← The rest of the catalogue

Blowers · part-number series 4229

BG 45, BG 46, BG 55, BG 65, BG 85

24 exploded views, 630 part numbers.

Factory tuning settings

Idle speed2,800 rpm
Max speed6,500 rpm
L screw (low speed)1 turn
H screw (high speed)3/4 turn
Confidencesourced

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.

Others on part-number series 4229

These share the powerhead, so a sheet you cannot find here may be filed under one of them. That does not make every part interchangeable — check yours.

Parts are not interchangeable across series — check yours before ordering.