With arthritis and a reconstructed wrist, my ability to grasp and drive a hand held screwdriver is , shall we say, diminished, whereas my ability to regulate the use of power amplifying tools has not. Don't assume that because I use an impact driver that the screws are over tightened. As far as veri...

Precision is easier than accuracy. Tactile sense is repeatable, but the actual value achieved requires a scale.

I understand that a JIS driver and complementary screw don't cam out like the Phillips does, but the question is whether the screws we have these days are JIS. I don't think they are.

Darned photos. When I enlarge the shots, they fuzz out, but good to know it was right side around. I hate auto focus devices.

Danny, Far as I know there are no specs for engine half screws (although I believe there are generic specs based on screw size), but I always figured an impact tool probably put double the count that I could do with a hand held screw driver. What I am curious to know is how you measure torque when a...

Does the piston have a cast-in or stamped arrow on top? If so, it points to the exhaust side. Take a look. Verify the piston was installed with the arrow toward the exhaust. I guess I have just never seen a 2-stroke piston with the ring gap forward. Unless it is just the photo that makes it look tha...

If you have never taken a Mikuni apart it would be good to find a shop manual of some sort, but since my wife was able to learn to do this in a night school class on motorcycle mechanics back in the 70's it just isn't all that hard to do. However, this venue may not be the best place for a step by s...

I use Honda bond 4 or the Yamaha equivalent. For the screws I use an impact driver and brass hammer.

Another question: are we looking at the exhaust side of the piston here? It looks like the ring locating pin is just to the left side of the piston which would put the ring gap just to the right of the exhaust port. I would think that was a crazy place to put a ring locator pin. Not familiar with Wi...

Just for grins, slip the ring into the top of the bore, square it up with the crown of a piston, and measure the gap with a feeler. Just curious to know what it was or what it would be now. If 0.009" which I believe you said it was set to, it shouldn't have jammed. Still curious to know if the ...

It came with a 24mm Mikuni, but lots of carbs have been changed out for others. To answer the question, yes it takes a 24mm Mikuni but best to take it off the bike and measure to be sure what you have before ordering parts. What parts do you think you need for the carb? There is little enough to &qu...

An article on this topic was in the Resonator a long time ago. I have found the article but can't find the publication date.

I have heard that Vic was able to repair his KTM tank with a JB Weld product. Since normal JB is simply epoxy and doesn't stick to plastic, I think we need a report on what was used and how it worked out. I was unaware there was anything at all that would stick to a plastic tank. How about a report ...

Erring on the rich side is proper procedure.

Taz, When you say the ports have no edges, what are you referring to? I was suggesting inspection of the port edges closest to the piston, i.e., looking at the ports from the top of the cylinder bore. The ports should have a chamfered edge of something like one to two mm. A port edge that is square ...

That was a pretty hard seizure. The picture gets a bit fuzzy when expanded but looks like some of the ring is missing in the area of metal transfer. Since this was a new piston and ring, I have to ask - who set up the ring clearance? Was it built by someone else for you, or did you install the pisto...

The possibilities are many. Jetting comes to mind first. But also possible: clogged exhaust; compression leak; worn rings and piston; timing; clogged pilot passages and jet; old gasoline; worn needle jet and/or needle. How long have you had it? Has it always been this way or is it something new? Hav...

The only difference between a bleed typ needle jet and a primary needle jet are the bleed holes in the jet body. This is not a difference in the carburetor, just one of the jets. Even if the jets don't swap between a bleed and primary carb body, the jet itself can be changed back and forth by drilli...

Both, the idea is to create a more or less molten puddle in the area to be mended. If both are not approaching a fluid state, they will not blend and bond. You can use a micro torch, but it takes care not to burn through or ignite the plastic. A soldering gun is easier to control, but works slower, ...

In which case, perhaps the lack of a shroud on the type A isn't the problem.

Specifically, what makes a given carburetor a two-stroke versus a four-stroke unit? I am not aware of any design differences.

I understand the difference in the needle jet as described. Question is, why can't the old carb be successfully modified? Is there something that isn't remediable? Jets not available or whatever. There is no such thing as a "bad body" unless it is cast wrong. So, for those who have had the...

sC shocks are pretty distinctive due to the finned body. If you have photos or an eBay link or whatever, post it.

I take it that no one has ever identified what it is about the early carbs that is the problem. I understand the needle jet didn't have a shroud. Frankly,mthat can be fixed if the jet comes out, even if other needle jets don't fit. So what is wrong with the "body" that makes it not useable...

Did a bit of research in the old posts on the question of the type A carb, but what I don't see is a discussion of replacing the needle jet in that carb. Are they pinned in place? Are they built with one-off jets that fit nothing else in the product line? If not, why would the carb be "bad"...

If the shocks you have on your RT are really 12 1/2" they may not be original equipment. I don't think any of the 100cc and up Hodakas used 12 1/2" shocks.

If the carb you have isn't damaged or blocked with crud in passages too remote to see, I don't see how your carb or any carb could cause damage per se. The best carb, poorly tuned, can be a problem, and I would expect that regardless of the version of the carb you have, if the jets can be replaced, ...