Cub Cadet 105 Hydrostatic Resto

[Odmark]

Originally Posted by Billy-O

Did you check the timing? I'm wondering if you tampered with it in replacing parts and such.

Regarding your compression test... The requirements:
https://www.onlycubcadets.net/forum/showthread.php?t=10

To set timing by feeler gauge:
https://www.onlycubcadets.net/forum/showthread.php?t=14

Or, more accurately:
https://www.onlycubcadets.net/forum/...ead.php?t=4405

No i only adjusted the breaker points. I will try and set the timing and see if that fixes it. Thanks!

[Billy-O]

Originally Posted by Odmark

No i only adjusted the breaker points. I will try and set the timing and see if that fixes it. Thanks!

If you adjusted the breaker points, you've adjusted the timing! What did you adjust the breaker points to?

[Odmark]

Originally Posted by Billy-O

If you adjusted the breaker points, you've adjusted the timing! What did you adjust the breaker points to?

Oh okay lol, i didnt check the links yet. I set the points gap to 0.5mm, just a little less than 0.020".

I will try setting it with a multimeter later this week and see if that helps.

Otherwise, is there a way to do a proper compression test on a Kohler?

[Odmark]

I got some garage time today after all, i tried setting the points to about 0.017" instead. And after some cranking the engine actually tried to fire so I guess I'm closer to the timing the engine likes.

I was going to set it with a multimeter but couldn't for the life of me find the damned sight hole!! I'm probably just stupid, but could anyone point me in the right direction?

[R Bedell]

You can set the timing anywhere between .015 to .020 inches (.38 to .51 mm). Pick the spot where the engine runs the best.

[West Valley G]

Till you figure out they camouflaged those sight holes they can be a bit
tricky to spot. Take your time even if it takes several tries and make sure
your points open at the precise time you see the S line in the sight hole.
Then that variable will perfect and not part of the ignition equation.
Here is a look at the sight hole. Right under the rear bolt holding your
starter/generator. Hidden behind the little yellow plug.

KenDSCN2127.jpg

DSCN2128.jpg

[Odmark]

Originally Posted by West Valley G

Till you figure out they camouflaged those sight holes they can be a bit
tricky to spot. Take your time even if it takes several tries and make sure
your points open at the precise time you see the S line in the sight hole.
Then that variable will perfect and not part of the ignition equation.
Here is a look at the sight hole. Right under the rear bolt holding your
starter/generator. Hidden behind the little yellow plug.

KenAttachment 110100

Attachment 110101

I tried to pry on that little plug but couldnt get it loose so i figured that was just an embossment in the metal, lol Thank you! Then i will try setting the timing that way to be 100% sure.

[Odmark]

Tonight i tried setting the timing to 0.020" (really 0.020" this time) and did the multimeter check, and it was spot on! Reinstalled spark plug and it just would not fire.

Pulled spark plug and checked spark, nothing. Turns out I got a little debris on the electrode so the plug would not fire. Cleaned it up, reinstalled and sprayed some starter fluid in it, and it fired right up!

Also it drives both forward and backwards, which is nice!


Now it will idle but not perfect, I probably need to adjust the carb some (Chinese knockoff). What screws are what? I read that there is an air mixture adjustment screw as well as an jetting screw, but not which is which.

[Odmark]

Found instructions for and did a baseline adjustment today and now it runs very good!!

Drove it for about 2km on road just for fun, lol.

Now im just waiting for some parts from CCS and then it will be ready for summer use, and I will continue with the 128.

Then the 105 will get some love again next winter.

[West Valley G]

Great, glad you got it on the road. Sometimes I have to take one of mine
to the mailbox just to get some work for them.

Ken