This will be quite a long post, to see it all, click “Continue reading” below. A while back I promised that we would upload a walkthrough on rebuilding the carburetors, here it is! This is a rebuild of the AS1/AS2 version of the carburetors, but the AS3 and most other versions are similar. To view a larger version of any picture, click on it.
It’s been a while since I last added a new manual to the site. Today’s manual cover engine service. The manual itself was made for Yamaha retailers and mechanical workshops so it covers more advanced methods that the regular service guides.
We get a lot of emails with questions about crankshaft assembly, hopefully this will be able to help with those questions and a lot more. The manual is quite early, from 1965 so it covers specifics about older models, in particular the YG1, the YJ1, the YA6 and the YDS3. The methods used work for later models too. Anyway, go to the manuals section or click the link below to view the manual, as always: right click and select
Engine Service Manual
Now we’re there: the final part of the AS3 Europa walkthrough. This time we’re covering the exhaust, the side covers for the engine and frame, the wires and finishing touches all around. Hopefully the whole series have been of help. We haven’t gone into all of the details everywhere, they will follow as separate walkthroughs. The most important of these will be assembling the engine block and the carburetors.
If you’re disassembling one of these bikes, just follow the order in reverse and you should be able to do it relatively easily.
We’re approaching the final installment in our AS3 walkthrough. In this update we cover some of the additional bits of the engine assembly, up until the carburetors are set to go on the bike. Parts to pay extra attention to this time is the kick spring assembly and the side logo cover assembly (we have covered it before but it is still important to get it right for the overall look).
We continue with the AS3 Europa walkthrough: this time we’re covering parts of the handle and meter assemblies with a few other parts on the bike which makes this update kind of hard to categorize.