Why is my Jem 7vwh a piece of S***? - Jemsite
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post #1 of 20 (permalink) Old 09-11-2010, 04:37 PM Thread Starter
 
Join Date: Sep 2005
Location: Dubuque Iowa, The States
Posts: 46
Angry Why is my Jem 7vwh a piece of S***?

So I finally got my dream guitar I've wanted for ten years. I got a 1998 Jem 7vwh because I wanted the ebony board so bad over the rosewood. This thing has been a freaking nightmare. My rg520qm plays better, has better tone, and stays in tune better! What is the deal here? Is this a bad year for them or something? It is indeed a real one, not a fake. I know because I also had a fake so I know the differences.

I can't get it to set up for the life of me. The strings won't lay down on the board. You know how you finally get a guitar playing like butter, and you can legato nice and smooth? Well this is terrible. It won't get that setup no matter how I tweak the truss rod, adjust the action, tilt the trem, use different spring formations and combinations. I'm using d'addario 10's. I have the trem posts bottomed out as far down as they can go, with no buzz. But the high e is still too far away from the board. I finally got the string tension manageable, but it will not stay in tune. The knife edges are fine, and the nut doesn't appear to be slipping. The strings are good and broke in from a couple weeks of playing. Maybe the springs aren't broke in?

I'm just ready to put this damn thing on the bay, and buy a prestige RG. Any advice guys?
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post #2 of 20 (permalink) Old 09-11-2010, 04:41 PM
 
Join Date: Jan 2007
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Re: Why is my Jem 7vwh a piece of S***?

Take it to someone who can set it up properly? Cos you know what they say about a bad workman, don't you?
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post #3 of 20 (permalink) Old 09-11-2010, 04:52 PM
 
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Re: Why is my Jem 7vwh a piece of S***?

Quote:
Originally Posted by Diamond Dave View Post
Take it to someone who can set it up properly? Cos you know what they say about a bad workman, don't you?
Totally agree with this statement.
I get guitars bought to me by guys who have tried alsorts of adjustments and tweaks. you need to spend a few £ .... or $ in your case and get that sucker sorted!!!!
My jem 7vw is a 1998 model it plays great nice low action (I have had it refretted with Dunlop 6000 fret wire ) I have no shims in the neck pocket all is good, you just need to get it to a tech.
Good luck with it.
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post #4 of 20 (permalink) Old 09-11-2010, 05:05 PM Thread Starter
 
Join Date: Sep 2005
Location: Dubuque Iowa, The States
Posts: 46
Re: Why is my Jem 7vwh a piece of S***?

Yeah you guys are probably right. I guess I need to stop being so proud and just let someone else take a crack at it! I've done all the setups for my other guitars, and never had problems. Maybe this one is just too touchy.
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post #5 of 20 (permalink) Old 09-11-2010, 05:44 PM
 
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Re: Why is my Jem 7vwh a piece of S***?

You only need the shim if you want to pull up a perfect fifth on the edge alone, lol.

Just let someone else have a crack at it, late 90's to '03 are my favourite 7vwh's, I ADORE the ebony, I'd really love one. I don't think there is such thing as a bad year for JEMs, just different years for different specs.

If you want one last go at setup, here's a couple of indicators... Check the string height in three places.
1. The Nut: fret the 3rd fret and tap the string over the first fret, the string should just kiss the fret, i.e. you shouldn't hardly be able to see a gap between the fret and string, but it will make a click if you tap it with the end of your finger. if it's too low, put a shim under the locking nut. If it's too high, there's probably a shim under the nut already, in which case, try removing it. I've done this a couple of times, and even ended up using the nut shim in the neck pocket - we'll get to that.
2. The Truss Rod: the truss rod only affects the height of the string between the 2nd and 10-12th frets (believe it or not). Fret the 2nd and 12th frets and tap the 7th fret. There should be a little more relief than the nut test (lol, nut test) but you should barely see a gap between the string and 7th frets. if there's more, tighten the truss rod, less or the string is touching the 7th fret, loosen. The truss rod needs to be adjusted when the guitar is fully in tune with all the strings!
3. The bridge: likelihood is if the bridge screws are all the way in, there will be hardly any pull back on the trem. The bridge height only affects the action above the 10-12th frets. Fret the 12th fret and look at the 24th, there should easily be twice the relief than the 7th from the last test, but you can keep adjusting this to get the level of 'acceptable' buzz. Electric guitars will always buzz acousticly, it's important to gauge the level of buzz through an amp.

