and see if it does the same thing and makes the same noise , this will confirm that one of the gears in the starter clutch system is what is making the noise from the starter clutch engaging , the clutch and the corresponding gears are the link between the starter motor and the ring gear on the clutch , it will not mean the starter is bad , but what it will do is take it out of the chain of parts , if the noise/issue stops , then it has to be in the starter clutch or the gears that go with it

Look at the surface of the collar where the starter clutch rides , where I have the red arrow pointing , make sure it does not have ridges or feels bumpy , it should be perfectly smooth and perfectly round , if you have a Caliper , try to run it all the way around , to make sure there is no deviation in roundness , if it is misshapen , it may be keeping the starter clutch engaged .... Follow ??

[martin80]

I had some time and worked at the crf. I removed the starter-motor and cover at the clutch side en moved the kickstart. The sound is much better. Then i removed the pressed gear en there was no noise. I turned the wheels between de pressed gear en starter with my finger and the wheels turn easily en don't make a scary sound just a sound which you wont hear when de cover is on.

So i think where back at the starter clutch... I cant move de starter clutch by hand. I don't no if that ok?
Das the one way clutch have to move one way easily by hand when everything is installed except the cover?

thanks again

[martin80]

I searched on the internet and found a video where someone turns the starter-clutch when installed.. The starter-clutch of my bike does not turn when installed. The old one which seems to be OK had the same problem. The starter clutch which is installed now is new and complete with outer, one way bearing enz not only the bearing.

Is there something what can block the starter-clutch?
When there's no solution i am going the removed the clutch again and hope that i can find the problem...

thanks

[duacnoo]

When initiating the kickstarting process of a dirt bike, the pivotal first step involves confirming that the bike is positioned in neutral gear. Subsequently, for initiating a cold start, proceed by exerting upward force on the choke knob; alternatively, when dealing with a warm start scenario, employ the hot start lever.