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Author Topic: The bike Honda never built - or, my MR250 Elsinore for the Vintage 1000  (Read 12017 times)

Offline Mr.E

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  • Posts: 1870
  • Got to keep the loonies on the path...
This place needs more Elsinores  :)  So its been a few years, time for another abomination from my garage.  This time it's time to get a bike ready for the Vintage 1000 this summer on the Trans America Trail.  The bike to be used is a '76 Honda MR250 Elsinore.  Here's the deal:  The bike needs to stay under $1000 excluding tires.  My wife bought me this for Christmas for $400. So I hope I can keep it under the limit.  Its surprisingly complete.  It even had the requisite swamp mud in the motor.  A bit of messing with it and its got spark. even sputtered once.  But before I jump on it too much the motor is coming out for a full freshening up.


Offline Mr.E

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  • Posts: 1870
  • Got to keep the loonies on the path...
Pulled the motor out, things seemed ok.  When I picked the bike up at Jussy's house we noticed some whitish stuff inside the covers.  wasnt sure what it was but kept messing,



Turns out it was the swamp water corroding the cases on the inside.  Dammit. 



Found one little hole so far, hope there arent more.  this is gonna add some more work to the pile,


Offline HURCO550

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  • Posts: 2739
  • Life is short. Smile while you still have teeth.
I'm in
Keep er' Between The Ditches!!!

1984 VF1000F Interceptor:http://www.dotheton.com/forum/index.php?topic=71539.msg842137#msg842137
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer
"Are there any die hard KZ550LTD fans in existence?" ~ doc_rot

Offline haircuttergirl

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Woot woot. Vintage 1000 here you come!

Offline Maritime

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The GL Rebirth: http://www.dotheton.com/forum/index.php?topic=68337.0
CX500 Low budget Bobber : http://www.dotheton.com/forum/index.php?topic=43617.0
"Beer makes you feel the way you ought to feel without beer" -Henry Lawson
"Beer is proof that God loves us and wants us to be happy." - Thomas Jefferson


Offline VonYinzer

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  • Posts: 18290
Righteous. Doubt I have anything that'll help get her on the road, but if ya think of something just shout.
The faces of the damned
And all the butchered lambs
If I had to do it over
I just would've done it slower

Offline Mr.E

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  • Posts: 1870
  • Got to keep the loonies on the path...
Not much to update except new crank bearings are ordered, and I'll probably get a gasket kit soon.  Need a new piston also.  The gas tank is also in need of a liner, and i'm kinda thinking SL175 fenders will be a nice change too. Little more trim than the crusty oem ones at least.

Offline JustinLonghorn

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  • No Purple Hearts, No Blue Ribbons
Righteous.
I'm going to eat your brains and gain your knowledge.

Into The Sunset, CB750 build

TT500 the Animal

Offline xb33bsa

  • Posts: 7727
Not much to update except new crank bearings are ordered, and I'll probably get a gasket kit soon.  Need a new piston also.  The gas tank is also in need of a liner, and i'm kinda thinking SL175 fenders will be a nice change too. Little more trim than the crusty oem ones at least.

nice project while youi have the crank on the bench you should check the big end of the rod for radial clearance
a dial indicator is the only way really a bit tricky but if you hold the rod gently sideways against the thrust washer then you can push pull to get a reading
really needs to be done flushed clean and dry,so the grungy oil doesn't interfere with the measurement
somewhere you could find an upper limit but anything over .003" is getting close to all done

Offline canyoncarver

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  • 'hacking is learning'
#raceshit
--
YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
The Shovelhead springer chopper
A bunch of KZ's...some Suzukis', and a disassembled CB550
--

Offline Mr.E

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  • Posts: 1870
  • Got to keep the loonies on the path...
nice project while youi have the crank on the bench you should check the big end of the rod for radial clearance
a dial indicator is the only way really a bit tricky but if you hold the rod gently sideways against the thrust washer then you can push pull to get a reading
really needs to be done flushed clean and dry,so the grungy oil doesn't interfere with the measurement
somewhere you could find an upper limit but anything over .003" is getting close to all done

Thanks XB, I'll be sure to do that. For now I've still got to get a 28mm socket for the clutch and make a rotor puller because Honda wanted to make this one different from everything else I guess. Oh well, I've got a lathe, 20x1.5mm die, a brain and a welder. I'll make one and save $9 :)

Offline Mr.E

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  • Posts: 1870
  • Got to keep the loonies on the path...


It isn't pretty, but it fit in my lunch break and it'll work. A 20mm rotor puller. I'll pop it on and give it a twist later.

Offline HURCO550

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  • Posts: 2739
  • Life is short. Smile while you still have teeth.


It isn't pretty, but it fit in my lunch break and it'll work. A 20mm rotor puller. I'll pop it on and give it a twist later.
You dang machinists make me sick
Keep er' Between The Ditches!!!

1984 VF1000F Interceptor:http://www.dotheton.com/forum/index.php?topic=71539.msg842137#msg842137
1975 RD350 Road Racer: http://www.dotheton.com/forum/index.php?topic=70652.msg833688#msg833688
1973 Ironhead Hardtail: http://www.dotheton.com/forum/index.php?topic=68135.msg788081#msg788081
1976 GT250 Rebuild: http://www.dotheton.com/forum/index.php?topic=64973.new#new
Full Custom Pit Bike: http://www.dotheton.com/forum/index.php?topic=66954.new#new
1971 Yamaha 90cc twin HS1: http://www.dotheton.com/forum/index.php?topic=70498.0
"Two strokes are the motorcycle equivalent to Thors chariot. Full of glory and memories of battles victorious" ~ von yinzer
"Are there any die hard KZ550LTD fans in existence?" ~ doc_rot