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FJR Motorcycle Forums
Technical & Mechanical Problems
Finished loosening throttle spring.
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<blockquote data-quote="3dogs" data-source="post: 352634" data-attributes="member: 424"><p>Don't worry about the throttle not returning to the closed position when the engine is not running. Engine vacuum will pull the throttle plates shut when running. When I taught high school autoshop many years ago. I used a running engine and carburetor to demonstrate the power of engine vacuum. With a V8 engine running and the nuts that secure the carburetor removed I asked the "kids" to try an pull off the carb. I was nearly impossible because the carb was being "sucked" on to the intake manifold. The throttle plates in your FJR will be sucked closed when you roll off the throttle even if the return spring has less tension.</p></blockquote><p></p>
[QUOTE="3dogs, post: 352634, member: 424"] Don't worry about the throttle not returning to the closed position when the engine is not running. Engine vacuum will pull the throttle plates shut when running. When I taught high school autoshop many years ago. I used a running engine and carburetor to demonstrate the power of engine vacuum. With a V8 engine running and the nuts that secure the carburetor removed I asked the "kids" to try an pull off the carb. I was nearly impossible because the carb was being "sucked" on to the intake manifold. The throttle plates in your FJR will be sucked closed when you roll off the throttle even if the return spring has less tension. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Finished loosening throttle spring.
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