Honda 250SX Starter Trouble

[kdagenais]

Hello All,
Just wanted to let you know I got my parts today and put my bike back together and it appears to be working. By replacing the one way clutch it fixed my clutch slipping problem, Kick starter, and the nasty clunk after you turn off the motor. Haven't been able to test the starter out yet cause I haven't got the new gears yet but am confident it will be fine.

The only down side I discoverd the broken teeth from the starter got to my stator and tore it up some. The good thing is it is still charging as of right now. I will try to ride it out as long as I can before I replace it.

I would like to say Thank You, to Howdy for the excellent info in helping fix my problem. This is my first post and obviously I has several issues do to this one part.
Thank You,
Keith

[Howdy]

Your Welcome. It is no problem on the help. That is why we are here.
Howdy

[jdulac]

I had posted earlier about starting problems with my 250sx and found out i had more problems than i thought. When i removed the starter which i knew was bad i also found the gears on the armature were all worn out. And also found out the 43T/18T gears had a few teeth missing on the 43teeth part. Well i got a new starter and a new 43T/18T gear but before i replace this i want to make sure i don't need one of these one way clutch pieces. Does this sound like it was caused originally by the one way clutch piece? I can kick start but sometimes the kick starter will cause it to make a clunking noise when it doesn't start. Other times it starts right up but i do need to put some pressure on it. I also noticed today when i turned it off it made a clunk sound right when it shut off. This may be a stupid question but where is this one way clutch located. Do I access it from the starter side or the kick starter side? Again thanks for your help. You guys have been great on solving these problems and i' love learning as I go.

[jdulac]

bump

[Howdy]

I had posted earlier about starting problems with my 250sx and found out i had more problems than i thought. When i removed the starter which i knew was bad i also found the gears on the armature were all worn out. And also found out the 43T/18T gears had a few teeth missing on the 43teeth part. Well i got a new starter and a new 43T/18T gear but before i replace this i want to make sure i don't need one of these one way clutch pieces. Does this sound like it was caused originally by the one way clutch piece?

Yes this sounds like a case of "Worn out one-way clutch Blues". I have seen 5-10 starters and gears sets chewed up like this.

I can kick start but sometimes the kick starter will cause it to make a clunking noise when it doesn't start. Other times it starts right up but i do need to put some pressure on it. I also noticed today when i turned it off it made a clunk sound right when it shut off.

I am willing to bet some times when starting it with the kick starter it don't turn the motor over. Correct?
Also as I have ask before I am betting when you do get it running and shut the motor off you hear a whirling noise for a bit then the clunk noise. Correct?

If so the problem is the one-way clutch. While it isn't a cheap part by itself, when you factor in the damage to the other parts it causes it only makes good sence to replace it also.

This may be a stupid question but where is this one way clutch located. Do I access it from the starter side or the kick starter side? Again thanks for your help. You guys have been great on solving these problems and i' love learning as I go.

Not a stupid question at all. It is located inside the right ( kick starter ) side ( clutch ) cover on the motor. The one-way clutch is behind the centrifical clutch ( see picture towards the top of this thread ). When you remove the kick starter & then the right side case ( clutch cover ), you will see the Clutch on the crank shaft. That is the centrifical clutch.
Howdy

[jdulac]

Thanks. For the price i may as well and replace so that i don't break any more gears and my new/old startor. PS i don't remember hearing a winding sound but i definitely hear a clunk sound when the motor stops.

[jdulac]

Ok how the heck do i get part 15 (20 mm nut) in the diagram above off because the clutch is just spinning?

[broook]

I use an impact wrench. Comes right off.
Don`t forget it is a left hand thread.

[jdulac]

Ok i replaced the one way clutch and i'm still getting the clunking noises. What else could it be? When i try to start it with the electirc start it is very loud and I'm not even sure it is turning over. I'm just finishing painted my gas tank so i still have not run it yet since putting it all together. Just afraid i'm going to chew up another starter.

[kdagenais]

After replacing the one way clutch does the kickstarter appear to be working properly know? Also where did you get the starter from (New or Used)?

[jdulac]

The kickstarter always seemed to work fairly. Its just sometimes when I kick it, it makes loud clunking noises as it reaches the end of the kick. I guess almost like its kicking back. I bought the starter used but i have tested it and it spins fine.

[kdagenais]

I assume that you replaced your starter reduction gears with a new set. If so did you grind the cover that holds them in place for the proper clearance. The directions usually come with the new gears.
Also check the starter gear 0On Starter Itself) and see if if has any slop in it. Then ensure both shafts are in place correctly and the second gear has a thrush washer on the outside (towards the cover).
The only part left is the starter clutch which is behind the flywheel under the left cover. But however as Howdy has stated in this post these are rarely bad but you never know. I do not know what to tell you to look for to see if the this clutch is bad.

[broook]

If the kickstarter isn`t slipping and she doesn`t tend to overun when slowing down with the gears it is probibly the one way clutch behind the flywheel, alternator.
You will need a torx head bit with an impact wrench to get it off the back of the flywheel. i have changed quite a few of these lately and it has cured the kickback problems and starter teeth chewups.

Good luck. I think Howdy will sell you one for a good price. The Honda price is ridiculous.

[jdulac]

I already replaced the one way clutch. I did not replace any starter reduction gears. The only one I replaced was the 18t/43t gear which had some teeth missing (this is the one that the starter spins). Which i picked up used.

[kdagenais]

the clutch brook is refering to is the one behind the flywheel (Under the left crankcase cover). This is the one I mentioned that I have no idea how to tell if it is bad or not.
Did you check the cover for the starter reduction gear that you replaced is hitting the cover. One way you could check this by taking the cover off place the gear and shaft into the cover and spin the gear to see if it hits anything. These are the only items you have left to check:
1: Clutch under flywheel
2: Placement of gears
3: Slop in starter gear
4:Starter gear housing cut out
I would check items 2 - 4 first if it is not them I would try to contact Howdy to see if he can tell you how to check the clutch behind the flywhee before you go and replace something else you might not need.
Good Luck! let us know how it turns out.