1_badger

<p>Hi mate, the 510 case is close but no good, the cut off saw doesn't have the chain oiler facility.</p>

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<p>I don't think you will find it will be an issue with the crankcases to be honest, ive never had, seen or heard any issues with them.</p>

<p> The fuel tank is totally separate from the crankcases and is in the pull start unit. 051's will fit but are slightly smaller but direct replacement.</p>

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<p>So by your message you have spark if its spluttered. They are prone to flooding so make sure you have a dry plug in it. The way I start them after they haven't been started for a while is no choke, lock the throttle pin on part throttle, pour a small amount of fuel in the top of the carb (about a tablespoon) and pull it over and they tend to fire in the first 2 or 3 pulls.</p>

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<p>Where do you live? I assume your not local to me? </p>

<p>You say spark chip? Im assuming you mean you have replaced the trigger unit with a module?</p>