1982 yamaha yz125 wrench report

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2/28/2013 7:40 AM
Edited Date/Time: 2/28/2013 7:42 AM

I finally found the wrench report for the 82 yz125. Just thought I would share.

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2/28/2013 7:55 AM

I also found this.

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2/28/2013 8:08 AM

And This

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2/28/2013 8:19 AM
Edited Date/Time: 2/28/2013 8:20 AM

Nice. I had one for the 81 YZ 125. If I remember correctly it gave cylinder porting specs, I think head mod specs, how to fit the Yamaha Boost Bottle off a YZ 250 and to fit a 38mm Mikuni with jetting specs. Bike woke up big time. Wish I still had both the wrench report and that bike.

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2/28/2013 8:25 AM

@qtrracer-There is a little info here. http://vintagechat2.tripod.com/YZ_DATA_SHEETS.pdf

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2/28/2013 8:46 AM

Brett Campbell wrote:

@qtrracer-There is a little info here. http://vintagechat2.tripod.com/YZ_DATA_SHEETS.pdf

Thanks. I remember back when I had my '81 YZ 125 and after it had been modified to the wrench report specs, my brother and I swapped bikes at the track 1 Saturday. He had a Jim Felt built YZ125 with a 36mm Mik, we both agreed that my bike had a tad bit more throttle response than his and his had a tad bit more high rpm pull than mine but they were both miles faster than a stock 125 H.

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2/28/2013 11:52 AM

Nice, those wrench reports can be elusive these days. Qtrracer, those
125H's were great bikes, keepers for sure!

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3/2/2013 11:31 PM

do you have know where to find Wrench Reports for other Yamahas also?

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3/3/2013 6:18 AM

@MaxPower-After months and months of seaching the net, I couldn't find the wrench report for this bike. I got lucky after purchasing a service manual and someone had them in the back of the book. I did find other years during my search.

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3/3/2013 10:49 AM

If I remember correctly those wrench reports were distributed thru the dealer network to be given/used by the dealer supported riders. I remember those wrench reports being hard to come by 30 years ago and I didn't share any wrench reports that I received with any other racers.

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11/24/2014 8:41 PM

This is so cool !! Glad I found it. I am currently working on a YZ125J project myself, and getting close with it now. Will post pics up once it is complete.

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November 13th, Forever in our memories !!