Check out the TwinMax Electronic Carburetor Balancer. There are more details and instructions.

TwinMax

Peak efficiency is a goal that is seldom obtainable. However, the Twinmax system, an electronic differential depression gauge will get you to peak efficiency. A carburetor and fuel injector throttle body balancer. Light, compact, transportable and accurate to 1mm of mercury. Works on all engines with multiple carburetors or throttle bodies, not just motorcycles. Don't leave home without it.

Adapters

If you specify the motorcycle type at checkout, you will receive two of the correct size adapters (if required) with the Twinmax. The basic configuration (no adapters) is good for all BMW models with vacuum ports (All Bing CV carbs and fuel injected bikes). To simplify balancing engines with more than two carburettors, order extra adapters and jumper hoses. 5mm and 6mm adapters allow the basic Twinmax configuration to be used with the larger ports found on some carburettors and throttle bodies, while jumper hoses each block off two ports while you are balancing others.

	Product Name+	Price
	TwinMax	$99.95
	TwinMax 5mm Adapter	$3.00
	TwinMax 6mm Adapter	$3.00
	TwinMax Jumper Hoses	$3.00

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