New (to me) 91 in need of serious help

Discussion in 'Mechanics Garage' started by rogersj3, Apr 30, 2010.

  1. rogersj3

    rogersj3 New Member

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    First off, apologies for the double post - I started this thread yesterday in the third generation forum, but received no responses.

    As of this past Tuesday I became the designated mechanic for/proud owner of a 91 VFR750 in road rash red that has been badly neglected for the past 5+ years. As far as I can tell someone laid the bike down in a fairly impressive way and took it home, threw some stabil in the tank, and then left it to sit ever since. I paid $420 for it.

    As expected, it has some fairly significant issues. In order of precedence they are:

    1. frozen throttle body
    2. carb gaskets
    3. "electrical gremlins"
    4. all the fairings were held on by zip ties
    5. and most of em were cracked


    For item one: I noticed immediately that the throttle would not turn at all. As part of the initial evaluation I planned to do a carb cleaning; after wrestling the beast off I was unable to rotate the butterfly valves. One can of carb cleaner later, I can now rotate the valves through the expedient of a wrench applied to the linkage but they stay in whatever position they are turned to. Where should I start? Total tear-down?

    Item two: again, as part of the initial evaluation and carb cleaning I realized I need to get a set of carb gaskets. I'd really not like to pay $40 a pop for a thin strip of rubber. Do I have any alternatives?

    Item three: previous owner indicated symptoms consistent with the R/R problem endemic to this series of bikes. I ordered the VFRness and an aftermarket R/R and Stator from wiremybike.com but I have yet to tear into that since I got sidetracked by issue one.

    Items four and five: as someone else said elsewhere on the forum, fairings for this generation are as easy to find as rabbit antlers. I have no experience doing plastic bodywork at all. A complete set of aftermarket fairings (unfinished) runs about $1000 - far more than I'm willing to spend at this point and for the foreseeable future.

    TL/DR

    Given the significant (to me) issues, what should I budget to get my bike into decent shape? Is it worth this much to get it working? Any feedback would be very much appreciated!
     
  2. adamjenkins

    adamjenkins New Member

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    Dont forget to pour mystery oil into the cylinders, sitting that long would be a harsh start on the engine.
    Body panels show up on e-bay occasionally,
    Dont forget forks..and all fluids are probably pretty rough..
     
  3. betarace

    betarace New Member

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    on the fairings, would suggest ebay pickin and paintin or airtech HONDA VFR750 1990-93, VFR 750 fairings, bodywork, fairing, upper, lower, mid, seat side, race, street, fender, tail, undertail, tank (really race plastics, a little heavy) but if you are handy... hey who knows


    servicehonda.com and ronayers.com are your friends (try to consolidate orders as their shipping prices are horrendous). and here is the service manual and parts fiche
    Download VFR 750F Shop Manual.pdf from Sendspace.com - send big files the easy way
    Download vfr750partslist.pdf from Sendspace.com - send big files the easy way
     
  4. afpierce489

    afpierce489 New Member

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    Another good place is Bike Bandit. You just put in the year bike you have and they come up with all the fiche for it. I just ordered the gaskets for my carbs from them. Yes, 4 sets, $178 later (including shipping) For your carbs and the way they are, I would recommend a complete teardown. Replace the gaskets, all of them. If you do a complete rebuild, you are starting from a known, not an unknown. You said that they stick in whatever position you put them in. Do yourself a favor, tear them down. Good luck.
     
  5. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

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    If you are taking it on as a project to keep you out of the bars, maybe you don't have a woman to blow your money for you, then it sounds like you found the right one.

    If you're looking for a cheap bike and don't get your jollies off on the labor, this isn't it - part it out and don't look back.

    If you get the bike running well and looking good, it sells for $2000-$2500. You'll have that much into the thing before you're done - especially if you aren't willing to take on some cosmetic repairs yourself.

    I'm working on the same project - http://vfrworld.com/forums/3rd-4th-...9-new-project-bike-hits-stable-90-vfr750.html

    Granted, mine has motor issues but that's only $300

    On the positive side, any used bike you buy will need to be gone thru with a fine tooth comb and if you take on the project, you'll know exactly what you have when you're done.

