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Run away mower

#1

S

Saddle Tramp

I just rebuilt the carb on a Tecumseh LV195EA - 6.5 hp engine on a Toro mower. When I started it up it really took off but now is running at very high RPM. I didn't change the governor setting to my knowledge. Any thoughts on what could be the cause would be appreciated!


#2

R

Rivets

Hooking up the linkage between the governor arm and the throttle wrong is probably the cause. The solid linkage goes in the top hole of the governor arm and the linkage with the spring goes in the second hole.


#3

S

Saddle Tramp

Rivets said:
Hooking up the linkage between the governor arm and the throttle wrong is probably the cause. The solid linkage goes in the top hole of the governor arm and the linkage with the spring goes in the second hole.
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I thought about that and checked it earlier before I posted, but I'll check again in the morning. I also wondered if I could have accidentally moved the gov arm while removing the carb or reinstalling it. I appreciate the suggestion and am glad to take anything I can get from an instructor.


#4

R

Rivets

One thing I forgot to add is that the other end of the solid link goes in the hole on the throttle plate farthest away from the governor arm.


#5

S

Saddle Tramp

Rivets said:
One thing I forgot to add is that the other end of the solid link goes in the hole on the throttle plate farthest away from the governor arm.
Click to expand...

OK, but there's a lot of holes in the throttle plate. I'd put a picture on if I knew how.


#6

R

Rivets

After you hook it up, check that with the engine off the throttle should be wide open, but you should be able to move the governor arm to closed the throttle by hand. The hole on the throttle plate should be the far left one, with the throttle closed.


#7

S

Saddle Tramp

Rivets said:
After you hook it up, check that with the engine off the throttle should be wide open, but you should be able to move the governor arm to closed the throttle by hand. The hole on the throttle plate should be the far left one, with the throttle closed.
Click to expand...

Yep, governor movement will close throttle and arm is in far left hole. So, sounds like I need to adjust governor arm to the right just a bit.


#8

R

Rivets

This manual should help you.

http://www.mymowerparts.com/pdf/Tec...P-4-CYCLE-L-HEAD-FLAT-HEAD-ENGINES-692509.pdf


#9

S

Saddle Tramp

Rivets said:
This manual should help you.

http://www.mymowerparts.com/pdf/Tec...P-4-CYCLE-L-HEAD-FLAT-HEAD-ENGINES-692509.pdf
Click to expand...

OK, this might be a case of be careful what you ask for. It will take awhile to absorb all this but it sure provides a lot of detail. Thanks.


#10

R

Rivets

Just go through the section on how to adjust the governor.


#11

S

Saddle Tramp

Rivets said:
Just go through the section on how to adjust the governor.
Click to expand...

Well, that took care of it. There were some hints in the manual that I hadn't seen in other on line suggestions. Runs great now, but when I went to push it out to the yard, the rear (drive) wheels are locked up. Since it's not running and the handle is not pushed down to engage the drive belt, I'm guessing I will need to remove the transmission/drive assembly to see what's got the gears locked up. Before I took that all apart (and the manual is going to be a great help there) thought I'd check to see if you had any suggestions.

Thanks again for all the help so far.


#12

R

Rivets

Don't take the tranny apart!!! Check the drive wheels and gears first. MAke sure that they are clean, gears mesh properly and have a VERY LIGHT COAT of OIL on them.


#13

S

Saddle Tramp

Rivets said:
Don't take the tranny apart!!! Check the drive wheels and gears first. MAke sure that they are clean, gears mesh properly and have a VERY LIGHT COAT of OIL on them.
Click to expand...

Will do and right after I hit reply I realized the manual is for the engine not the mower. I do have one for the mower so my brain just wan't connecting. Thanks again.


#14

S

Saddle Tramp

Rivets said:
Don't take the tranny apart!!! Check the drive wheels and gears first. MAke sure that they are clean, gears mesh properly and have a VERY LIGHT COAT of OIL on them.
Click to expand...

Gears were clean but very dry. Oiled them. Anyway to add some grease to the transmission itself?


#15

R

Rivets

Yes, but be careful. Tip the mower on it's side, carb up. Carefully remove the tranny cover and you should be able to add some grease.


#16

S

Saddle Tramp

Rivets said:
Yes, but be careful. Tip the mower on it's side, carb up. Carefully remove the tranny cover and you should be able to add some grease.
Click to expand...

Sorry for the delay. I meant to respond the next day and it just got away from me. When I took the tranny cover off, the grease inside it was solid, not like a rock but it wasn't moving around and greasing anything either. Completely cleaned it out and filled it back up with fresh grease. Everything now runs like a charm. Your help was very valuable to me. Thanks, I appreciate it. Better yet, my daughter and her roommates that have been using a very old vibrating lawn mower will be thrilled with this one.

Out of curiosity, do you know anything about changing up replacement blades? I have a Honda HRR2166VKA mulching mower that runs fine but if I'm cutting off anything more than a 1/2 of an inch, it does not even come close to mulching it. Both blades are sharp so it's not an issue of dull blades. I'm looking to try a different version to see if I can improve the mulching quality.


#17

R

Rivets

I would send a PM to Robert@Honda. He is the top guy on this forum when it comes to Honda questions.


#18

exotion

exotion

Saddle Tramp said:
Sorry for the delay. I meant to respond the next day and it just got away from me. When I took the tranny cover off, the grease inside it was solid, not like a rock but it wasn't moving around and greasing anything either. Completely cleaned it out and filled it back up with fresh grease. Everything now runs like a charm. Your help was very valuable to me. Thanks, I appreciate it. Better yet, my daughter and her roommates that have been using a very old vibrating lawn mower will be thrilled with this one.

Out of curiosity, do you know anything about changing up replacement blades? I have a Honda HRR2166VKA mulching mower that runs fine but if I'm cutting off anything more than a 1/2 of an inch, it does not even come close to mulching it. Both blades are sharp so it's not an issue of dull blades. I'm looking to try a different version to see if I can improve the mulching quality.
Click to expand...

Get the micro cut blades to replace the quadracut blades worked like a charm for me


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