Prairiehammer

Next is another prototype.

If you are talking about the 'attached thumbnail' pic: upload your selected pic to your post as normal. After the upload is completed, you will see the name of the uploaded pic highlighted as a link. Right click on that link and 'save link location'. In the dialog window, click on the icon that looks like mountains, paste the saved link location into the text box and enter. On your post you will see the same 'attached thumbnail' and the full size pic of the same thumbnail. If you are speaking of large pics that are displaying larger than the 640x640 pixels maximum that this website allows to be attached via the 'attached thumbnail', those large pics are direct copy and paste from the website that I found the pic on. Called 'hot links'.

Circa 1973 MZ 250 Trophy http://s2.hubimg.com/u/724767_f520.jpghttp://motoralbum.sytes.net/Bikes/MZ-ES250-1973.jpg

Well, I did say to be precise. According to the auction house that sold it for $30,000 ( http://www.midamericaauctions.com/motorcycle/mv/1968-mv-agusta-600-roadster-four/ ) it is a 1968. And according to the manufacturer, it is called a '4C6'. Furthermore, the same auction house claims that that Agusta was only sold from 1968-1970. "1968 MV Agusta 600 Roadster Four When Cycle World magazine tested (March 1968) the 600 Roadster Four, it said that it was “perhaps the premier roadster of the world.” With its air-cooled 600cc, four-cylinder, 4-stroke inline engine, it was a cross-continent capable machine that was world-class. With a five-speed gearbox and a shaft-drive configuration, smoothness was a given. Rated at 52 HP at 8000 rpm, it could touch 165 Km/h. The 600 Roadster Four was one of the few MV’s sold in America. It was produced from 1968 to 1970 in 127 units. The price of 1.160.000 Lire was rather high and only well-to-do customer could afford it. Titled in Michigan." http://www.vintagemotorcyclesonline.com/zenphoto/albums/VMOL%20wallpapers/italian/MV-Agusta-600-4C6.jpg

Some think this is ugly. It don't look too bad from side, but when viewed from front...maybe it is ugly. Because the engine is so iconic, you must be precise with year and model. You can't just give the make. That would be too easy.

Easy peasey. 'V8 cafe racer' search brings this pic up near first. http://beforeitsnews.com/mediadrop/uploads/2013/52/fb2bc5a191de7da6cc416357183db0d4ca71b652.jpg Tjitze Tjoelker Honda V8 800cchttp://beforeitsnews.com/mediadrop/uploads/2013/52/2e17564a786f0d98ead1c8b1562d7a0887e9664a.jpg

Not your Daddy's bike; because there is only one.

2002 Yamaha YZF600R http://2.bp.blogspot.com/-PMKbL7XXWFA/TWMaeqGW6-I/AAAAAAAADg8/y_9njej-STs/s1600/2002_Yamaha_YZF_60_%2BR_Thundercat_2.jpg

Not an especially exciting bike, despite it's name.

Parilla 250 Wildcat (1965). This was made for the American market. Quite a competitive bike for its time. http://www.guzzi.com.au/mybikes/wildcat.jpghttp://www.earlyyearsofmx.com/images/bikes/parilla250.jpg Only a handful of the Wildcat Scramblers were imported in America by the U.S. importer Cosmopolitan Motors in Pennsylvania and were ridden primarily in scrambles events if they were raced at all. Note the quick detachable hand-formed tank, the beautiful suede seat, and the unique painted fenders. The “high cam” engine is fueled by a remote float Dellorto carburetor and exhaust utilizes a reverse cone megaphone.

Yay! Hell yea finally got it! I sure don't stump him very often! The Motor Company also offered a "Hunting and Fishing" version with a cargo rack, solo seat and high pipe. And a huge rear sprocket for low end grunt. http://www.walnecks.com/sites/default/files/1966%20Harley%20Bobcat.jpghttp://www.badweatherbikers.com/buell/messages/496363/327374.jpg

On California intended Ventures, the carb vent is routed into a carbon canister. The overflow/vents are joined together with a preformed 'T' hose for each pair of carbs and joined again with another 'T' then a single hose goes to a solenoid valve next to the TCI. While your bike may not be intended for sale in California, a previous owner may have installed carbs from a California bike. Those vent elbows are swaged/pressed into the carb float chamber and you run a real risk of breaking something if you try to turn the elbows to face rearward. Don't ask how I know this. The pic is of my 1991 California market Venture. I removed all the emissions plumbing and routed the overflow tubes to the rear. I utilized 3/8" tubing and incorporated a 'U' turn in the hose coming from the rear carbs (the vent elbow points forward on the rear carbs). I considered leaving the 'T' fittings and hoses and run a single tube rearward, but that tube would have interfered with the crankcase vent tube to the air cleaner, already a bear to re-install without adding even more congestion to a confined space. First pic is of my 1991 California carb set-up. Second pic is of a non-California 1983 carb setup. Third pic is of a California 1983.

You are getting close. It IS a Harley-Davidson. Sold in 1966 only.

Yep, it has forward controls and floorboards. http://www.visordown.com/common/images/copyrightimage.gifhttp://3d-car-shows.com/wp-content/uploads/2014/03/Honda_NM4_Motorbike.jpg

Need a hint? The DKW engine purrs.

No, you should be able to access the drain plug and add new lube with the bag on. It will be somewhat difficult to get in there but with the bike on the center stand and you on your back, you can get 'er done.

No, too late. Already got it. And I have already submitted a guess for you to find. Try to keep up, Steve.

This may take awhile, too.

1980 McIntosh Suzuki BR1 Bathurst Replica http://rmdmotors.com/wp-content/themes/rmdmotors/images/image.php?width=600&height=450;&image=http://rmdmotors.com/wp-content/uploads/2011/06/DSC01313.jpghttp://rmdmotors.com/wp-content/themes/rmdmotors/images/image.php?width=600&height=450;&image=http://rmdmotors.com/wp-content/uploads/2011/06/DSC01314.jpg

Makes for an especially difficult guess when the engine is not visible. When looking for a particular bike I usually try to identify the engine manufacturer, barring more unique characteristics.

Find this little racer.

1968 Yamaha Big Bear YDS-3C http://www.motorcycleclassics.com/%7E/media/Images/MCC/Editorial/Articles/Magazine%20Articles/2014/03-01/Two-Stroke%20Scramble%201968%20Yamaha%20Big%20Bear/Yamaha-Big-Bear-Square%20jpg.jpg

I suppose I'll have to give it to you, although it is a 2014 Suzuki GS1200SS. Note the gold wheels. http://moto-data.com/moto/Suzuki-GS-1200-SS.jpg

Arghh! Another one bites the dust! I think I am going to keep my First Gens, just so you other traitors can dream of how nice it was in the old days.

So ya think you know motorcycles, eh? Guess this one.