Blog category
Knowledge Base
Practical knowledge for owners of mini tractors and compact machines. From buying advice and maintenance to troubleshooting and seasonal tips — everything you need to keep your tractor running reliably for years to come.
06/07/2026
Buying or rebuilding a Kubota 05 series engine? Read what to look out for with the D905 through V1505: power, operating hours, compression, smoke behaviour, overheating and when a rebuild kit or complete cylinder head is smarter than a whole new engine.
06/07/2026
Buying a Yanmar Super Forte AF-22 to AF-33? Read the experiences, strengths and weaknesses, the engine differences between the models, and what to look out for when buying used.
06/07/2026
Kubota 05 series specifications and torque settings at a glance: per-model technical data from D905 through V1505, common characteristics, the complete torque table, and how to tighten the cylinder head bolts in sequence up to 64-68 N·m.
06/07/2026
Yanmar Super Forte AF won't start, losing power, or running hot? Go through the known faults — from battery and bleeding to overheating.
06/07/2026
Kubota 05 series maintenance step by step: the complete maintenance schedule with intervals, which oil and viscosity to use, oil capacity, replacing filters, and the correct V-belt tension. Keep your D905 to V1505 running healthy for a long time.
06/07/2026
The complete maintenance schedule of the Yanmar Super Forte AF series from the manual: all intervals by operating hours, plus the adjustment values for belt, clutch and brake.
06/07/2026
Overhauling the Kubota 05 series: when overhauling is smarter than replacing, removing and installing the cylinder head with the correct head bolt sequence and 64-68 N·m, valve clearance, top clearance and what's included in an overhaul kit for D905 to V1505.
06/07/2026
Mastering Kubota 05 Series cooling: how the cooling system works, why overheating is the number one cause of failure, and how to prevent it. Water pump, thermostat, radiator, coolant and the correct antifreeze ratio for D905 to V1505.
06/07/2026
Which filters does the Yanmar Super Forte AF series have? Air, oil and fuel filter with sizes and intervals — plus the correct filters per model.
06/07/2026
Kubota 05 series fuel and starting explained: how the fuel system works (feed pump, filter, Bosch MD injection pump, injectors), the correct injection pressure and timing, bleeding the fuel system, and proper preheating and cold starting for D905 through V1505.
