Kolher flat twin

[dijohnson]

I have a chance to buy an flat twin in a cub. Don't know the model number. By the picture it look like it is a1975 or newer. Can't tell if it is a hydro or not. Is there any problems with the flat twins.

 

[danderson]

KT17 Series I Kohlers had oiling problems.

 

[1811Cub]

The series 1 17 HP KT17 had splash oiling. and the series 2 went to full pressure lubrication, with some having a spin on filter. All had the dreaded governor gear issue. but otherwise good powerplants.

 

[dijohnson]

were all the flat twins vertical? Most of the pics I see seem to be.

 

[scfenn]

were all the flat twins vertical? Most of the pics I see seem to be.

No, the KT-17's were horizontal and need to be to be used in a Cub's drivetrain...

 

[tfrashure]

Is it not a vertical shaft kt17 on my 1720? I usually deal with 82 series cubs and they are all horizontal with either series I or series II kohlers. Series II with presurized lubrication is a way better deal imo. Just so i know, whats the deal with governor gear?

 

[bjames]

Is it not a vertical shaft kt17 on my 1720?

I think the 1720 had a vertical shaft Magnum 18.

 

[1811Cub]

The plastic governor gear or retaining pin fails. Typically it is catastrophic.

 

[dijohnson]

What's the difference between a 1720 and a 1730. Was the 1730 a series 1.

 

[tfrashure]

Well i dont know about a 1730, but my 1720 has oil filter, pressurized lube system, i looked at it again yesterday. Pretty sure it was 17 hp Magnum. I will take a pic next time im near it.

 

[tfrashure]

Sorry it took so long. I'm not as old as a lot of you but I'm old enough computers still give me fits.