I upgraded the brake calipers on the FZR 600 to Yamaha blue spots that I got for 50 euros, so I had a spare pair of 4 piston calipers going spare. I thought I would get them to fit the 350, they are not a straight fit, the 350 calipers are 83-84mms between mounting holes and the FZR calipers are over 100 mms. I had a good think about different plate systems and eventually went for a flat plate with spacers behind it. The most difficult part of this is to get the correct amount of pad on the appropriate part of the disk.
The second most difficult part is to ensure the bolt holes are exactly in the right place, if they are more than a 10th out it won't work smoothly!
Well it took more than 3 attempts to get it right! The first time I tried it I only had the fork leg and calipers - no relation with the disk and wheel. The second time the disk to pad relation was still a little out.
I worked this through with templates however the cardboard cutouts only go so far... You can't get good accuracy with a cardboard template!
The third time lucky! I will fit them tomorrow and then clean up the ally, only then will we really know!
The second most difficult part is to ensure the bolt holes are exactly in the right place, if they are more than a 10th out it won't work smoothly!
Well it took more than 3 attempts to get it right! The first time I tried it I only had the fork leg and calipers - no relation with the disk and wheel. The second time the disk to pad relation was still a little out.
 |
| First attempt |
I worked this through with templates however the cardboard cutouts only go so far... You can't get good accuracy with a cardboard template!
The third time lucky! I will fit them tomorrow and then clean up the ally, only then will we really know!
Still all this gave me ample time to use the mill, lathe and plenty bench grinder!
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