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| Re: How to identify twin hitachi carbs |
Subject: Re: How to identify twin hitachi carbs
by ddgonzal on 2019/6/25 6:39:05
Hitachi sidedraft carbs (SU-style) are almost exactly the same A-series and L16/L18 versions
The material differences are:
* L-series has stronger Suction Spring
* A and L use different needle valve
And the practical difference is in the throttle linkage. A uses cable linkage, L uses rod linkage (as far as I have seen)
There are only two Suction Springs. So that's an easy change. However there are many needle valves.
* I would change the spring and just run the L valve to start with. There are many adjustments you can make. The A valve is for a stock-spec GX engine (hi-rpm, large port)
* If you have totally orginal GX or A12T engine (including the cam and exhaust system) then it would be worth sourcing the GX/A12T needle valve #M75
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