 |
|
09-05-2010, 06:40 PM
|
#1 (permalink)
|
|
Senior Member
Member #4035
Join Date: Jul 2010
Location: flaherty, KY
 ( 0)
Posts: 114
|
98 450 foreman problem
450 foreman started blowing back thru carb. took the head off checking the valves. i had to drive the intake valve out it was the tight in the head. the exhaust slid rite out like normal. no marks on piston, nothing else damaged. does anybody know what causes this or is it just time to go out? it is 12 years old.
|
|
|
|
09-05-2010, 06:46 PM
|
#2 (permalink)
|
|
Super Moderator
Member #948
Join Date: Oct 2009
( 0)
Posts: 23,815
|
Did the top of the engine look like it was getting plenty of oil, nothing else looked worn?
__________________
Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!
You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
|
|
|
|
|
09-05-2010, 07:14 PM
|
#3 (permalink)
|
|
Senior Member
Member #4035
Join Date: Jul 2010
Location: flaherty, KY
( 0)
Posts: 114
|
evereything had oil on it just like normal. nothing unusual about it. its just seems like the valve swelled up too tight for the hole causing it to stick
|
|
|
|
|
09-05-2010, 07:24 PM
|
#4 (permalink)
|
|
Super Moderator
Member #948
Join Date: Oct 2009
( 0)
Posts: 23,815
|
I don't know what would cause that. Did you try sliding the other valve down in the valve seat to see if it fit right and moved freely. If it does, I would just put a new valve in it and hope it doesn't do it again.
I've seen valves stick like that, but only if the engine has been sitting for a long time without starting it.
__________________
Most 4-wheeler problems are caused by a loose nut connecting the handlebars and the seat!!
You only need two tools in life -- WD-40 and duct tape. If it doesn't move and should, use the WD-40. If it shouldn't move and does, use the duct tape.
|
|
|
|
|
09-06-2010, 03:37 PM
|
#5 (permalink)
|
|
Senior Member
Member #4035
Join Date: Jul 2010
Location: flaherty, KY
( 0)
Posts: 114
|
yes the other valve slides good in it. guess im just gonna put a new valve kit in and try again.
|
|
|
|
|
09-11-2010, 09:05 AM
|
#6 (permalink)
|
|
Senior Member
Member #4035
Join Date: Jul 2010
Location: flaherty, KY
( 0)
Posts: 114
|
i put in new valves and springs problem still not fixed. it blows air out carb even harder. i thinking the timimg mite be off. wanted a second opinion before i start into it because it gonna b a good job to get to the timing chain
|
|
|
|
|
09-11-2010, 09:54 AM
|
#7 (permalink)
|
|
Super Moderator
Member #2048
Join Date: Feb 2010
Location: north little rock, ar.
( 0)
Posts: 14,958
|
if it's acting like my 2000 trx350tm rancher did..when i rebuilt it..and it's blowing gas back out the carb..then your timming is off..i just went through this very same thing..and yes..the timming chain and cam are a b__tch to get to !..unless you pull the motor...does the new valve slide in the valve guide in the head easy ?..if so..then yeah..you got a timming issue..your gonna have to pull the motor in order to get to the cam and timming chain..and you will need a special tool to remove the flywheel. when you get to your timming chain..and you re-align it..make sure you don't do what i did..and use the wrong timming mark on the cam sprocket !!!!..to make sure you got the right mark..after you think you got the right one..look on the lobe side of the cam sprocket..there should be a letter U on the very top of the cam..just make sure you get it facing up.
|
|
|
|
|
09-11-2010, 10:00 AM
|
#8 (permalink)
|
|
Senior Member
Member #4035
Join Date: Jul 2010
Location: flaherty, KY
( 0)
Posts: 114
|
i got flywheel and clutch pullers. the manual shows the 450 timing chain in front behind the clutches. sounds like it gonna be a fun afternoon
|
|
|
|
|
09-11-2010, 10:07 AM
|
#9 (permalink)
|
|
Super Moderator
Member #2048
Join Date: Feb 2010
Location: north little rock, ar.
( 0)
Posts: 14,958
|
Quote:
Originally Posted by jeffnott
i got flywheel and clutch pullers. the manual shows the 450 timing chain in front behind the clutches. sounds like it gonna be a fun afternoon
|
that's odd..the timming chain on my 2000 rancher was in the back of the motor..where the pull starter is..did they move the timming chain on your bike to the front ?.
|
|
|
|
|
09-11-2010, 10:14 AM
|
#10 (permalink)
|
|
Senior Member
Member #4035
Join Date: Jul 2010
Location: flaherty, KY
( 0)
Posts: 114
|
its not the 350 rancher its 450 foreman. according to the book i got to pull both clutches to set timing and change the timing chain. its prob the original and stretched so it prob gonna need a new one
|
|
|
|
|
|
Lower Navigation
|
|
|
| Search tags for this page |
|
1999 honda 450 foreman timing chain location, 450 foreman timing, honda 450 foreman timing chain, honda 450 foreman timing chain replacement, honda foreman 450 loose timing chain, honda foreman 450 timing chain, honda foreman 450 timing chain replacement, honda foreman 450es timing chain replacement, honda timing chaine 450 esp 1999, how to check the timing on a 2000 honda 450, how to install timing chain 98 honda foremanes, how to replace timing chain 98 honda foreman youtube
Click on a term to search our sites for related topics.
|
| Thread Tools |
|
|
| Display Modes |
 Linear Mode
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|
All times are GMT -6. The time now is 10:52 AM.
