Head swapping

[sullyLang]

Will the 16 valve head from an FJ 11/12 fit onto an XS11? Maybe with the FJ cyl block or some small mods?

[cywelchjr]

I'm pretty sure that the answer to that is no, because if it could be done, someone WOULD have done it, guaranteed. I'm sure the FJ block won't bolt up to the XS11 engine, and while with enough mods it MIGHT be possible to get an FJ head onto and XS engine, the engineering and machining involved would probably exceed the cost of the entire bike PLUS and FJ several times over.

[XS1100_OEM4ME]

?

I don't think so, but the 1st thing I would do would be to compare the head gaskets, if not exactly the same, the cost to mod would be way more then doing a mod to make the FJ motor fit what what every you are trying to make

Will the 16 valve head from an FJ 11/12 fit onto an XS11? Maybe with the FJ cyl block or some small mods?

[sullyLang]

I figured

I kinda figured that would be the case. I couldn't find any reference to it b ut figured it never hurts to ask. Thank You

[XS1100_OEM4ME]

Welcome

You are Welcome, and welcome to the forum, "It is better to ask then it is to regret not asking"

[sullyLang]

2nd gear fix??

I've read through the 2nd gear fix in the forum, but was recently reading about another xs11 rebuild that refered to a second gear fix the involved moving the second gear spacer. I don't see any reference to this in the forum. Anyboby heard of this. My engine is already split for rebuild.

[XS1100_OEM4ME]

Dremel

I would say do the Dremel fix and leave the washers where Yamaha put them, they knew what they were doing IMHO You have her apart and the Dremel fix works great for the many who have used it and there is a step by step on here to follow

I've read through the 2nd gear fix in the forum, but was recently reading about another xs11 rebuild that refered to a second gear fix the involved moving the second gear spacer. I don't see any reference to this in the forum. Anyboby heard of this. My engine is already split for rebuild.

[cywelchjr]

The washer swap is often done WITH the fix. In MY opinion, once the gears have a proper backcut the washer swap is a waste of time, as properly back cut gears suck themselves into gear like most other bikes. It DOES make getting into neutral a little harder, but shifts are so much more sure (I've never done the fix, but my original engine on my 80G didn't have the fix and was starting to show symptoms of needing the fix and the replacement engine very clearly has back cut gears in it). Strangely enough, one can never shift incorrectly and still need to do the 2nd gear fix, and yet someone else can thrash the gears and never have to do the fix. That said, replacement gears came from the factory already back cut, I suspect my engine as it appears to have been factory rebuilt, had those gears put in at the same time the case halves were replaced (no VIN number on the engine, never been stamped, clearly a replacement set of cases, probably part of a factory or dealer rebuild, based on lots of other things I can tell however that it came out of an 81H).

[XS1100_OEM4ME]

Crazy

I know it sounds CRAZY, but, sometimes the guy who knows what he is doing when "trashing" the gears, makes them hold tighter When I was raceing and power shifting cars with no clutch, just perfect timming of rev's, then slamming on the gas again and again, the gears meshed in such a way that they never slipped out That "slamming togather at just the right time mates them for life IMHO

The washer swap is often done WITH the fix. In MY opinion, once the gears have a proper backcut the washer swap is a waste of time, as properly back cut gears suck themselves into gear like most other bikes. It DOES make getting into neutral a little harder, but shifts are so much more sure (I've never done the fix, but my original engine on my 80G didn't have the fix and was starting to show symptoms of needing the fix and the replacement engine very clearly has back cut gears in it). Strangely enough, one can never shift incorrectly and still need to do the 2nd gear fix, and yet someone else can thrash the gears and never have to do the fix. That said, replacement gears came from the factory already back cut, I suspect my engine as it appears to have been factory rebuilt, had those gears put in at the same time the case halves were replaced (no VIN number on the engine, never been stamped, clearly a replacement set of cases, probably part of a factory or dealer rebuild, based on lots of other things I can tell however that it came out of an 81H).

[bikerphil]

+1 on the washer fix, wouldn't have it any other way...



Yes, the gears do wear together and shift better with some hard use IMO.

[XS1100_OEM4ME]

Washer?

Are you saying, to move the washer if you have her apart And the saying at the track was break her in the way you are going to run her, if you shift the gears "like you mean it" they will "seat" If you are easy on them, they will slip soon! Clang and bang! That is if you knw how to shift in the first place!

+1 on the washer fix, wouldn't have it any other way...



Yes, the gears do wear together and shift better with some hard use IMO.

[bikerphil]

I prefer the washer move, others don't because the circlip is riding against a gear now instead of said washer. Mind you this is no ordinary circlip, it is very stout and does take some persuation to remove even with tools, let alone falling off on it's own. Yes, I personally recommend this, it probably more than doubles the life/health of 2nd gear till the next rebuild. To my knowledge, there has never been a failure of that circlip with the exception of on a drag bike, but that could have been anything though. If you see the actual contact area of those dogs and slots, you'll probably want to move the washer over to give them some more bite. JMHO

[sullyLang]

Perfect

Sounds like maybe moving the washer and analyzing the dogs is in order while it's apart. Thanks for the feedback.

[XS1100_OEM4ME]

Cool

That is cool, would putting in a super thin hardened washer in its place when you move it, to give a bearing washer to help the snap ring survive be a good idea

I prefer the washer move, others don't because the circlip is riding against a gear now instead of said washer. Mind you this is no ordinary circlip, it is very stout and does take some persuation to remove even with tools, let alone falling off on it's own. Yes, I personally recommend this, it probably more than doubles the life/health of 2nd gear till the next rebuild. To my knowledge, there has never been a failure of that circlip with the exception of on a drag bike, but that could have been anything though. If you see the actual contact area of those dogs and slots, you'll probably want to move the washer over to give them some more bite. JMHO

[bikerphil]

A couple of members have machined the thickness of the washer off the gear and then add a second washer, hey whatever makes you feel better.