Honda ATV Forum banner

1 - 12 of 12 Posts

·
Registered
Joined
·
7 Posts
Discussion Starter #1
Have 04 foreman 450 was checking top end, wrist pin was wore and so was rod ordered new crank kit new parts seem to have excessive clearance
 

·
Registered
Joined
·
7 Posts
Discussion Starter #3
yes it is all stock bike only has 3 thousand miles never seen one like it before piston tollerance is fine just ristpin to rod wore new parts seem to have excessive clearance
between wristpin and rod
 

·
Super Moderator
Joined
·
18,227 Posts
Hmmm Without looking at the specs i would make an educated guess that you either have a bad production rod or pin??? not too sure without touching it. But I'm thinking you are not supposed to have play.
 

·
Registered
Joined
·
7 Posts
Discussion Starter #5
I just recieved new parts last night so I havent had chance to mic yet, old rod and pin seam to have brass smeared on them to make matters worse put back out lifting engine out of bike to bench
 

·
Super Moderator
Joined
·
18,227 Posts
can you grab the piston and the rod and push it down and pull the piston up or twist the rod and piston in opposite directions is there slop that way?
pulling the back always sucks. sorry to hear that.



I just recieved new parts last night so I havent had chance to mic yet, old rod and pin seam to have brass smeared on them to make matters worse put back out lifting engine out of bike to bench
 

·
Registered
Joined
·
7 Posts
Discussion Starter #7
well just hobbled out to shop I was just looking at new parts and went to get mic and caliper and old wristpin, old wrist pin is 50 mm long, one they gave me is 69 mm long and there bothe .750inch diam guess its another trip to dealer
 

·
Registered
Joined
·
7 Posts
Discussion Starter #8
Its funny though have same diam on pins and new pin and rod have slop enough just by rocking that I know it will hammer just like old one did
 

·
Super Moderator
Joined
·
18,227 Posts
Are you sure it's a rod or wristpin knock and not a bearing?? or valve train issues?
 

·
Registered
Joined
·
7 Posts
Discussion Starter #10
I was talking about brand new parts original bad parts was obivious ristpin rod prob, here is update though went back to honda got wiseco wristpin fits perfect in new rod oem wristpin was bad
 

·
Registered
Joined
·
7 Posts
Discussion Starter #11
by the way though thanks for your thoughts kept me thinking honda kept saying it couldnt be their part had me thinking I was putting in crank kit over valve slop when I knew I was right just second guessing myself as I am getting older and not drinking as much
 

·
Super Moderator
Joined
·
18,227 Posts
So my first asumption was right. Great glad you got it taken care of bro.
 
1 - 12 of 12 Posts
Top