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GEN4065 4000 Surge Watts/3250 Running Watts Portable Generator  

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TABLE OF CONTENTS 
 

RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS............................................................................................................................................................... 4 
 
PACKAGE CONTENTS  
 PACKAGE 

CONTENTS........................................................................................................................................................................................................ 9 

 COMPONENTS .................................................................................................................................................................................................................. 10 
 
PREPARING THE GENERATOR FOR USE .................................................................................................................................................................................... 11 
 

Using This Generator For The First Time ........................................................................................................................................................................... 11 

 

 

Step 1 – Add Oil ...................................................................................................................................................................................................... 11 

 

 

Step 2 – Add Gasoline ............................................................................................................................................................................................ 12 

 

 

Step 3 – Ground The Generator ............................................................................................................................................................................. 12 

 

Subsequent Use Of This Generator ................................................................................................................................................................................... 13 

 

 

Step 1 – Verify Oil Level.......................................................................................................................................................................................... 13 

 

 

Step 2 – Verify Gas Level ....................................................................................................................................................................................... 13 

 

 

Step 3 – Ground The Generator ............................................................................................................................................................................. 13 

 
STARTING THE GENERATOR ........................................................................................................................................................................................................ 14 
 
USING THE GENERATOR ............................................................................................................................................................................................................... 15 
 AC 

Usage............................................................................................................................................................................................................................ 15 

 DC 

Usage ........................................................................................................................................................................................................................... 17 

 
STOPPING THE GENERATOR........................................................................................................................................................................................................ 18 
 
MAINTENANCE/CARE ..................................................................................................................................................................................................................... 18 
 Recommended 

Maintenance 

Schedule.............................................................................................................................................................................. 18 

 

Cleaning The Generator ..................................................................................................................................................................................................... 18 

 

Checking The Oil Level....................................................................................................................................................................................................... 19 

 Changing/Adding 

Oil........................................................................................................................................................................................................... 19 

 

Air Filter Maintenance......................................................................................................................................................................................................... 20 

 

Spark Plug Maintenance..................................................................................................................................................................................................... 20 

 

Emptying The Fuel Tank..................................................................................................................................................................................................... 20 

 
STORAGE/TRANSPORT PROCEDURES ....................................................................................................................................................................................... 21 
 
TROUBLESHOOTING ...................................................................................................................................................................................................................... 22 

 

THIS ENGINE MEETS U.S. EPA EMISSION STANDARDS UNDER 40 CFR 1054.625 . 

 

The emission-related warranty is valid for two (2) years. Keep the purchase receipt and mail in the product registration card for proof of purchase.  

NB Corp limits emission-related warranty repairs to authorized service centers for owners located within 100 miles of an authorized service center. 
For owners located more than 100 miles from an authorized service center, NB Corp will, in its sole discretion, either pay for shipping costs to and 

from an authorized service center, provide for a service technician to come to the owner to make the warranty repair, or pay for the repair to be made 

at a local non-authorized service center. The provisions of this paragraph apply only for the contiguous states, excluding the states with high-altitude 

areas identified in 40 CFR part 1068, Appendix III. 
 

To exercise this warranty, DO NOT RETURN TO RETAILER. Instead, call Customer Service toll free at 1-866-460-9436 (email address 

info@buffalotools.com) and you will be instructed on where to take the engine for warranty service. Take the generator and proof of purchase (your 

receipt) to the repair facility recommended by the Customer Service Representative. The warranty does not extend to generators damaged or 
affected by fuel contamination, accidents, neglect, misuse, unauthorized alterations, use in an application for which the product was not designed 

and any other modifications or abuse.  

 

90 DAY LIMITED WARRANTY   

 

Generators are warranted to be free from defects in materials and workmanship for a period of 90 days from date of original purchase. NB Corp. is 

not liable for any indirect, incidental or consequential damages from the sale or use of this product. Any implied warranties are limited to 90 days as 

stated, or as otherwise stated, in this written limited warranty. Some states do not allow the exclusion or limitation of incidental or consequential 
damages. Some states do not allow limitation on the length of an implied warranty. NB Corp will repair or replace, at its discretion, any part that is 

proven to be defective in materials or workmanship under normal use during the 90 day warranty period. Warranty repairs or replacements will be 

made without charge for parts or labor. Parts replaced during warranty repairs will be considered as part of the original product and will have the 

same warranty period as the original product. This warranty gives you specific legal rights, and you may have other rights that vary from state to 
state. 

 

Meijer.com

Summary of Contents for GEN4065

Page 1: ...that may occur We reserve the right to change this product at any time without prior notice IF THERE IS ANY QUESTION ABOUT A CONDITION BEING SAFE OR UNSAFE DO NOT OPERATE THIS PRODUCT DO NOT RETURN TH...

