You may have contaminted fuel, a dirty nozzel, or you may need to replace the fuels. Insufficient air flow also can cause this. You can go the manufacturers webite a www.desatech.com . They offer service manuals that should be able to assist you. Thank you
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You may have contaminted fuel, a dirty nozzel, or you may need to replace the fuels. Insufficient air flow also can cause this. You can go the manufacturers webite a www.desatech.com . They offer service manuals that should be able to assist you. Thank you