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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Bobcat turns over but rarely starts then runs excellent
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<blockquote data-quote="craigb93" data-source="post: 105967" data-attributes="member: 4541"><p>Start with the suggestion above and verify that the ignition timing is correct-10degrees BTDC and that the vacuum advance diaphragm is not leaking and therefore functional. After that the carburetor main jet and the immulsion tube must be cleaned. Both of these can be cleaned with the correct size number drill. DO NOT enlarge either one, just be sure they are clean and restored to their original size. Ethanol fuel will leave a scale deposit that reduces the orifice size and thus a too lean mixture. Carburetor cleaner does not remove deposits like this. Whether your carburetor is a Zenith updraft like mine or a different brand, the cleaning method is the same. -Dick [The tube has 6-holes across plus the main tube itself. Don't overlook cleaning the anti-dieseling solenoid on the carburetor bowl inlet if so equipped.]</p></blockquote><p></p>
[QUOTE="craigb93, post: 105967, member: 4541"] Start with the suggestion above and verify that the ignition timing is correct-10degrees BTDC and that the vacuum advance diaphragm is not leaking and therefore functional. After that the carburetor main jet and the immulsion tube must be cleaned. Both of these can be cleaned with the correct size number drill. DO NOT enlarge either one, just be sure they are clean and restored to their original size. Ethanol fuel will leave a scale deposit that reduces the orifice size and thus a too lean mixture. Carburetor cleaner does not remove deposits like this. Whether your carburetor is a Zenith updraft like mine or a different brand, the cleaning method is the same. -Dick [The tube has 6-holes across plus the main tube itself. Don't overlook cleaning the anti-dieseling solenoid on the carburetor bowl inlet if so equipped.] [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
Bobcat turns over but rarely starts then runs excellent
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