Other things to bare in mind; the Lo Pro edge does not lie flat as it initially looks, it's the knife edges you can see at the sides that should be parallel to the body, the sides of the trem will be angled off the body slightly.
As for shimming the neck, all American JEMs should already have shimmed necks. Shimming the bottom of the pocket - nearest the pickups - is equivalent to lowering the bridge. The necks are shimmed because by raising the bridge posts off the body, it allows you to pull the trem back further into the body.
I tend to make sure I don't use more than three springs, having fewer springs makes the trem move more easily. Having 2 and screwing them further into the body will make the trem really soft, having 4 springs at less tension each (same overall tension) will make the trem harder to move.


Hope this helps!
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post #6 of 20 (permalink) Old 09-11-2010, 05:47 PM
 
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Re: Why is my Jem 7vwh a piece of S***?

If your trem post are fully in toyr neck angle is incorrect...That is why your action is high... Give it to somone who knows what they are doing to correct the neck angle , neck relief , trem angle , nut height, and for god sake put 9s on it...
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post #7 of 20 (permalink) Old 09-11-2010, 05:53 PM
 
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Re: Why is my Jem 7vwh a piece of S***?

Quote:
Originally Posted by SP2333 View Post
and for god sake put 9s on it...
+1 :-)
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post #8 of 20 (permalink) Old 09-11-2010, 06:40 PM
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Re: Why is my Jem 7vwh a piece of S***?

It is also possible that the previous owner took the saddles off and put them back in the wrong spots--his could account for the E being higher.



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post #9 of 20 (permalink) Old 09-11-2010, 08:28 PM
 
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Re: Why is my Jem 7vwh a piece of S***?

You only want 9's if you plan on using the whammy bar often, otherwise other gauges are fine
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post #10 of 20 (permalink) Old 09-11-2010, 08:45 PM
 
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Re: Why is my Jem 7vwh a piece of S***?

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post #11 of 20 (permalink) Old 09-12-2010, 05:29 AM
 
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Re: Why is my Jem 7vwh a piece of S***?

Are you guys saying that 10's are bad for JEM? I use the whammy bar a lot, and I have 10-49's and 13-56's on my other guitar.. And I don't have any problems at all.. If jem doesn't work correctly with any other gauges than 9's (which I doubt very highly), I won't be buying a jem ever.
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post #12 of 20 (permalink) Old 09-12-2010, 05:35 AM
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Re: Why is my Jem 7vwh a piece of S***?

the 7vwh is one if not thee best guitar ive ever played.sounds like you need it setting up or something cos the 7vwh smokes.or it could be a fake
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post #13 of 20 (permalink) Old 09-12-2010, 06:51 AM
 
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Re: Why is my Jem 7vwh a piece of S***?

Dont let the "9 brigade" tell you other wise, all gauges will work well on your guitar, just a little bit of spring tension ajustment to do. If they dont work well then you have a problem thet need sorting. String gauge is all down to your own personal preference.
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post #14 of 20 (permalink) Old 09-12-2010, 01:29 PM
 
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Re: Why is my Jem 7vwh a piece of S***?

You can use any strings you like on a JEM, I wouldn't say any gauge was best, worst, right or wrong.

I do like a good set of 9's though...
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post #15 of 20 (permalink) Old 09-12-2010, 02:11 PM
 
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Re: Why is my Jem 7vwh a piece of S***?

Quote:
Originally Posted by CosmicDebris View Post
+1
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