Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 07-10-2001, 06:57 AM
walkbehind48 walkbehind48 is offline
LawnSite Member
 
Join Date: May 2001
Location: Winterport, Maine
Posts: 9
HELP - need to turn up Lawnboy RPM

This past weekend I picked up a slightly used Lawnboy Silver Series 21" with a 2 cycle 4.5HP engine (traded in a broken down Yard Man 21" with a good running 5HP B&S + $55 for the reconditioned Lawnboy). The mower runs great and starts on first or second pull - I love the 2 stroke motor. My question is how do I raise the max RPM on this motor? I had read in past posts that there is a "white disk" on the motor that governs engine RPM??? I am not sure of the location of the disk.... Also, does anyone know what the difference between the 2 cycle 4.5 and 6.5 horsepower engines is??? I know the newest Lawnboys come with 6.5HP 2 cycle...any info or tips on getting the best performance out of this mower would be appreciated.

Thanks
Josh
Reply With Quote
  #2  
Old 07-11-2001, 10:27 AM
khouse khouse is offline
LawnSite Bronze Member
 
Join Date: Feb 2001
Location: lee's summit, mo
Posts: 1,479
There is an adjustment above the throttle shaft. It is a little hard to figure out at first but you'll get it. The older engines has the head cast with the cylinder. The newer 6.5's has a separate head and larger bore and different carb. The older engines has plenty of power and will respond nicely to the higher RPM of a governor adjustment.
Kenny
Reply With Quote
  #3  
Old 07-11-2001, 05:04 PM
Turfer Turfer is offline
LawnSite Member
 
Join Date: May 2000
Location: Cary, North Carolina
Posts: 99
If you look at the back of your motor between the carb and the block, you will see a white plastic fin looking thing. On the bottom of the fin is a white disk. You can turn this disk either way. It will "click" as you turn it. I just raised my rpms on mine yesterday. I adjusted mine from the side that he muffler is on. It makes a huge difference !
Reply With Quote
  #4  
Old 07-12-2001, 03:00 AM
vipermanz's Avatar
vipermanz vipermanz is offline
LawnSite Bronze Member
 
Join Date: Mar 2001
Location: Birmingham Alabama
Posts: 1,780
i'll take a pic of my carb and see if it's the same
__________________
<img src="http://img.photobucket.com/albums/v404/vipermanz/Newbanner.jpg" alt="Image hosted by Photobucket.com">
Check Out Weldingweb !!!
Reply With Quote
  #5  
Old 07-12-2001, 05:02 AM
Richard Martin's Avatar
Richard Martin Richard Martin is offline
LawnSite Fanatic
 
Join Date: Mar 2000
Location: Greenville, NC
Posts: 14,490
The disk may also be black. Mine was and it worked great guys. Thanks for the tip.
__________________
Serving Greenville, Winterville and Ayden NC



Reply With Quote
  #6  
Old 07-12-2001, 06:09 AM
walkbehind48 walkbehind48 is offline
LawnSite Member
 
Join Date: May 2001
Location: Winterport, Maine
Posts: 9
Thanks everyone for the helpful tips on turning up RPM. I love this 2 cycle mower - it is so much lighter & more pwerful than the Muraay 21" 5hp that it is replacing.

Josh
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 12:31 PM.

Page generated in 0.07995 seconds with 9 queries