Author Topic: CR250M kick start mechanism  (Read 2773 times)

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Offline c_stewart

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CR250M kick start mechanism
« on: May 03, 2015, 04:41:25 pm »
Hey all,
I have recently finish assembling my rebuilt 74 CR250M engine however when I try to kick it over the kick start slips. If I take the spark plug out the kick start works fine but as soon as there is any resistance from compression it just slips. Ive read that installing a MT250 gear set can help the situation as the gears are a better quality? I've also noticed the shaft coming through the side cover has a bit of play so I might sleeve the side cover, is there anything else I'm missing or am I heading in the right direction to resolve this problem?

Cheers
Chris

Offline bigk

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Re: CR250M kick start mechanism
« Reply #1 on: May 03, 2015, 05:42:03 pm »
Sounds like you need a new kick start pawl, maybe have a look at it first. They a NLA form Honda but I have some new ones here if it turns out to be the problem.
K

Offline bazza

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Re: CR250M kick start mechanism
« Reply #2 on: May 03, 2015, 06:22:15 pm »
Pawl
Once you go black  you will never go back - allblacks
Maico - B44 -1976 CR250- 66 Mustang YZF450,RM250
Embrace patina

Offline c_stewart

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Re: CR250M kick start mechanism
« Reply #3 on: May 04, 2015, 07:47:49 pm »
Thanks for the response, I'll definitely check it out.
I'll let you know how I go BigK, I think the poor thing has copped some abuse over the years, judging by the state of the kickstart lever, I think someone has tried to start it with a seized piston at some point!

Offline c_stewart

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Re: CR250M kick start mechanism
« Reply #4 on: May 08, 2015, 07:25:11 pm »
Spot on about the pawl, its snapped at the base!

When I pulled the engine down I found a little nub of steel in the bottom of the cases and couldn't for the life of me figure out where it came from... now I know!!

How much do you want for a new pawl BigK?

Offline bigk

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Re: CR250M kick start mechanism
« Reply #5 on: May 09, 2015, 10:26:41 am »
$20 plus post.
Cheers,
K

Offline Digga

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Re: CR250M kick start mechanism
« Reply #6 on: May 09, 2015, 11:36:35 am »
Nice workshop action shot with God's finest Pale Ale in the background  ;D
1977 Yamaha YZ250D, 1977 Yamaha YZ400D, 1980 Yamaha YZ125G

Offline c_stewart

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Re: CR250M kick start mechanism
« Reply #7 on: May 23, 2015, 07:13:24 pm »
So I ended up buying a NOS pawl and installed it tonight but the kick starter still slips  :(
I guess the next step is to replace the inner/outer pawl housing and see if that helps?