RE: Losing RPM s

Reply

  #1  
Old 05-12-09, 08:48 AM
Member
Thread Starter
Join Date: May 2009
Location: ny
Posts: 1
Question RE: Losing RPM s

On my john deere 325 wth 18 H.P. in the winter with the snow blower on the RPM s stay at the MAX all the time.

In the spring and summer, the RPMs go to the MAX then after 10 or 20 minutes they automatically drop half way. Sometimes if you wait a minute or 2 the RPMs come back at the MAX. Most of the time when you lose the RPMs she will stay that way. Sometimes I go around the lawn doing about 1 MPH. filters, plugs, are maintained regularly. The lever is at the maximun level, just the RPMs drop.....

I am flabbergasted and do not know what to do.



Thanks, Broski............

 
Sponsored Links
  #2  
Old 05-12-09, 09:02 AM
BFHFixit's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Jun 2007
Location: USA.
Posts: 1,836
Which engine do you have? Single or twin?
 
  #3  
Old 05-12-09, 10:00 AM
puey61's Avatar
Member
Join Date: Apr 2004
Location: Upstate New York
Posts: 3,224
Should be a Kawi twin. I'd wonder if you have a mower deck bearing issue whereas it begins to seize when hot and drags the engine down with it.
 
  #4  
Old 05-13-09, 12:04 AM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,821
Or maybe you have one cylinder dropping out due to a bad plug, coil, etc... or possibly a broken throttle shaft? Does the engine ever over-rev as well?
 
Reply

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes