Camal Posted July 18, 2021 Report Share Posted July 18, 2021 Does anyone know what generally causes a engine breakup at 50 to 100% throttle Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 18, 2021 Report Share Posted July 18, 2021 Need more info. I assume you mean a misfire under load. If it only does it as load is increased then it would most commonly be a lack of ignition energy to jump the plug gap at high cylinder pressure. But it could be a huge range of things such as it going too lean due to a fuel supply issue or something like a restriction in the intake or exhaust. Quote Link to comment Share on other sites More sharing options...
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