Quote:
Originally Posted by NickyRudolph
Now, i can tap from the .9 m5 to a .8? Or should I go up a measurement to the next biggest metric screw?
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I wouldn't recommend retapping M5 JIS threads with M5 ISO threads. The difference in thread pitch would result in overlapping and weaker threads.
It's quite easy to drill out the old threads and re-tap with M6. I used a cheap set of metric taps from Harbor Freight and it worked perfectly. If you've tapped threads before you'll find it to be quick work. If this is new to you, check out some YouTube videos on tapping threads for some pointers and examples to make the work easier.
I can't imagine how motorbikes were restored in the days before eBay and YouTube. I recall we'd go to swap meets and exchange parts request cards with smelly guys with beards. I'll take eBay.