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Can anyone help me figure out what size carbs I need for my 1972 xs2? I’ve been looking around and I want to go with a pair of Mikuni slide carbs. I’ve noticed there are a few different sizes, 32mm and 34mm being the ones I see the most and both say they would fit my engine. Thanks for any...

Among other parts for my rebuild, I am looking for a seal kit. There's the 10-piece one on MikesXs and there's this 7-piece one on eBay. I guess my question is (even though probably obvious) which one do I go with? Are there places to get the 10-piece seal kit at a better price than Mike's? I...

awesome, thanks for the reply.

I'm about to order a lot of parts soon for my engine rebuild and am curious to know if anyone knows the legitimacy of yamahaxs650.com. I'm ordering from a few different sites, but this site seems to have some of the same parts a little cheaper than mikesxs. Thanks!

I don’t think I’ll do a re-phase, instead probably just get new 447 rods and matching pistons

Finally got around to tearing down the bottom end. Sat on my bench with just the top off for the past few months 😂 now to send the crank off

That’s exactly what I need to do with my crank too. Could I ask how much you paid for that, or approx how much? I’m trying to save up some $$ before I jump on it, but I’m not sure exactly how much I need to at the moment.

Thank you!

Does anybody know if Hugh’s handbuilt is still in business? I’m looking at a 1972 XS2 crank rebuild and am trying to find a reputable shop to do it.

I’m in the slow but sure process of rebuilding my 1972 XS2 and I’m looking for any advice or experienced knowledge about where to source new connecting rods for this rebuild. The ones on there are toast and I can easily find the 447 type, but finding ones for a 1972 has been a little difficult...

Alright for sure. Sounds like a resounding yes to replacing them 😂 as far as bottom end rebuilds go.. where do you stop? It’s a 50 year old engine, so I get it owes nothing at this point, but the further I look in the more there is to be done and replaced. Where is a general point of stopping...

The one with the blue rubber bands is the right and the other is the left. I could take a video of the play each has too if that would help.

I will send some pics soon or in the morning

Oh I’m sorry, that’s what I meant. I wasn’t specific enough. Most of the copper is worn off where the wrist pin sits.

On both rods most of the copper is gone except for the back and front sides. I can fit a 0.06mm feeler gauge between the stock wrist pin and the rod. Will this make or break the build? I rebuilt a cj360 in the past and didn’t replace the rods and it’s still goin I suppose. Would this be a...

Brought in my cylinders to the machine shop for a second opinion on what size pistons to go up to. Next mission.. buy new pistons.

I’m posting this in hopes to get some guidance on the matter at hand. I’ve disassembled the whole top end and am slowly getting to everything (boring and installing oversize pistons, checking head and valves for spec/lapping, new cam chain etc etc). The whole shebang. Anyways, while I have it...

Yes! Thank you! I remember hearing this site be mentioned in other threads, but I forgot to take a look. These look great and for a good price compared to others I’ve seen.

Where were you able to find an oversize piston kit for the xs2? I’m struggling to find anything that isn’t out of stock right now.