ATK

ATK

ATK

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Removed the 17 tooth MZ sprocket

Removed the 17 tooth MZ sprocket

Test fitting the countershaft mounted brake disc, caliper and bracket. Measuring to make the necessary spacers which are missing.

Test fitting the countershaft mounted brake disc, caliper and bracket. Measuring to make the necessary spacers which are missing.

Frame cleaned and the nickel plating hand polished. Mmm, shiny. Yellow tube is so you can see the oil level at a glance.

Frame cleaned and the nickel plating hand polished. Mmm, shiny. Yellow tube is so you can see the oil level at a glance.

Weighs 23 lbs. bare

Weighs 23 lbs. bare

Tried to put the frame onto the engine like I did with the KTM 504 frame - works about half the way. You still have to set it upright and lift the (98 lb.) engine in the rest of the way.

Tried to put the frame onto the engine like I did with the KTM 504 frame - works about half the way. You still have to set it upright and lift the (98 lb.) engine in the rest of the way.

A slight snag - the front mount on the frame kits the starter motor mount. A little clearancing with the die grinder was necessary.

A slight snag - the front mount on the frame kits the starter motor mount. A little clearancing with the die grinder was necessary.

Then I was missing the spacers for the front mounting bolt. One is 14mm thick and the other 8mm. Used a chunk of 3/4

Then I was missing the spacers for the front mounting bolt. One is 14mm thick and the other 8mm. Used a chunk of 3/4" 6061 aluminum to make those on the lathe.

Like the Prego commercial used to say,

Like the Prego commercial used to say, "it's in there!".

Made the missing spacers to mount the caliper bracket and plugged the oil pressure sender hole (the sender would hit the bracket).

Made the missing spacers to mount the caliper bracket and plugged the oil pressure sender hole (the sender would hit the bracket).

Test fitting the disc again.

Test fitting the disc again.

Wow. Doesn't leave much room for the swingarm pivot nut.

Wow. Doesn't leave much room for the swingarm pivot nut.

Another view of the spacers.

Another view of the spacers.

Made two more spacers to mount the caliper.

Made two more spacers to mount the caliper.

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Tried to put the frame onto the engine like I did with the KTM 504 frame - works about half the way. You still have to set it upright and lift the (98 lb.) engine in the rest of the way.

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Tried to put the frame onto the engine like I did with the KTM 504 frame - works about half the way. You still have to set it upright and lift the (98 lb.) engine in the rest of the way.