Author Topic: 1978 YZ250 flywheel puller  (Read 709 times)

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Offline carnut68

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1978 YZ250 flywheel puller
« on: January 05, 2018, 09:06:04 AM »
Can anyone tell me what size flywheel puller I need? Every place I look says M27X1. L.H. and that's to big I would appreciate any help!
Thanks,
Don

Offline Cooky375

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Re: 1978 YZ250 flywheel puller
« Reply #1 on: January 05, 2018, 04:31:34 PM »
I may be very wrong but I think it is a 18mm x1.5 RH ext thread. Somebody will correct me if I’m wrong.
Cheers

Cooky

Offline fred99999au

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Re: 1978 YZ250 flywheel puller
« Reply #2 on: January 05, 2018, 07:16:22 PM »
The M27x1 LH puller works with an external rotor and the other one works with the YZ style internal rotor.

M18x1.5 seems to be the go. I'll find my puller and measure it.

Offline Martin I Henry

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Re: 1978 YZ250 flywheel puller
« Reply #3 on: January 06, 2018, 05:58:39 AM »

I thought it might be M20x1.5..... Same as my YZ125E item.

But I could be wrong.

Cheers,

Dave R.

Offline fred99999au

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Re: 1978 YZ250 flywheel puller
« Reply #4 on: January 06, 2018, 11:30:57 AM »
According to my trusty pocket ruler, it looks like 18mm. This puller I made for a YZ250G engine.

Offline Martin I Henry

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Re: 1978 YZ250 flywheel puller
« Reply #5 on: January 07, 2018, 06:35:55 AM »
I'm a bit confused.......




Cheers,

Dave R.

Offline carnut68

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Re: 1978 YZ250 flywheel puller
« Reply #6 on: January 08, 2018, 05:49:05 PM »
Thanks, I appreciate it very much!