How to fit Emulators to a pointy

[flymo]

Originally Posted by mikerj

Why do you suppose that Racetech have two different part numbers for the SV650 emulator? It's because the curvy emulator does not correctly fit the pointy forks, no matter what you may think. The emulator is designed to fit closely into the end of the damper rod so it is positively located and will seal correctly under all conditions. Feel free to bodge your own forks, but please don't suggest this is the correct way to do things as it simply isn't.

Urbanfireblade: nice job on the forks and a great set of pictures. I would suggest that you make the adapters a generous clearance fit on the emulators however, because if you ever want to adjust them then you want to be sure they will locate themselves into the end of the damper rods correctly when you drop them back into the forks.

You are arguing a different point. I fail to see how fitting a part in the exact way described by the manufacturer is bodging.

If, as it appears, you are suggesting that you are using a part of different dimensions and essentially retrofitting these to a different bike by use of custom made adapters then fine. No problem with that. The original part however does not require the use of an adapter, it has a mating surface with the top of the damper rod and works just fine as designed, it isn't a bodge. Take a look at the installation instructions that I provided the link for, pay particular attention to the internal diameter differences.

Your latter point reinforces this point exactly in mentioning "they will locate themselves into the end of the damper rods correctly when you drop them back into the forks". This is exactly how they fit by design.

Originally Posted by mikerj

Urbanfireblade: nice job on the forks and a great set of pictures. I would suggest that you make the adapters a generous clearance fit on the emulators however, because if you ever want to adjust them then you want to be sure they will locate themselves into the end of the damper rods correctly when you drop them back into the forks.

Yep, i see what your saying(I guess thats where my precision engineering o.c.d/analism kicked in!), i wasn't planning on removing/adjusting them again as most of the info i found on doing this job, most people set theirs to 2 1/2turns preload on the emulator spring. So i just went with the masses.
If i found they needed adjusting its just a case of remove the screw holding the damper rod in, let oil drain out and lift out the damper rod with the emulator in the top of it.

Originally Posted by flymo

Your latter point reinforces this point exactly in mentioning "they will locate themselves into the end of the damper rods correctly when you drop them back into the forks". This is exactly how they fit by design.

My only concern with your opinion is that you are referring to RT Emulators, whereas I believe the OP has fitted Debrix. You say the Debrix are a cheaper copy of the RT's but the OP's fitting says the dimensions of the Debrix don't sit flush withe the Pointy damper. Could you clarify? Urban did post the dimensions of both Emulator and Damper rod. Is it possible that the RT's dimensions are different, hence the need for an adaptor for the Debrix?

I think maybe this thread needs locking now, its getting a bit too-and-fro with opinions, i only done this to give people an idea of whats involved as i couldn't find anything myself when i looked.

[Bibio]

Originally Posted by Urbanfireblade

I think maybe this thread needs locking now, its getting a bit too-and-fro with opinions, i only done this to give people an idea of whats involved as i couldn't find anything myself when i looked.

don't get to hung up m8, i think you done a grand job and have been very informative.

in case you haven't noticed but the org is full of what seem like argumentative burgers. there are reasons why some people give advice in threads, they mean well even if it does come across as seeming arrogant. there are a lot of people here who have a lot of knowledge to share and they have gained that knowledge by doing what they do.

you have helped others by what you have done and not done which in turn helps for future reference for those that want do do this in the future.

[Bibio]

Originally Posted by Huwbee

Fantastic job urbanfireblade- well done.

All I need now is a step by step guide to a curvy emulator install -- Any takers ?

exactly the same but you don't need the spacer ring on the top of the damper rod.

the curvy is a straight drop in item using the Debrix emulator but the pointy requires a spacer around the top of the damper rod.

one thing i will mention is that the dimensions on the inside of the spacer UFB has used could be made a little larger so if you need to alter the dampening of the valve it's easy to take them out without having to take the damper rod out.

Yes, no need to lock the thread. People will eventually come along and search this thread so all the opinions are useful.

[yorkie_chris]

Originally Posted by flymo

You are arguing a different point. I fail to see how fitting a part in the exact way described by the manufacturer is bodging.

If, as it appears, you are suggesting that you are using a part of different dimensions and essentially retrofitting these to a different bike by use of custom made adapters then fine. No problem with that. The original part however does not require the use of an adapter, it has a mating surface with the top of the damper rod and works just fine as designed, it isn't a bodge. Take a look at the installation instructions that I provided the link for, pay particular attention to the internal diameter differences.

Your latter point reinforces this point exactly in mentioning "they will locate themselves into the end of the damper rods correctly when you drop them back into the forks". This is exactly how they fit by design.

AFAIK the racetech pointy emulators have a bigger step diameter than the ones they sell for curvy.
I am basing this on stripping 2 sets of forks which had what I believe are official racetech emulators.


You saying that the debrix emulators work fine in pointy? I looked at some when I first saw them on SVR and thought they'd rattle about too much without bringing the ID in a bit or closing up the gap somehow.
What I was worried about is emu seating offset, spring locking it there and it rubbing on stanchion.

[yorkie_chris]

Originally Posted by Urbanfireblade

Don't extend the forks too much as i think the lowers can slide off the stanchions now.

Nah be right. They're still held in by the circlip and bushings.

Originally Posted by MJC-DEV

The stock top of spring spacer is left unchanged for a pointy and cut for a curvey due to presence of pre-load adjuster or not

Depending what springs you're using etc.

[flymo]

Originally Posted by yorkie_chris

AFAIK the racetech pointy emulators have a bigger step diameter than the ones they sell for curvy.
I am basing this on stripping 2 sets of forks which had what I believe are official racetech emulators.


You saying that the debrix emulators work fine in pointy? I looked at some when I first saw them on SVR and thought they'd rattle about too much without bringing the ID in a bit or closing up the gap somehow.
What I was worried about is emu seating offset, spring locking it there and it rubbing on stanchion.

Yeah, I think what RaceTech do is simply stock the same item with variations in outer diameter and the 'stepped boss' diameter. It looks like the part number reflects this. So, as you mention there is probably an acceptable amount of sideways movement allowed for, as that gap gets too big they then recommend the next size in the range for the particular damper rod in question.

With Debrix emulators, although they are cheaper, it doesnt appear that they have as comprehensive a range of sizes to choose from. So the ones being purchased for the SV happen to share the same (or similar) outer diameter but the stepped boss diameter is designed to suit another bike's damper rod design (Harley I think). In cases where the boss isn't wide enough it probably makes sense to create the adapter discussed to close up that difference as you mention.