Nakayama PRO GS8600, Manual

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Problem

Possible cause

The engine won’t start.

Is the ignition switch in the “ON” position?

Is the fuel shut-off valve on?

Are you using fresh, clean gas? If the gas is old, change it. Use

a fuel stabilizer if you 

keep gas longer than 30 days.

Is the spark plug clean? If the spark plug is dirty or cracked,

change it. If it’s oily, 

leave it out, hold a rag over the plug hole and pull the recoil cord several times to 

blow out any oil in the cylinder, then wipe off the plug and reinsert it.

The engine lacks power or is not 

running smoothly.

Check that the 

t

hrottle 

l

ever is in the “Run” position.

Is the air filter clean? If it’s dirty, change it. Is the spark plug clean? If it’s fouled or 

cracked, change it. If it’s oily, leave it out, hold a rag over the plug hole and pull your 

recoil cord several times to blow out any oil in the cylinder,  then wipe off the plug 

and reinsert it.

Are you using fresh, clean unleaded gas? If it’s old, change it. Use a fuel stabilizer if 

you keep gas longer than 30 days.

Does your engine have the right amount of clean oil? If it’s dirty, change it following 

the procedure in the engine manufacturer’s owner’s manual.

Check the oil level and adjust as needed.

Too much smoke

Check the oil level and adjust as needed.

Check the air filter and clean or replace if needed.

You may be using the wrong oil—too light for the temperature. Refer to your Engine 

Owner’s Manual for detailed information.

Clean the cooling fins if they’re dirty.

Machine does not seem to have 

full chipping power.

The belts may be too loose and slipping. Adjust or replace belts as need.

Troubleshooting

Technical Data

Model:

GS8600

GS9600

Engine Type:

OHV 4 Stroke

OHV 4 Stroke

Power:

6.5Hp

15Hp

Max. Cutting Diameter:

80mm

120mm

Starting System Type:

Recoil starter

Recoil starter

* The manufacturer reserves the right to make minor changes to product design and technical specifications without prior notice unless these changes significantly affect the performance and safety of the 

products. The parts described / illustrated in the pages of the manual that you hold in your hands may also concern other models of the manufacturer's product line with similar features and may not be 

included in the product you just acquired.

* To ensure the safety and reliability of the product and the warranty validity, all repair, inspection, repair or replacement work, including maintenance and special adjustments, must only be carried out by 

technicians of the authorized service department of the manufacturer.

* Always use the product with the supplied equipment. Operation of the product with non-provided equipment may cause malfunctions or even serious injury or death. The manufacturer and the importer 

shall not be liable for injuries and damages resulting from the use of non-conforming equipment

.