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Need help?Do you have a question about the Dolmar PB-251.4 and is the answer not in the manual?
Read and follow manual, use with care, avoid alcohol/drugs, do not use when tired.
Wear functional clothing, no jewelry, long hair secured, head, eye, hand, foot protection.
Sturdy clothing, ear protection, gloves, eye protection (goggles/safety glasses).
Ensure safe distance from people/animals, no urban areas, check throttle/lock/I-O switch.
Align grooves, slide pipe onto housing, turn clockwise to lock.
Install vacuum pipe/nozzle and elbow/dust bag correctly.
Check oil level on a flat surface, refill if below limit, use recommended oil.
Keep oil gauge clean from dust/dirt to prevent wear and ensure circulation.
Wipe any spilled oil with a rag.
Follow sequence: stop switch, primer pump, choke lever, starter handle, warm-up.
Release trigger lever, set stop switch to "0" or use cruise control.
Set low-speed rotation to 3500 rpm; adjust screw to change speed.
Hold firmly, use trigger/cruise control, use fuel tank as assist handle.
Do not suck foreign materials, empty dust bag, carry bag on shoulder.
Drain oil when cool, refill to correct level, follow interval.
Remove cover, clean element (sponge/felt) with water or gasoline, dry thoroughly.
Check/clean plug, adjust electrode gap (0.7-0.8 mm), use specified type.
Check fuel filter, clean with gasoline if contaminated, replace if necessary.
Retighten loose parts, check for leaks, replace damaged parts.
Wipe engine clean, remove dust/dirt from cylinder fins.
Replace gaskets and packings when the engine is disassembled.
Remove tank cap, drain fuel, operate engine until stopped, add oil to cylinder.
Check primer, fuel, starter rope, spark plug, carburetor, etc.
Check choke lever, fuel filter, air cleaner, carburetor, throttle wire.
Check fuel filter, air cleaner, carburetor, drive system.
Check stop switch, throttle wire, electric system, connector.
Operating hours for meeting Federal emission requirements (Category C, B, A).
Information on emissions performance and durability for California regulations.
Warranty applies to all states except California, covering defects causing non-conformity.
Warranty begins on sale date and continues for a period of 2 years.
Lists parts covered by the Emission Component Defect Warranty.
Take engine to authorized service center with sales receipt.
Excludes tampering, misuse, accident, failure to use recommended fuel/oil, etc.
Responsible for required maintenance, retain receipts, present engine for service.
Responsible for maintenance, keep records, use authorized parts for warranty repairs.
Notify Dolmar Warranty Service Department for defective emission-related parts.
Explains emissions control system warranty for small off-road engines.
Emissions control system warranted for two years; defective parts repaired or replaced.
Perform maintenance, retain receipts, present engine to service center promptly.
Details warranty period, coverage, and interpretation for emissions-related parts.
General
