Refreshing my engine found this

[Mike m]

I discovers I have 1219 pistons.also my #4 cylinder sleeve is chipped

[red]

I discovers I have 1219 pistons.also my #4 cylinder sleeve is chipped

Mike,

Did you find the missing chip?  I wouldn't want it wandering around loose in there.

[Mike m]

Yeah i think this is it

[Pat Conlon]

 

That's disappointing Mike....time for a new sleeve (or sleeves)
You know, using your FJ cylinder block you can go as large as 1314cc, if you want to pay for new pistons and sleeves (Wiseco Kit)

You can go up to 1412cc with a sleeved XJR block and Ross 84mm pistions.

Give Randy a call and see what he can do for you.

Sorry to see this Mike

Cheers Pat

[Mike m]

Pat is 1219 wisco pistons drop in or do I need to bore?

[Mike m]

Does RPM do cylinder boring how much does this cost with labor

[Pat Conlon]

Yes, RPM can and will do all the work for you..... Call them tomorrow (Monday)

According to the Wiseco specs, you can use the 78mm (1220cc) Wiseco pistons by boring out your existing 1200 sleeves (FJ1100's need new sleeves)
...so the 1220cc Wiseco pistons in your existing 1215cc sleeves, I think a bore and hone *may be ok* on your existing sleeves.. (**see below)
I'll defer to Randy and others. Some things are best left to professionals.
Scroll down to the FJ specs: http://yamahazone.biz/pistons.html

On larger pistons... you don't bore anything.... you press out the old sleeves and press in new ones sized for the pistons you want to run.

Seeing as though you will need at least 1 new sleeve....this would be a good time for a bump in displacement, if you can afford it.
You think your FJ hauls ass now? You will be in for a pleasant surprise.

The least expensive way for you to get running again would to get just 1 new sleeve, sized for your existing 1215cc pistons, have RPM install it along with fitting new rings on your existing pistons and a fresh hone job on your existing sleeves.
That depends on the wear of your existing 3 other sleeves....maybe they (the other 3 sleeves) are out of tolerance?
In that case, to use your existing pistons you will need 4 new sleeves or... bore your existing oval sleeves and install new pistons.
You don't know until you measure.

Personally, I would just box up the cylinder block and pistons and send them to Randy and say....fix it.
He will discuss your options once he takes measurements.
You will:
1) get back your existing block with properly sized/ finish honed sleeves with new rings on your existing pistons, fitted....ready to go.
2) get back your existing block with new sleeves and new pistons/rings (max.1314cc) fitted..... ready to go
3) get back a new XJR block with new sleeves and pistons fitted (max 1412cc) ready to go (except you will need to do machine work on your existing case for clearance on the big sleeves)

Clear as mud?

Cheers  Pat

[Mike m]

So yesterday I removed all my pistons discarded the bad one and soaking the what I thought were good ones over night to clean.this morning I dried them and here's what I got from 2 of the 3 good ones.all 4 are now good the pistons are worn to much were the wrist pins seat.was looking forward to having everything machines this week this set me back

[Mike m]

Here's #3 piston is gouged to bad.Thiers a significant ridge in their.

[Pat Conlon]

Ok Mike, so you need new pistons...that makes your decision easier.

Closer to you, in North Carolina, there is a company called Andrew's Motorsports.
They have some piston kits along with complete cylinder/piston assemblies:
 http://andrewsmotorsports.mybigcommerce.com/yamaha/yamaha-xjr1250/new-category/

I would suggest upgrading your 3 shift forks in your '86 transmission while you have things apart.
http://rpmracingca.com/proddetail.asp?prod=4KG-18512-00
http://rpmracingca.com/proddetail.asp?prod=3XW-18511-00
http://rpmracingca.com/proddetail.asp?prod=3XW-18513-00

Let us know what you end up doing...

[Mike m]

So I got on eBay and found a good used cylinder for $80 with conversation with the seller I felt secure in the purchase so heater day I received the cylinder it's in great condition just as the seller described.looking closely at my new cylinder my stomach fell it's a 1097 cylinder.I've can't win this process has takin so many crazy twists all going backwards.

[Mike m]

A pic of the cylinder

[racerrad8]

Mike,

I thought I read an email from you last week you were sending everything to me.

Buddy, wrap everything up, put it in a box and send it to me. I can inspect what you have and give you a direction to get it fixed.

I see the two photos of the wrist pin bore, but do not see what you are referring to as wear.

That 1100 cylinder you received is not going to work with anything you have.

Randy - RPM

[Mike m]

Give me a day or so I'm hammers at work I have no time to hardly get anything done.thanks randy

[Mike m]

Do today I removed my bad sleeve by beating my cylinder in our shop oven.I used our bearing race drive to remove the sleeve.came out very easy.hopefully I'll get the 3 new pistons I orders then out to rpm