It was well past midnight when Silas bolted the Mikuni BS25 back onto the cylinder head intake. He hooked up a auxiliary fuel IV bottle, primed the float bowl, and turned the key. He pulled the choke lever and thumbed the starter.
The starter motor churned. Once. Twice. On the third rotation, the engine barked to life, settling into a high, smoky idle. Silas let it warm up for a few minutes, watching the heat bloom off the exhaust header. Then came the real test. mikuni bs25 carburetor diagram patched
This is the "brain" of the CV carb. Located under the top chrome or plastic cover, this rubber diaphragm must be free of holes or tears. If it’s "patched" with sealant, it’s likely to fail; replacement is always better. 2. The Jet Needle and Needle Jet It was well past midnight when Silas bolted