Page 2: ...ts 3250 Running Watts Portable Generator FEATURES 4 Stroke OHV Engine Recoil Start 6 5 HP Gasoline Engine Automatic Low Oil Shutdown 2 120 Volt A C Outlets 1 12 Volt D C Outlet 4 Gallon Fuel Tank Engi...

Page 3: ...contiguous states excluding the states with high altitude areas identified in 40 CFR part 1068 Appendix III To exercise this warranty DO NOT RETURN TO RETAILER Instead call Customer Service toll free...

Page 4: ...ons you do not understand This is the safety alert symbol It is used to alert you to potential personal injury hazards Obey all safety messages that follow this symbol to avoid possible injury or deat...

Page 5: ...SECURE THE GENERATOR WITH A CHAIN OR ROPE AS THIS WILL MAKE IT DIFFICULT TO MOVE IN AN EMERGENCY Keep at least several feet of clearance on all sides to allow proper ventilation for this generator Che...

Page 6: ...least several feet of clearance on all sides of this generator during operation Do not enclose this generator in any structure Usage Misuse of this generator can damage it or shorten its life Use this...

Page 7: ...GEN4065 4000 Surge Watts 3250 Running Watts Portable Generator 7 Meijer com...

Page 8: ...65 4000 Surge Watts 3250 Running Watts Portable Generator 8 In addition to the previously described safety information familiarize yourself with all safety and hazard placards on this generator Meijer...

Page 9: ...able Generator Verify that all items are included STOP If there are missing items call 1 866 460 9436 Monday Friday 8 AM 4 PM Central Time for customer service DO NOT RETURN THIS GENERATOR TO THE RETA...

Page 10: ...nd controls of this generator 9 AC Circuit Fuse 10 AC Circuit Fuse 11 120 Volt AC Output Socket 12 120 Volt AC Output Socket 13 12 Volt DC Output Socket 14 DC Circuit Fuse 1 Fuel Tank Cap 2 Control Pa...

Page 11: ...nkcase The correct quantity of oil is equal to the oil capacity of the engine crankcase and is 20 fluid oz 0 59 L for this Model GEN4065 4000 Surge Watts 3250 Running Watts Portable Generator Add the...

Page 12: ...ecause gasoline can expand do not fill the fuel tank to the very top 4 Securely tighten the fuel tank cap and immediately wipe up any spilled gasoline with a dry cloth Model GEN4065 Fuel Tank Capacity...

Page 13: ...vel currently in the fuel tank If necessary add fresh unleaded gasoline with an octane rating of 87 or higher according to Step 2 Add Gasoline of the Using this Generator for the First Time section of...

Page 14: ...sized cord can overheat short out and cause a fire Usage Do not use fuel stabilizers with this generator doing so could cause damage to the generator or decrease the fuel and operating efficiency of t...

Page 15: ...total wattage of the selected devices exceeds the rated wattage of the generator DO NOT connect all of the devices Select a combination of the electrical devices that will have a total wattage less t...

Page 16: ...lt outlet Connect 12 Volt DC loads to the 12 Volt outlet Even though this generator has an overall rated wattage of 4000 do not attempt to draw more than 3500 Watts from the 120 Volt outlet Draws high...

Page 17: ...enerator Failing to use the correct procedure can cause a battery to explode seriously injuring anyone nearby Keep heat sparks flame and smoking materials away from the battery To connect 12 Volt batt...

Page 18: ...ocedures according to the schedule in Figure 7 Never perform maintenance procedures while this generator is running Allow this generator to cool before commencing any maintenance procedures Keep heat...

Page 19: ...ery 100 hours of use time The oil capacity for this Model GEN4065 4000 Surge Watts 3250 Running Watts Portable Generator engine is 20 fluid oz 0 6 L To drain the oil from this generator It is necessar...

Page 20: ...and install a new spark plug A F6TC spark plug such as NGK BPR5ES is recommended 4 Measure the spark plug electrode gap with a gauge The gap should be 0 028 0 031in 0 7 0 8mm See Figure 9 5 If re usin...

Page 21: ...trouble persists call our customer help line at 1 866 460 9436 Monday Friday 8 AM 4 PM Central Time Symptom Cause Solution Engine switch is set to off Set engine switch to on Fuel valve is turned to c...

Page 22: ...GEN4065 4000 Surge Watts 3250 Running Watts Portable Generator 22 GEN4065 4000 SURGE WATTS 3250 RUNNING WATTS PORTABLE GENERATOR PARTS DIAGRAM Meijer com...

Page 23: ...som 2 17 Bolt GB T5789 M6 12 8 18 Tank Cock 1 19 Fuel Pipe 1 20 Muffler Guard Cover 1 21 Bolt GB T5789 M6 16 2 22 Muffler 1 23 Bolt GB T16674 M8 20 3 24 Muffler Bracket 1 25 Nut GB T6184 M8 12 26 Engi...

Page 24: ...GEN4065 4000 Surge Watts 3250 Running Watts Portable Generator 24 GEN4065 2011 08 Meijer com...

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