Mistblowers · part-number series 4244
SR 430, SR 450 · BR 350, BR 430
22 exploded views, 508 part numbers.
SR 430, SR 450
Factory tuning settings
| Idle speed | 3,000 rpm |
| Confidence | sourced |
Set the final mixture by ear and tachometer against the machine in front of you — running a two-stroke lean to hit a published number is how pistons get scored.
BR 350, BR 430
Factory tuning settings
| Idle speed | 3,000 rpm |
| Max speed | 6,500 rpm |
| L screw (low speed) | 3/4 turn |
| H screw (high speed) | 3/4 turn |
| Confidence | sourced |
Screw figures are turns open from lightly seated. Set the final mixture by ear and tachometer against the machine in front of you — running a two-stroke lean to hit a published number is how pistons get scored.
Parts are not interchangeable across series — check yours before ordering.