Radare's 1992 Seca II Restoration

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radare
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Radare's 1992 Seca II Restoration

Post by radare » Thu Aug 07, 2014 10:11 am

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As most of you are undoubtedly aware, I recently bought a 1992 Yamaha Seca II with a damaged starter gear/clutch assembly. The bike is in good enough condition that I was able to ride it home, some 70 miles, without incident.

Cosmetically, it shows scratches and wear typical of a bike this age, however, it is clean and in better shape than many of the XJ's we've seen. My goal is to repair the starter damage and slowly restore the bike back to a stock bike. We'll see how long that lasts.

This XJ600 is the 2781st XJ produced and was built in October 1991. It currently has 22614 miles on it.

Here are some as-brought-home condition photos:

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My plan is to proceed as follows:
  • 1. Give it a good pre-disassembly bath to remove the layers of dust and grime on the engine.
    2. Completely disassemble the bike and remove the engine.
    3. Install starter gears from my junk '97 engine.
    4. Install a new clutch, oil pump and drive pin.
    5. Set the valve clearances.
    6. Clean the carbs and replace their needle valves
    7. Install a new petcock and clean/derust the tank
    8. Replace the tires (I already ordered some Kenda Cruiser K671's for it)
    9. Replace clutch and brake levers with new ones.
    10. Replace rear shock with the original from my black '92
    11. Work on cosmetic fixes including the seat, paint touch up and repainting the tail section.
More to come!

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radare
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Re: Radare's 1992 Seca II Restoration

Post by radare » Thu Aug 07, 2014 12:26 pm

I hit the tank and tail with a bit of compound over my lunch break. The tank is going to shine up like a gem. It has one ding in the lefthand side where it contacted handlebars at some point. I may see if I can get a dentless-paint place to pull that out for me.

The tail has faded to pink and the compounding is only going to remove the paint and gloss the primer. So i'll be repainting the tail. Tonight I'm going to stop by Advance Auto and pick up a sampler of Duplicolor reds and see if I can come close to matching it. It's more pink than Victory Red and more metallic too. I think Flame Red will be a good choice but I'll let you all know after a few samples.

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Casper
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Re: Radare's 1992 Seca II Restoration

Post by Casper » Thu Aug 07, 2014 2:06 pm

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That bike looks considerably better than mine did when I brought it home first, amazing what deals you can find if you look.
Men do not quit playing because they grow old; they grow old because they quit playing.

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radare
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Re: Radare's 1992 Seca II Restoration

Post by radare » Thu Aug 07, 2014 3:17 pm

I ordered a few parts for it:
  • A pair of Kenda K671 tires (110/70 front and 140/70 rear). I went with a slightly lower profile front as I recall the Kenda's being quite tall. I'm also hoping the 140 rear will fit appropriately.

    A new petcock assembly (this caused the starter gear failure and it should be replaced)

    New grips; new rear emblem; new frame plugs for the swingarm bolt; new screws for the rear fairing; and a new battery strap.
More to come.

a_morti
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Re: Radare's 1992 Seca II Restoration

Post by a_morti » Thu Aug 07, 2014 3:48 pm

Casper wrote:
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That bike looks considerably better than mine did when I brought it home first, amazing what deals you can find if you look.
I agree, there is no chance I would spend time and money chasing as-new on a '91 XJ600S that is that good to begin with. From me it would get the engine fixed up, the seat covered and a new brake lever... then ridden.

The tyres are both the wrong ones by the way. The rear will probably work OK, but the front is meant for a 3" rim and will give a strange profile.

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radare
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Re: Radare's 1992 Seca II Restoration

Post by radare » Thu Aug 07, 2014 9:10 pm

Last year; okay, scratch that. Two years ago, when I bought my '97, it had a '95 engine in it and came with a junk '97 engine. The junk '97 engine was actually the '97's original engine. Early in its live, someone laid the '97 down and ran the crankcase into a curb.

The junk '97 engine has a massive hole in the crankcase and has sat uncovered for years. Despite that, it's been a good source of parts.

Tonight, I split its cases and pulled out its starter idler gear. It looks to be in great shape. Although its the original design (and not the revised, beefier one), it'll save me $100 and weeks of waiting. So i'm going to use it.

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I also found a near-perfect set of shift forks and shift drum, a very nice oil pump body and useable sump pan and filter adapter.

So the next step is to disassemble the '92 and pull its engine out. Once that's done, I can split its case and see how badly damaged its starter gear is. From peering in through the hole where the starter goes, it looks like a good number of teeth are completely gone.

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radare
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Re: Radare's 1992 Seca II Restoration

Post by radare » Thu Aug 07, 2014 9:18 pm

Also gave the bike a much needed bath in preparation for disassembly. I don't think it's been washed in years; at least, not the mechanical parts.

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LeighTower
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Re: Radare's 1992 Seca II Restoration

Post by LeighTower » Thu Aug 07, 2014 9:30 pm

radare wrote: Image
Yummy! Looks like the spaghetti sauce I had last night! :)
Best ride ever taken? The last one. I live for the next.

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Re: Radare's 1992 Seca II Restoration

Post by Drapheus » Fri Aug 08, 2014 7:38 am

radare wrote:Image
What a beautiful specimen!
'92 XJ600 - 50k | '95 XJ600 - 5k
Andrew Long Motography
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lucatnt
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Re: Radare's 1992 Seca II Restoration

Post by lucatnt » Fri Aug 08, 2014 7:58 am

Wowww seems indeed in good state!!!!

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