For the first time, we are offering the client who wants a fully built system with a reputable affordable mini 4-stroke engine. A package that has a great price point and is hand built. These systems below come in only one configuration for maximum durability. No corners are cut on assembly. This is why we ask to give us a week for build time turn around. Customers who ask for cutomization in this process will extend this order to ship time. The engines are warrantied by Lifan USA for 1 year, and the engine legs are warrantied for 1 year against manufaturer details. See warranty page for details.
LIFAN Power USA’s LF139F-2 is a 1.5HP , 35cc Industrial Grade OHC Gasoline Engine. CARB Certified Models Available.
We fully support the LF139F-2 with our Warranty Policy.
LF139F-2 Features:
- 1.5MHP OHC Clutch Drive
- 360 Degree Horizontal or
Vertical Mount
- Single Cylinder Air-Cooled
- Recoil Start
- 0.17 Gallon Fuel Capacity
- Runs in any position
- Low Oil Engine Shutdown
Protection
- CARB Approved (-CA
Models Only)
Orignal small lightweight aluminum outboard leg with stainless hardware.
*Added:
- Shimano SRAM 6 speed
shifter with teflon lined
cable sheath.
- Billet connections with
grease boot for better
throttle response, cable
replacement capable,
cable clamp, and stainless
braided cable.
- 2 Blade prop with stainless
collar, which allows for
cleaner acceleration on
larger crafts and full use of
the RPM range on the
engine.
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* These parts are included and installed before the leg ships out. All original equipment removed for the upgrade is shipped with the built unit.
Lifan Engine Manual
Lifan Engine Webpage
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* Shipping rules will not
allow gas and oil to be
added before shipping.
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** Shipping is additional and
will be billed separately.
*** PLEASE INQUIRE BEFORE ORDERING MULTIPLE UNITS
On all 4 stroke engines, it is imperative that you cycle the engines through full warm up and then for about 15 minutes (half throttle). Let the engine cool down and repeat the same procedure 2 more times and check oil levels. During this process cycle the throttle and rev it up occasionally and back to idle. Once complete, a load consisting of you driving the watercraft at varying throttle speeds in longer durations and positions helps seat rings and wear in the cylinder and sleeve for a long life. I would not run wide open immediately to allow the rings to seat properly. Working the throttle up to 3/4 is fine when initially breaking in the engine.
Check the oil level immediately and fill up to the upper level if needed. 30 weight oil works great in the warmer climates. Adjust weight if necessary depending on season. It is common for a bit of oil to be burnt as it will bypass the rings as it breaks-in.
Once you have a few hours on the engine, I normally fully drain all 4 strokes and refill them with new oil. Fresh oil is the key to engine longevity. Never run the engines on the low mark on the dipstick. Engine damage and seizing will occur. Protect the investment. Always check oil levels before and after every trip to maximize life on all size powerheads. Don't void warranties by being careless. No low oil shut-off switches are found on these small 4 strokes with the exception of the Honda GXV50 engine and now the Lifan 35cc we carry. The larger 5 hp and up vertical engines commonly have this feature and a much larger oil sump. The safe zone for all Honda and non-branded small 4 strokes is to check your oil everytrip, and top off after a day of hard run time.