Bring a 704 back for the grave

[Chrishar 686]

Working on fixing and cleaning the motor its not the right motor but it will work for right now it's a 8hp not a 7hp 

[rjg854 12,173]

8 or 7 still the same block just a different bore.

[kpinnc 14,608]

4 hours ago, Chrishar said:

Working on fixing and cleaning the motor its not the right motor but it will work for right now it's a 8hp not a 7hp 

 

No one will ever know the difference. 

[Chrishar 686]

Work a little on the 704 got the motor bolted on and some other stuff put on too have a question does it used a fuel pump on the motor or not 

[kpinnc 14,608]

6 minutes ago, Chrishar said:

question does it used a fuel pump on the motor or not 

 

Even though the fuel tank is mounted pretty high, a fuel pump of some type works best. It will keep the fuel supply consistent in the least. 

 

Kohler mechanical pumps are pretty good. You can't go wrong with the correct OEM pump for that engine. 

 

Electric pumps are good if you get a high quality version, but the hard part is finding a decent one with the correct pressure. 1 or 2 psi works best, and too much pressure can force fuel into the crankcase which will destroy the engine. 

[Chrishar 686]

Thanks for the information 

[Chrishar 686]

Drive belt and guard and engine pulley are done I put a temporary 704 sticker on for now 

[WHX?? 51,728]

8 hours ago, Chrishar said:

does it used a fuel pump on the motor

OEM depends on the the spec. If a service motor probably not. One was to use the pump off the old motor. Wouldn't hurt to have one but most likely would need a vacuum style or the type with the offset lever. 

Edited Wednesday at 01:36 PM by WHX??

[Handy Don 14,030]

On the round hoods, the tank is just about even with the carb. On my ’68 LR with a Tecumseh, there was no fuel pump so once the fuel level got to about ¼ tank, going up a decent pitch would starve the engine–my signal to refill the tank!

[squonk 43,752]

On 7/23/2025 at 10:45 AM, Handy Don said:

On the round hoods, the tank is just about even with the carb. On my ’68 LR with a Tecumseh, there was no fuel pump so once the fuel level got to about ¼ tank, going up a decent pitch would starve the engine–my signal to refill the tank!

Yup. My 704 had a bad pump and about a 1/4 tank it would quit.