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After research of many threads I decided to try the shim approach. Backed out the hub spring bolts and knocked a 1/16" steel shim into the gap. After doing this when I tighten the hub bolts I am unable to bottom them out and the hubs have zero wobble. I dont see why this wont last and I also...

I've read numerous similar threads but the one thing I have found since my original post is that apparently Kubota's new style factory hubs are cast. I previously broke one of the hubs presumably because of the slop, I welded it back together and it seems to be as good/strong as new. Perhaps...

I have the issue with my rear hubs where they wont stay tight and the wheels are wobbly. I understand from other threads that there is an updated rear hub design that fixes the problem however there are also aftermarket wheel hubs available on ebay for 1/4 the price. Looking at some of these...

Really appreciate the detailed guidance. The guides appear to be cast iron and the head is also iron.

Preliminary low precision measurement indicates the valves are ~.2736 which means a letter J reamer (.2777) would be slightly too large and letter I would be slightly too small (.2720)

Thanks, I don't have a set of reamers so I'm stuck for now. I'll have to see if I can figure out what size reamer I need because it looks like a reamer set is a couple of bills

I'm in the process of overhauling the head on my B7100 and have run into an issue with the valve guides. I ordered based on the parts diagrams on messicks which show the intake valve guide 15261-13540 , exhaust valve guide 15261- 13560. After installing the first set of guides I discovered my...

I've trolled through several mikuni rebuild kits trying to hone in on the pump model number...none of them look correct and I can't seem to figure out the model or series of the lift pump

I see only the mention of fuel diaphragm part 15381-52040. From looking at the pump I would guess there are several gaskets needed and probably a couple of check valves. The gasket 15263-52140 is just the gasket to mount the pump to the block. I don't want to open the pump without line of...

B7100 Fuel Pump Looking for the mikuni rebuild kit for a B7100 lift pump (fuel pump). I've searched the usually sources and I see complete pumps which are cheap clones for around $30 but I would rather update the original pump with new diaphragms and gaskets for obvious reason. Anyone know...

I had assembled everything correctly however for some reason the locking pin that holds the cylinder in place was not sticking out far enough. I fixed this by removing the pump and snugging the two flat head screws on the back. All o-rings and copper washers have been replaced in the...

After pulling the valve on the injection pump i'm not getting any fuel in that cylinder. I was certain I had put everything back exactly like I found it but its clearly not pumping fuel. When I cracked the line and turned it over, the odd thing is that the valve in question starts pumping fuel...

Many thanks, exactly what I needed, a regimented process to tune it. I've looked around a fair amount for the pump o-rings and so far only found 1 potential candidate which is PN 04816-00150, if anyone knows if this is correct please let me know.

Thanks for all of the input, I think i'm making some progress. I checked the center screw and it was very loose, only finger tight, I think this explains why the adjustments were not doing much if anything. As suggested I also checked the lift pump and found it to be functioning fine however...

Is there any writeup on the injection/lift pump seals? I just checked my service manual and it doesn't cover anything on either, it only mentions how to remove them. From the pictures i've seen it looks like I should be able to remove each delivery valve and replace the o-ring(s), looks...

Filter is new, Injectors have been rebuilt. Other then that I have not replaced anything. I'll pull the adjustment and take a look. Will also investigate what I would need to give the lift and injection pumps a once over.

I don't think it's maxed out but I don't know how to tell. Based on the posts on page 1 of this thread I expected 2 turns or less would get me where I need to be but I've noticed little change with 2 turns. What does the center screw adjust?

10-4, thanks, still not getting hot enough on egt but I'll have to continue to tinker with it.

I found the attached image of the adjustment and I'm now even more confused. Based on the image I would think that turning the stud and center screw together would adjust one thing will turning the center screw with the stud stationary would adjust something else. I need someone with specific...

The adjustment I'm referencing is the one from post #4 in this thread...Quoted below. Looking at it closer, the center screw and the stud turn together. Just to confirm, counterclockwise increases fuel?