HF 98cc Flathead
- Thread starter Otto
- Start date
bigbutterbean
Active Member
Go to Harbor Freight's website and compare that engine to the 79cc Predator. If the specs match, the agk or the ezm will work. If they dont, then I'm not sure.
Otto
New Member
I have done that, and they don't match. That was the reason for my question. I would like it to work due to the small size of the flathead compared to the OHV version, plus it's 98cc compared to 79cc. Maybe someone will come forward that knows the answer. I'm guessing the difference is due to the specs of the water pump that is attached. The standard PTO probably didn't fit the pump.
Where did you get your 98cc flathead? Thanks for the input BBB.
Home Depot may carry this motor.
LIFAN 2.5 HP Side Valve Recoil Start Horizontal Shaft Engine
http://www.homedepot.com/webapp/wcs...ct-5-_-202184119-_-203281925-_-N#.UMy4wKyxmSo
Specs claims the following:
5.6:1 gear reduction for medium-torque applications
Must be an error.
LIFAN 2.5 HP Side Valve Recoil Start Horizontal Shaft Engine
http://www.homedepot.com/webapp/wcs...ct-5-_-202184119-_-203281925-_-N#.UMy4wKyxmSo
Specs claims the following:
5.6:1 gear reduction for medium-torque applications
Must be an error.
bigbutterbean
Active Member
This is the engine I have. The 5.6:1 gear reduction recommendation is not an error. This engine comes with a governor installed, and has a max rpm of 3600 with the governor installed. 5.6:1 @ 36k rpm for medium torque applications (water pumps, pressure washers, etc) sounds about right. However, you most likely would not want to use it on a bike with the governor left intact. With the governor removed, it should be able to hit 5k rpm at least.
Otto
New Member
BBB do you have your reduction drive for this engine yet? Which one are/will you use with it?
MotoMagz
Well-Known Member
http://motorbicycling.com/showthread.php?t=42475 this is my current build same motor.
The flathead should have more low end torque than the OHV, a very good thing for a single speed drive.
Velodrome
Well-Known Member
And mine http://motorbicycling.com/showthread.php?t=43336 Has not been put into a bike yet but Im planing about 12:1 reduction for quicker getten goin. Im not fussed about top speed especially with this very extra legal size motor in my state. Dont wanna draw too much attention.