collapse

www.dimecitycycles.com

https://www.townmoto.com/collections/vanson-leathers


www.restocycle.com

www.CITYLIMITMOTO.com

www.jadusmotorcycleparts.com

www.bisonmotorsports.com

www.speedmotoco.com

www.lostapostlejewelry.com

www.cognitomoto.com

www.sparckmoto.com

www.Moto-Madness.com

www.pistonsociety.com

www.steeltowngarage.com


Author Topic: Honda 650 single  (Read 2241 times)

Offline cardinal

  • Posts: 58
Re: Honda 650 single
« Reply #10 on: Jun 12, 2018, 18:29:33 »
That sounds crazy.

Offline unclerob

  • Posts: 166
Re: Honda 650 single
« Reply #11 on: Jun 13, 2018, 04:38:17 »
Found you a pic....!

Offline The Limey

  • Posts: 407
  • Evil English Villain
Re: Honda 650 single
« Reply #12 on: Jun 13, 2018, 04:42:54 »
 Weren't they twin ports to make a radial head design a bit easier?  Either way, cracking job there matey.  If I weren't living off a pension I'd commission one of those beauties.
I was born a rocker.  I'll die a rocker.  And I'm proud of it.

Offline cxman

  • DTT SUPPORTER
  • *
  • Posts: 2499
Re: Honda 650 single
« Reply #13 on: Jun 13, 2018, 11:18:16 »
only one of the carbs has idle jet and circuit

and it has progressive linkage to open the second carb later
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Offline der_nanno

  • Posts: 408
  • Faster!
    • Greasy Greg
Re: Honda 650 single
« Reply #14 on: Jun 14, 2018, 02:35:07 »
only one of the carbs has idle jet and circuit

and it has progressive linkage to open the second carb later

Much like Yamaha XT600 engines. Speaking of the RFVC-design... it's really just as horrible as it sounds. If maintained correctly they are ... ok, but if several Summers working at a Greek motorcycle rental has taught me one thing: as soon as they aren't, well, they're ticking time bombs with worn rockers and cams. And as seemingly everybody abuses them, both are very hard to come by for a reasonable price. But that's slightly off topic and those frames ARE KILLER. Please keep showing more of the fabrication work!
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Mule TR1.1 build here on DTT:
http://www.dotheton.com/forum/index.php?topic=75458.0

My Turbo TR1.1 (XV1000) build here on DTT:
http://www.dotheton.com/forum/index.php?topic=72571

My XS Triple Sidecar build here on DTT:
http://www.dotheton.com/forum/index.php?topic=74211

Offline The Limey

  • Posts: 407
  • Evil English Villain
Re: Honda 650 single
« Reply #15 on: Jun 14, 2018, 05:20:42 »
Funny you mention the XT.  For my next project I've been thinking about slipping a big XT  single mill into an FZR400 chassis, make a kind of supersports single.  Seen the XT  engine in a Cagiva  Moto frame and it caused spontaneous failure of my Y front elastic, such was the extent of the swelling in my groinal  region.
I was born a rocker.  I'll die a rocker.  And I'm proud of it.

Offline unclerob

  • Posts: 166
Re: Honda 650 single
« Reply #16 on: Jun 14, 2018, 06:36:23 »
Not sure I'd call the RFVC design horrible....more just unnecessarily complicated! I once ran a business servicing and renting out the 250RS singles for London couriers....they really were time bombs! Cams on those ran directly in the head so the whole top end was buggered in one go....
But you're right they do need regular oil changes to last, the donor bike I used for the previous bike (the red one, 62) I got off ebay for 200 odd with an Mot (god knows how) and 78,000 miles! Luckily for me though I'd also come across a very low mileage front on write off that had a cracked case mount...so a nice lot of good bits for the rebuild.
Just finished this frame yesterday and painted it....and only forgot to weld on one bracket....usually its more so some assembly pics soon....
Re the big single in a light frame idea that was how this project really started with me....I had a couple of Honda singles and was planning one in a Cagiva Mito frame....went as far as buying one with a dead engine but decided I wanted something more classic as it were....spoked wheels twinshock etc so ditched the Mito idea and made my own frame ...incidentally its not only the Honda singles I pick on to rip apart...have recently done the same sort of thing to a Hinckley Trident, a CBR400 and currently looking for a nice innocent Bonneville to chop to pieces!

Offline unclerob

  • Posts: 166
Re: Honda 650 single
« Reply #17 on: Jun 15, 2018, 18:35:42 »
Was going to post some assembly pics but then realised I left the camera at the workshop....so heres some from before of making the tanks instead....
I'm ok with welding sheet metal but not so great with making it into nice curvy shapes, but I made the first one from steel and it took forever, hours of hammering, my neighbours started throwing things at me and it didn't come out that well either!So Plan B was to make a fibreglass mould of it, then make a tank shaped box in ali and fit it into the fibreglass cover using expanding foam....

Offline der_nanno

  • Posts: 408
  • Faster!
    • Greasy Greg
Re: Honda 650 single
« Reply #18 on: Jun 16, 2018, 05:19:39 »
Oh wow, that came out sweet!
Real freedom starts with the freedom of thought.

My Blog:
http://greasygreg.blogspot.co.at

My Mule TR1.1 build here on DTT:
http://www.dotheton.com/forum/index.php?topic=75458.0

My Turbo TR1.1 (XV1000) build here on DTT:
http://www.dotheton.com/forum/index.php?topic=72571

My XS Triple Sidecar build here on DTT:
http://www.dotheton.com/forum/index.php?topic=74211

Offline unclerob

  • Posts: 166
Re: Honda 650 single
« Reply #19 on: Jun 17, 2018, 14:56:28 »
Beginning assembly now, the swingarm is the stock Honda one with the monoshock bracket removed and brackets for twin shocks added....using NJB shocks which have 2" of length adjustment. During welding the bottom legs of the frame distort in slightly so I use a length of studding and nuts to push them apart....saves struggling and damaging paint
Next is the oil tank, it bolts to the frame at the rear with 2 rubber bushed bolts, then another bracket underneath with 2 rubber buffers on it is bolted to the frame downtube....as its tightened up it forces the tank against a 3rd rubber mount.
Idea being to avoid having brackets welded directly to the tank....