Jump to content

How to know if you motor is bored?


Recommended Posts

I recently purchased a 2002 banshee. The second owner claims that the original owner, (I am the third owner), had the motor bored 60 over to a 410. I didn't pay big bucks for it b/c there were no receipts to prove it. However the bike is extremely fast, and I just had is serviced and found out the barrings were completely trashed, and even with the bad bearings that bike was super fast. So I am wondering if this is in indicator of the bike having the motor work down.

 

Any tips or suggestions on how I can find out with out taking apart the motor??

Edited by BansheeRidingClean
Link to comment
Share on other sites

Have someone with a borescope (sometimes called a video scope) look down the spark plug holes and read the number on top of the pistons. Most auto repair shops have one these days. They're expensive, so unless you have a repair shop buddy, they're probably gonna charge you a bunch for a "look".

Link to comment
Share on other sites

If his pistons are have carbon on them no chance he will be able to read it that way. Pull the had and you might have to take a piston out and wash it or steel wool it to read what size.

I am not mechanically inclined to do that, and dont want to waste the money on finding out. I was looking into motor rebuilds, and chrome casings etc, but everthing is so expensive. Also, I can't believe that new A-arms and shocks cost around 3 grand.

Link to comment
Share on other sites

I am guessing you are talking about the axle bearings being out and unless they were froze up it is not really going to slow you down and unless you have ridden a lot of banshees you are not really going to be able to tell if it has had motor work done unless you take it apart and look. Just having it bored is not going to make a big enough defferance for you to be able to tell. It may be ported then that would make it have more power.

Link to comment
Share on other sites

I have a friend that has one and it was kinda cool looking around inside the motor of a bike I had just bought. I took the reeds out and looked in the bottom end too. I was able to read the Wiseco number on the top of the pistons, some work on the transfers and also see that the cases were port matched.

Link to comment
Share on other sites

I am guessing you are talking about the axle bearings being out and unless they were froze up it is not really going to slow you down and unless you have ridden a lot of banshees you are not really going to be able to tell if it has had motor work done unless you take it apart and look. Just having it bored is not going to make a big enough defferance for you to be able to tell. It may be ported then that would make it have more power.

Yes that would be the rear bearings.

Link to comment
Share on other sites

I am not mechanically inclined to do that, and dont want to waste the money on finding out. I was looking into motor rebuilds, and chrome casings etc, but everthing is so expensive. Also, I can't believe that new A-arms and shocks cost around 3 grand.

Like it or not, u better plan on spending some cash. These things are very addicting :dance:

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...