Prairiehammer

The fuel tank vent on the 1984 is a hose connected to an elbow to the right of the fuel filler. In line with hose is a rollover valve. Remove the right sidecover to examine or orient the rollover valve. The rollover valve is a check valve, intended to prevent fuel from escaping in the event of a "rollover" or tip over. The check valve has been known to stick. At least one time, the operator reported that he overfilled the fuel tank. The check valve prevented the fuel from running onto the ground but it also allowed a sufficient "head" of fuel over the check valve that the tank could not vent properly. The hose exits in front of the rear tire (along with the carb vents/overflow).

Marshall Mod .docx

Sometimes people get confused about what the "Marshall Mod" actually is. Some think simply replacing the stock antennae with Firesticks is the "Marshall Mod".

Ummm. The two bolts that hold the "bling" caliper cover ARE the caliper mounting bolts.

The "Marshall Mod" (named for Marshall Gammon) is primarily intended as a modification to the First Gen Venture, where the single antenna is replaced with two antennae; one dedicated to CB, the other dedicated to AM/FM. The splitter on the First Gen is also eliminated when the Marshall Mod is employed. There is no splitter on a Second Gen and the Second Gen already has two antennae, one for CB and one for AM/FM.

The advantage of the R1/R6 calipers over the stock is because the R1/R6 caliper is of a "monoblock" construction, whereas the stock XVZ13 caliper consists of two castings bolted together. Much better "feel" and more braking power is delivered by the R1/R6 caliper. No braking power is lost due to spreading of the caliper halves. Furthermore, note that the R1/R6 caliper pistons are different sizes on each caliper. This allows for greater progressive application and a more linear feel.

Four bolts? Not if it is stock. Only two chromed washer based mounting bolts. Don't be confusing the four hex socket (Allen head) bolts that join the two halves of the caliper as caliper mounting bolts. The caliper mounting bolt holes are in green. The four Allen bolts are in red.

Thank you, Cliff. Despite being published by Yamaha Motors, the information is faulty. Even the color of the "black" 1983 XVZ12TK is incorrect when described as "New Yamaha Black". Correctly, the color of the black 1983 Standard is "Sparkle Crimson Black", Yamaha color code 00AY. Another error is in the Literature numbers; I have a XVZ12TK owner's manual and it is "LIT-11626-03-36", not "LIT-11626-03-35" as stated. It appears they transposed XVZ12TK and XVZ12TDK numbers. Six errors in just two entries in that book doesn't strike me as a highly credible book. Here is photographic proof of the existence of "000101" serial number in a 1983 Venture Royale:

Thanks, CowpucTooch. I would have gotten it eventually when I investigated the Facebook post more thoroughly. As it was, I had just gotten done with a LONG day of planting, and I was just skimming threads.

Scott, do you care to add Tweaks II to my database? TIA. http://www.venturerider.org/forum/showthread.php?89793-Seeking-1983-1993-VIN-for-a-comprehensive-database

Cliff, your "Yamaha Product Manual" is incorrect, at least for the First Generation Ventures. For instance, the 1983 XVZ12TK has a starting number of "000101". I have many actual Ventures in my database with serial numbers before the stated "000286". Same for the 1983 XVZ12TDK; starting serial number is "000101". Other Yamaha documentation confirms the "000101" starting number for those and many other years. The various Yamaha Service Manuals show beginning serial numbers for different years/models. I have copies of the official "Yamaha Model Index 1958-2010", Yamaha document number 1JMC0-0MDL1, and the "000101" starting serial number for the 1983 is confirmed. I would be interested in perusing the Yamaha Product Manual that you cited. Do you have a digital copy of this manual you could send to me? Thanks.

Yes, Justin, your provided VIN is incomplete. Did you get that incomplete VIN from your title or registration? I've seen several instances of mistakes on documentation due to clerical errors, misread, transcriptions, etc. Or did you get the VIN from the white label on the lower frame rail, just below the brake pedal. Sometimes that label is damaged or the numbers become illegible. Best to get the VIN from the numbers stamped in the steering head. I can extrapolate the VIN/frame number from the engine number, but the engine may sometimes be replaced and the frame/engine numbers do not match. Check again. And thanks.

I keep track of First Gen accessories' selling price on eBay. Have for several years. The rotor covers for the MKI, ABA-26HCD-02-00, (they are different than the MKII rotor covers) have sold for as little as $26/pair (2012) to as much as $140 (2014). The caliper covers for the MKI, ABA-26HCD-03-00, (also different than the MKII) range from $19.50/pair to $69/pair. The front fender "bumper", (Yamaha calls it "Front Bumper Trim") with lights, ABA-26HCD-01-00 has sold for $19.95 to $81.99. This information probably didn't help you much, because of the obvious wide range of selling prices. Just consider the condition and how bad you want them gone and price accordingly. Set the price high. If no one bites, adjust price or offer free shipping for the next go around. Good luck.

Huh? The "vacuum advance", AKA as the "Boost Sensor", or "pressure sensor" is the same on all First Gen Ventures. There is not a need for a Second Gen vacuum advance.

I agree Heather, his profile appears to be current; even shows him as a "Supporting Member", but if you check the "Community"→"Member List" tab, he is not listed as a supporting member. Why is that, @Freebird ?

Dano has allowed his Venturerider.org membership to lapse. He will not be able to see a PM, I suspect.

If you used the MKII (1987) INNER AND OUTER clutch bosses, there should have been no problem. The "shaft" is the same all years. The basket is the same all years. The plates are the same all years. The only difference is the inner and outer clutch bosses (and of course the spring(s)).

For others information; what was the phone number and email address that got this positive result?

That motorcycle accident happened on Wednesday, the 20th. And the deceased, Lester Ott, rode a Harley. Darrin's cited accident happened on Thursday, the 21st.

The "little diaphragms" on the Venture carbs have nothing to do with the choke/enrichener. The little diaphragms are part of the deceleration enriching circuit. Two different animals.

Yes. Part number 93109-08061-00. That seal is used on more than a hundred Yamahas. Only five bucks or so.

Concerning the "choke" on the 1984: the choke lever on the 1984 is unique to that year Venture. It is "coaxial" with the handlebar, as opposed to the "under slung" choke of the 1983, 1985-1993. I guess it was an attempt to "improve" the enrichener operation, but apparently it was deemed a failure, because Yamaha went back to the under mounted (under the switch housing) enrichener after just one year (1984). Some folks who have complained of the "loose" enrichener lever on the 1984 have wrapped some friction tape (as a string) around the hand grip, between the hand grip and the choke lever, to tighten up the choke action. Concerning the difficulty in starting; it sounds as if ALL the enricheners are not being opened during the "choking" start. And the poor fuel mileage COULD be a result of one or more of the enricheners remaining open. Check the enrichener linkage to insure fully open on all four when choke is desired AND check that all four enrichener plungers are FULLY retracted closed when the "choke" is off.