    Besides the issues you mentioned, you'll want to put in a new thermostat and replace rubber coolant hoses that are normally obstructed by the carbs. How are the tires and chain? New battery, someone mentioned fork oil change and likely fork seals. Any slop in the stearing stem bearings? Brake pads? Drain, flush, and fill brakes and clutch.

    Option B - on the cheap you could get this thing running again without putting a dime into it and sell it on craigslist for $800-$1000.
     
  6. betarace

    betarace New Member

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    whatever you do, "dont paint it pink like tink"
     
  7. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

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    Just pink stickers dammit!!
     
  8. Rollin_Again

    Rollin_Again Member

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    Well the good news is that if you decided to part it you could easily get your money back on the bike by just selling the wheels! It sounds like you know what you are doing so the only factor should be whether or not it is financially justifiable to fix it up. 3rd Gens with less than 20k miles that are in excellent to mint condition typically bring $2600 to $3500. There are plenty of high mileage 3rd Gens that need lots of TLC selling for between $1500 - $2500. The 3rd Gen is a wonderful and fun machine to ride and I'm sure you'll be happy with it if you decide to bring her back to her full glory. How many miles does she have on her? Any pics of this "alleged" bike??

    Rollin
     
  9. rogersj3

    rogersj3 New Member

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    Pictures of the alleged bike in a somewhat a somewhat disassembled state:
    [​IMG]
    [​IMG]
    [​IMG] (pay no attention to the hammer...)
     
  10. tinkerinWstuff

    tinkerinWstuff Administrator Staff Member

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    :fear:

    That thing looks terrible. I'll give you $500 for it.

    This is the one you want: 1991 Honda VFR 750
     
  11. zielarz

    zielarz New Member

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    Just need some love......!
     
  12. TOE CUTTER

    TOE CUTTER Mullet Man

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    That thing is in pretty good shape. Quite the gem when your done.
     
  13. Rollin_Again

    Rollin_Again Member

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    It was probably wrecked because it has one of those cursed 8 spoke rear wheels. Lucky for you I am willing to even swap wheels and give you the one from my 6th Gen. :biggrin:

    How many miles are on the bike? Are you a wrench by trade?


    Rollin
     
  14. dizzy

    dizzy New Member

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    After seeing the picture that's what I thought, too. Those carbs may take more than gasket sets and aerosol carb cleaner to fix though.
     
    Last edited: May 1, 2010
  15. rogersj3

    rogersj3 New Member

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    I'm a mechanical engineering student, so I'm not too afraid of poking around at the fiddly bits.On the other hand, I haven't messed with carbs before and I'm a little nervous about popping my cherry. I've just ordered the gasket sets and a physical copy of the service manual for the garage (don't want to get carb cleaner on my laptop - sissy, I know...) at a total cost of $175 before shipping. Went down to Wally World to pick up some Mobil 1 and a battery. I guess it was quitting time on a Friday in the Chinese sweat shop when the battery was boxed up - no screws, no filler cap, port cover tape halfway removed - so that's going back on my lunch break tomorrow. I'll keep you all posted of my progress as we move through the process.
     
    Last edited: May 3, 2010
  16. Cundalini

    Cundalini New Member

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    Which was april 20th.

    Now I get it.

    Are you going to name her Mary?


    Welcome to the forum. Hope you can ger her running. The gen 3 vfr is my favourite of all the motorbikes.
     
  17. dehning

    dehning New Member

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  18. rogersj3

    rogersj3 New Member

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    So I started in on my electrical gremlins this evening and I have found at least a symptom, if not the cause. The magnetic starter switch (SW, STARTER MAGNETIC 35850-MT4-000 in the parts catalog) connector has melted female connector plasticyness all over the male connector socket. The part is $70 from servicehonda.com, so instead of buying a new one (at this point) I took a small flat-head screwdriver to the connector and scraped a bunch of junk out. My question then is this: will a properly upgraded R/R and beefier wires solve the overtemp issue completely, or do I need to try and find other issues as well?
     
  19. TOE CUTTER

    TOE CUTTER Mullet Man

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    I have one to do this week and I am going to cut the wires a few inches back on the harness as the are badly damaged from heat and a new connector is needed.Would love to upgrade R/R but it is not my money and this should suffice for several years.
     
  20. TOE CUTTER

    TOE CUTTER Mullet Man

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    [​IMG]
    Deep fat fried, took quite a bit to get it unplugged.
     
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