masterofyard Posted October 21, 2011 Author Share #101 Posted October 21, 2011 I tested both sides of the plug, disconnected before testing. No reading at all. Even tried a second meter to make sure. Only reading I get is when I touch the black and red striped wire under the black and white wire. Link to comment Share on other sites More sharing options...
dingy Posted October 22, 2011 Share #102 Posted October 22, 2011 OK, we are talking the plug connector going to the pick up coils, not ignition coils. Meter is on Ohms scale, touch leads on meter together and see if meter reads zero. Hook one lead to the Black wire in connector. Other lead is touched to each of the other 4 wires, one at a time, meter should read around 110 ohms. Other 4 wire colors in connector are White, Gray, White/Green & White/Red. Not sure which one controls which coil, doesn't matter, they will be replaced as a set if bad. Wiring diagrams are at link below if you haven't already found them. Simplified diagram is electrically the same as full diagram, it just is laid out easier due to connectors not shown. Connector in question is at bottom of full wiring diagram, very near AC Generator. Trigger for these pickups is located on the rotor that powers generator. http://www.venturerider.org/forum/showthread.php?t=42358 - main wiring thread http://www.venturerider.org/wiring/88-89%20Yamaha%20Venture%20DU%20Wiring%20Diagram%20Rev%20D.pdf - full wiring diagrm for an 88 Venture Royale. http://www.venturerider.org/wiring/86-89%20Yamaha%20Venture%20Simplified%20Circuit%20Diagram%20Rev%20D.pdf - simplified circuits for 88 Venture. Gary Link to comment Share on other sites More sharing options...
masterofyard Posted October 22, 2011 Author Share #103 Posted October 22, 2011 My mistake. I was testing the wrong harness. All wires tested at around the 110-115 ohms. Link to comment Share on other sites More sharing options...
dingy Posted October 22, 2011 Share #104 Posted October 22, 2011 What about other reading I said to take? Gary Link to comment Share on other sites More sharing options...
masterofyard Posted October 22, 2011 Author Share #105 Posted October 22, 2011 I get no reading when i go from black to ground Link to comment Share on other sites More sharing options...
dingy Posted October 22, 2011 Share #106 Posted October 22, 2011 Review post #95 Gary Link to comment Share on other sites More sharing options...
masterofyard Posted October 22, 2011 Author Share #107 Posted October 22, 2011 The readings were 111 to 112 on the ohms when I went from black to the 4 other terminals. When I check the black to ground I get no reading at all on the meter. Link to comment Share on other sites More sharing options...
masterofyard Posted October 23, 2011 Author Share #108 Posted October 23, 2011 If I am not getting any reading from the black wire, does that mean the igniter os bad, pick up coils are bad, or is there a ground wire that can be bad for the igniter or pick up coil? Link to comment Share on other sites More sharing options...
bkuhr Posted October 23, 2011 Share #109 Posted October 23, 2011 If I am not getting any reading from the black wire, does that mean the igniter os bad, pick up coils are bad, or is there a ground wire that can be bad for the igniter or pick up coil? NO reading to ground is good, the coils are not grounded, any reading would be bad. Link to comment Share on other sites More sharing options...
masterofyard Posted October 23, 2011 Author Share #110 Posted October 23, 2011 ok...since I got the readings that dingy told me and no reading for ground, i am guessing that the tci unit is bad? Link to comment Share on other sites More sharing options...
jasonm. Posted October 23, 2011 Share #111 Posted October 23, 2011 ok, put the carbs back on, now the bike starts, but bailey runs on choke. when i take it off of choke, stalls ut and I cant even give it throttle, stalls right out. I know I am chiming in late. BUT-I have had my carbs off about 5 times in 3 years. Latest this week. Now mine are finally perfect. The first 2 times I hadn't set the floats correctly. Last time I found floats that were sinking due to age. If too high or sinking, the bike runs rich...which does not sound like your issue. Rich would require no choke and takes the gas at the slightest twist with massive increase in RPMS. Floats MUST be set with each carb PERFECTLY level. Using a mini-bubble level. Something many do not do. Yours sounds lean. Which is clear, since originally would only run on choke. Is every carb getting gas? A float needle stuck closed is rare...but happens.But there are no short cuts here for carbs. Did you actually look through the pilot gas jet? Did you soak it in commercial carb cleaner? Did you replace ALL inside rubber plugs and needle jet o-rings and gaskets? The total of these parts alone is about $100. So if you have not spent any money on parts...you have not done yourself any favors. Here's a link..need parts 34,36, 46, 48 for basic servicing and possibly jets and bowl o-rings. I have ordered many parts from this site. They are good.It's a tedious job. http://www.partshark.com/fiche_section_detail.asp?section=8391&category=Motorcycles&make=YAMAHA&year=1987&fveh=224 Link to comment Share on other sites More sharing options...
