top end

Hello I was curious what the torque spec is for the 4 studs that go in the top of the bottom case and hold the cylinder in place I have been looking for quite a while and can't seem to find them anywhere please help. It's a 1989 yamaha blaster

Just picked up 02 blaster need full rebuild cases are in good condition head is good cylinder probly needs to be bored over im wondering what should I about the cylinder and what Brands should I use for the rebuild and if there anything else I need right now I'm thinking sending the cylinder off...

So I bought a blaster from a buddy first drive I had it out started making this awful screeching noise which I thought was the clutch. I took the clutch cover off an removed the clutch turns out I think it's a bearing in the transmission that is spun cause whenever I spin the wheel the...

I’ve got a 99 blaster that sat for awhile at my buddies house, before it sat it ran perfect and usually started up on the first couple kicks. I took it out to my dads lodge to start it up and we tried for hours to get it to start with no success. It has aftermarket Toomey exhaust pipes, 310...

My top speed is only 44 and compression was 112 cold a few months ago. 1) I dont know what the cylinder is bored to so how do i find out so i know which size to get? 2)Do i need the entire top end kit or just rings? 3)Do you always need to hone your cylinder or is it ok not too? 4)What is a...

So i just checked my top end out and changed all my gaskets because my base gasket was bad. When I was putting it back together I forgot to put the clutch arm on there so I had to take one nut off to get the clutch arm back on and I think that took pressure off the gasket and that is why it...

Hello! My name is Dan, I'm from Northeastern Pennsylvania and I recently acquired an almost immaculate 1991 Blaster WITH A TITLE. This has no aftermarket parts and even has the original tires from 1991 (three digit DOT code vs. a four digit DOT code). I've wanted a Blaster since I was about...

Bought an 01 blaster went through 2 top ends in 2 weeks. Mixing 32:1 with klotz Jets- 40 pilot 4th clip on needle 270 main Fmf pipe, head was milled .035 before last rebuild. Had not even a tank of gas ran through before it completely fried the piston. Putting a new bottom end in to make sure...

Hey, first time poster. Just bought a used 2003 yamaha blaster. Needed to do a top end rebuild which involved me buying a completely brand new Cylinder after breaking a bolt off putting the carburetor joint back on. Didnt do a bottom end but knew i should do both at the same time but after being...

So i am doing an entire rebuild on my 2000 blaster engine, was looking for some advice/thoughts on the parts i plan on using Full Top and Bottom kit with crank bearings...

Hi guys - A couple weeks ago I bought my kids a 1996 Blaster to run chores around our farm. We tested it out, bought new rear tires and sent my son out. About 30 minutes later he comes walking back and says, “it is making a weird noice and it stopped”. I grabbed the tractor and towed him back...

I bought a 1994 blaster from a guy I met online. He told me, that the bike ran, which it did, but it didn’t idle because the air hose wasn’t attached. So I attached the air hose, cleaned the carb, and adjusted the idle screw. After researching, I found out that it could have been the TORS...

Finally got the little guy torn apart to resleeve/bore the cylinder and upon further inspection I found discoloration on the crank. Coming from a European race background, I would sh*t bunnies and do cheetah flips if I saw this on one of my cars. That being said, is there anything to worry about...

Can anyone recommend a machine shop near Dallas? Doing a top end on a new purchase and would like to support the local guys if possible. After a couple different forum searches, I was still unable to find any information regarding machine shops in north Texas at all. Any help would be greatly...

Gents, Picked up one of the cleanest examples I've seen of these bikes just a couple days ago. Kicks over, but seems to have low compression. May be reaching out from time to time, as this will be my first comprehensive 2-stroke rebuild. Possibly looking at the VITO's 240 package and...

First time making a post. But So my chain popped the day while riding and cracked the case, still rode it with the crack for awhile after I just would add oil before every ride. Eventually I blew the top end. So I ordered a new top end kit off eBay which came with new gaskets, new cylinder...