[est34986]

Hey guys, as the title states, the engine on my 2006 crf250r recently blew. I looked at buying a new (used) engine on eBay, but that is going to cost upwards of $1,500. Does anyone know of someone who rebuilds these for cheaper? I'm located in Las Vegas, but can possibly bring it anywhere. How hard would it be for someone like me (no prior experience rebuilding engines) to rebuild?

Thanks!

[Aussiecrf230]

Hi est34986 and welcome to the site.
Can you explain want sort of blow up you have and what you know is damaged.
Pictures are good to show damage.
That way we can make a reasonable assessment for you.

[est34986]

Not sure if these pictures are going to post correctly.

I'm not sure if this is a top end only problem, or if the bottom end is involved too. When I drained the oil I found lots of metal shavings (see picture above). After taking the top of the engine apart and looking down at the crankshaft, it looks like maybe these shavings came from the crankshaft (see pictures). I'm not sure how extensive the damage is. Any thoughts? Can I replace the crankshaft and call it good? I can provide additional pictures, if it will help.

[JimDirt]

To post a picture use a place like IMGUR or some place that allows you to post on forums/message boards (A Image Hosting Site) , in IMGUR you click on the image you upload and it opens a window with the picture , look for the link on the right that says Message Boards/Forums ... copy the link from the picture you upload to it , then paste that link in your post .... not sure what you are using now , but they don't show up and they are not showing a link to where they are hosted , but you can't post directly from your PC (I guess it uses too much bandwidth for this site , so that is why they make you use a Hosting Site)

If you post a link it will look like this
[img]https:/ /i.imgur.com/rPeW5VN.jpg[/img]
But show up like this

[est34986]

Thanks for the heads up. Hopefully this works

[JimDirt]

Nope ..... Same thing ....

[est34986]

Third time's a charm?

[JimDirt]

Nope .......

Are you using a hosting site ?? , and copying the link for Forums/Message Boards ??? , if so it should work (no matter what hosting site you use)

If you are using IMGUR , do as I showed in the previous post and it should work , for any other hosting site , use the appropriate link for message boards , if it posts up a huge long link , then it is the wrong one .... it will be short and have [Img] at each end if it is a link for forums .... similar to the example I posted before

[est34986]

I was using imgur and copying the url from each picture. Don't know what else to do...

[JimDirt]

Were you using the second to last link , like I have highlighted in this picture ??? , if you used this one , and then just pasted it directly in your post , it should show up like this
[img]https:/ /i.imgur.com/HnPmgXU.jpg[/img]

But look like this



So what you are doing is ..... Clicking on the picture you want to post ..... When it opens up in the little window like shown in my picture above ..... You go to the link that I have highlighted in RED , and clicking COPY ..... Then you go to a blank spot in your post and PASTE , and it looks just like the link I posted above .... correct ??

[est34986]

I followed the directions to the T. Let's see if this works...

[Aussiecrf230]

Well the pictures work now, that poor engine won't.
How old is the piston it seems to have extreme wear. Did it break off a skirt?
Jim or Neil can probably identify your debris. Lot of copper in there so think main bearings.
Does the big end have play and does the crank grind when turned over slowly.

Head looks ok as in no impact from piston.

I would say engine out split cases and lots of cleaning.

[Leardriver]

Ouch. That looks painful.

[JimDirt]

Glad you got the pics figured out .....

That looks bad ... I am going to say "complete" rebuild .... Crank/Rod , Piston , a complete disassembly and thorough cleaning , I would also have the head checked (find out where the local bike shops have their machining done , and have the head gone over) , if the valves have any wear , I would replace them now while you have it apart ...... unfortunately with the damage I see , you will be looking at a large parts bill , even if you do all the disassembly and assembly yourself , you will be looking at anywhere up to to what that used engine will cost , just in parts

Approximate cost :

Piston .... $150 - $250
Bottom End Kit ..... $250 - $700 depending on what kit you get
Gasket Set ..... $50 - $100 depending on what kit you get
Cylinder (if damaged/gouged) .... $250 +

That is the basics and does not include anything with the head .... if it needs valves replaced , you can be looking at anywhere from $150 to $600 .........

So you are looking at $450 at minimum , up to $1300 , just for parts if you do all the disassembly/assembly , and that does not , as mentioned , include doing anything to the head ...... , not sure what a shop would charge , but usually most bike shops get a average of $100 a hour for labor .... figure them charging around a minimum of 5-8 hours just for labor , if they buy the parts , figure a big markup on top of that compared to what you can buy them for ....

As far as trustworthy people to do the work and not ream you , I would say Ken , the owner here , whether you buy the parts , or have him do everything , he is located in So. Cal , so you would have to ship ........... otherwise , start going thru the phone book and finding local bike shops and/or dealers and call them to get "estimates" high and low ,for either parts alone , or everything , and compare to get the average price , I would not always pick the lowest price , pick the shop with the best reputation for good work and fair prices ..... , and/or check Rocky Mountain ATV for parts , as they usually have decent prices and fast shipping , if you are going to do the labor yourself ...................... (Hopefully you have a Factory Honda Service Manual ... if not I would highly suggest buying one) ...............

It is up to you , but either way , I see a lot of damage in those pictures , (glad you finally got them to post) , so it is not going to be a "replace 1 part and go" situation .... lots of shrapnel in those pics .....

[Leardriver]

Tough decisions ahead. The value of that bike in premium condition is $1500. Your cost to repair is at least that.

Parting it out, selling the forks, frame, cases, carb, and wheels, would net you far more than your cost to resurrect the current bike. If the bike has emotional value, make it perfect regardless of cost. If not, cut your losses.