assuming you have a stock 200B just find a reputable mechanic in your area. There simple cars so not to much that is gonna get messed up. Ask your friends if they like there local shop.
Not quite true, every datto that comes into our shop for the first time, we do a tune & check the valve timing & valve clearances.
Most older dattos have had the head gasket replaced by now & 50% of them have the valve timing out & most have tight exhaust clearances.
We even get Nissan dealers calling us and asking how to set the points on the dual point dizzys.
Yes they are basically simple & so is an SU carby. In its simlicity lies the comlexity.
So many we get with crunching synchos & hard shifting in the mornings due to service centers using
universal gearbox & diff oil. They just dont know the product.
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