Poor Fuel Mileage; Engine Will Not Idle Or Idles Roughly; Low Engine Power - Hisun HS700UTV-4 Maintenance Handbook

Poor Fuel Mileage

1. Clogged fuel system.
2. Dirty or clogged air filter.
3. Incorrect ignition timing.

Engine Will Not Idle or Idles Roughly

1. Clogged air filter element.
2. Poor fuel filter or fuel hose.
3. Faulty accelerator pump assembly.
4. Contaminated or stale fuel.
5. Incorrect throttle adjustment.
6. Leaking head gasket.
7. Intake air leak.
8. Incorrect ignition timing
9. Low engine compression

Low Engine Power

1. Support the UTV in a stand with the rear wheel off the ground. then spins freely. If the wheel does
not spin freely. Check for the following conditions:
a. Dragging brakes. Check for this condition immediately after riding the UTV
b. Damaged or binding drive system
c. Damaged drive system and gear bearing
2. Test ride the UTV and accelerate quickly from first to second gear. If the engine speed in-creased
according to throttle position. Perform Step 3. If the engine speed did not increase. Check CVT
a. Warped clutch plates/discs
b. CVT spring
3. Test rides the UTV and accelerate lightly. If the engine speed increased according to throttle
position. Perform Step 4. If the engine speed did not increase. Check for one or more of the
following problems:
a. Clogged air filter
b. Restricted fuel flow
c. Pinched fuel tank breather hose (Figure 9).
d. Clogged or damaged silencer or muffler
GENERAL INFORMATION
After riding the UTV. Come to a stop on a level
surface. Turn the
transmission into neutral. Walk or push the UTV
forward. If the UTV is harder to push than normal.
Check for dragging brakes
NOTE
engine off and shift
NOTE
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