MileHi Posted August 22, 2015 Share #1 Posted August 22, 2015 (edited) I aquired an 84 VR a few days ago for $350. It was apparently parked full of gas in 2011. after cleaning out the tank and taking the carbs apart for cleaning and getting it all back together it still didn't run right but it's possible i missed some gunk in the passageways, on the other hand the big surprise was that the bike had a vmax motor, minus the vboost. In any case it's still not getting up off the pilot to the main like it should, and I've ruled out major vacuum leak with the starter fluid trick. Should the vacuum advance be plugged into the port on the left front carb, or the sync port on the left rear intake? If I'm not mistaken on the first gen ventures it's the port on the carb, which on this bike had about a foot of hose plugged in not connected to anything on the other end, and the sync port was connected to the advance with a small plastic part inline (check valve? restrictor?) I've tried it both ways and it doesn't seem to make a difference. Any advice would be welcome. Edited August 23, 2015 by MileHi Link to comment Share on other sites More sharing options...
KIC Posted August 23, 2015 Share #2 Posted August 23, 2015 I don't have any answers on the motor issues, but I sure want to know the story about the prior owner.. Maybe the original motor is keeping Hoffa company.... Link to comment Share on other sites More sharing options...
mkflow Posted August 23, 2015 Share #3 Posted August 23, 2015 I have Vmax carbs on my '83. Post on here said vac advance had to be on carb not sync port. Working for me. Link to comment Share on other sites More sharing options...
MileHi Posted August 23, 2015 Author Share #4 Posted August 23, 2015 I downloaded a service manual for the vmax. (this motor is a 2WF meaning 87-96 california built. the advance goes to carb #2, and would seem as though the sync port on #1 should be plugged. It occurs to me that you wouldn't get the most out the motor without using the vmax control unit, though it would be programmed to control spark with vboost. There's a question for the theorists, I have no need for the vboost part of the tach being an old and slow guy Link to comment Share on other sites More sharing options...
MileHi Posted August 23, 2015 Author Share #5 Posted August 23, 2015 Oh, the prior owner was one Wittie McNeil, representative for sanitation workers during 81 New York sanitation strike. Impressive guy, this one. The world was probably better off with him as a role model for NY young men. I assume his bike got the max motor when it lost 2nd gear, though that's speculation. I also assume for the moment that the problem with getting up off idle is either gunk I missed in the carbs, though would seem like I would have the same obstruction in all 4, or the control unit has gone south. Link to comment Share on other sites More sharing options...
MileHi Posted August 23, 2015 Author Share #6 Posted August 23, 2015 Okay, in the morning I'll do a couple of pea shooter tricks and put a vacuum gauge on her and see where I'm at. Funny, I bought this thing thinking part her out or flip her. Link to comment Share on other sites More sharing options...
bkuhr Posted August 23, 2015 Share #7 Posted August 23, 2015 If you decide you do have an ignition box issue, there is an after market, tunable ignition box that is being successfully used on both venture and v-max. contact dingy Link to comment Share on other sites More sharing options...
MileHi Posted August 23, 2015 Author Share #8 Posted August 23, 2015 (edited) Depending on what I decide to do with the ol witch, I may consider the tunable box. Here's how she's sounding so far; Edited August 23, 2015 by MileHi Link to comment Share on other sites More sharing options...
MileHi Posted August 26, 2015 Author Share #9 Posted August 26, 2015 Still trying to figure out what to do with this one. The complete motors are going $1500 on Ebay, so I could part it out and eventually profit big. I could plastic weld, sand, polish, maybe repaint and shoot for NADA. It's not a keeper for me because I don't have the appreciation for the extra 30 h.p. though, after riding the 99 RSV I do miss the Jaguar handling of the first gens. Suggestions maties? Link to comment Share on other sites More sharing options...
Flyinfool Posted August 26, 2015 Share #10 Posted August 26, 2015 Man I would sure appreciate an extra 30 HP. I am still of the belief that the vehicle with enough HP has never yet been built....... I would fix her up and ride her or sell her complete. Someone will pay more for that extra HP especially in a clean looking bike. Link to comment Share on other sites More sharing options...
dingy Posted August 26, 2015 Share #11 Posted August 26, 2015 It makes no difference which carb sync port the vacuum hose is connected to. I would suggest you remove the air cleaner cover, start motor and rev it some and see if slides are all moving freely. You can see them with cover removed. If not, pull side covers off carbs & check rubbers for pin holes. Gary Link to comment Share on other sites More sharing options...
Great White Posted August 26, 2015 Share #12 Posted August 26, 2015 (edited) 83's had the vacuum advance plugged into the ported vacuum point on the carb. I believe it was 84 and up the vacuum advance was plugged into the port on the manifold below the carb. In fact, I think the carbs after 83 didn't have the port on them. So if you've go thte port, you might have 83 carbs on your "junkyard dog". That "little plastic thingy" is a check valve/restrictor, there should be an arrow on it somewhere. Now, yours being a junkyard dog sorta bike, there's no telling which TCI you have in there: 83, 84 or even a VMax. Maybe even newer than 84. Only way to tell is check the part numbers. Since there's no VBoost, I would put my money on there being a stock 84 TCI in there. I can't help you on the vacuum line if it has a VMax TCI in there, but there's lots of places to download a VMax service manual from on the internet. As cool as it may seem to keep it together, I'm betting you'd get more money for it parted out. Mostly out of the engine becuase it has that "VMax mystique" about it. All the venture parts will probably be lucky to just pull in what you're get for the 'Max engine..... What was that puff of smoke from the engine valley close to the end of the video? Edited August 26, 2015 by Great White Link to comment Share on other sites More sharing options...
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