masterofyard Posted October 25, 2011 Author Share #112 Posted October 25, 2011 A friend of mine is a manager at an electronic manufacturing company. He had on of the techs look at the TCI. They replaced a couple of resistors but said the board looks like it took a voltage spike and was no good. they gave me the TCI back to try. The bike wont even start, even got a back fire out of it. I am guessing that the TCI is no good and I need to get an new one. I am not sure whether to look for a used one or piurchase the one that Dingy recommends from overseas. Link to comment Share on other sites More sharing options...
CrazyHorse Posted October 25, 2011 Share #113 Posted October 25, 2011 A friend of mine is a manager at an electronic manufacturing company. He had on of the techs look at the TCI. They replaced a couple of resistors but said the board looks like it took a voltage spike and was no good. they gave me the TCI back to try. The bike wont even start, even got a back fire out of it. I am guessing that the TCI is no good and I need to get an new one. I am not sure whether to look for a used one or piurchase the one that Dingy recommends from overseas. Dont bother with a used one its a gamble. I have one of the overseas ones and Im pretty happy with it. Needs a little fine tuning but I havent got around to it. Link to comment Share on other sites More sharing options...
masterofyard Posted November 11, 2011 Author Share #114 Posted November 11, 2011 Update: finally recieved the computer from overseas. Hooked it up and bike started right up. All the guages are now working. The bike is running rich believe. I am going to have to get a sync tool and sync the carbs and attempt to adj the air/fuel mixture. Link to comment Share on other sites More sharing options...
Zman Posted November 13, 2011 Share #115 Posted November 13, 2011 First I'm new member to VRO now back to 88 carbs; First do you have a factory service manual; if you don't get one they are more$ than say a climers but way more informative having said that after you get the bike running you want to sync the carbs with a merc stick one carb it set from factory to be the base for the other 3 to sync to, this is not hard to do and you will notice a much smoother idle.ZMAN:322: Link to comment Share on other sites More sharing options...
oppelousas Posted November 13, 2011 Share #116 Posted November 13, 2011 I am a new member but have been lurking for about a week. I just wanted to say this website has really helped me. Especially this particular thread because I was having carb problems also. Thanks to all of you who share your experience and knowledge. I will be on here alot researching and studying. Thanks, Ed Link to comment Share on other sites More sharing options...
Yammer Dan Posted November 13, 2011 Share #117 Posted November 13, 2011 I am a new member but have been lurking for about a week. I just wanted to say this website has really helped me. Especially this particular thread because I was having carb problems also. Thanks to all of you who share your experience and knowledge. I will be on here alot researching and studying. Thanks, Ed Could be the best 12 bucks you will ever spend. WELCOME!!! Link to comment Share on other sites More sharing options...
Scudrunner Posted November 15, 2011 Share #118 Posted November 15, 2011 Just want to add my thanks to my fellow Venturers for helping in solving carb problems for those of us at our wits end. I haven't had time to work on mine yet but I am printing out the tips and hope to find the solution in them. Thanks again for all of you who take the time to assist with your past experiences. Link to comment Share on other sites More sharing options...
Scudrunner Posted November 26, 2011 Share #119 Posted November 26, 2011 My bike still won't run off of full choke. I opened the air box and looked down into the carbs and adjusted the throttle plates to just be cracked open starting with matching number one to number two, then three and four alike. I assume that when they are all in sync that the idle speed will adjust all four carbs the same. Question: In the airbox there is a tube that is connected to a rubber hose leading downward to the engine. Is that hose in the airbox just left open without being attached to anything? Link to comment Share on other sites More sharing options...
Scudrunner Posted December 3, 2011 Share #120 Posted December 3, 2011 I had a chance to search some o he past postings and found my answer regarding the vent tube. Link to comment Share on other sites More sharing options...
Canadian Venture Posted December 14, 2011 Share #121 Posted December 14, 2011 Is there another source for diaphragms beside ebay? They want $330.! When I got my 87 last yr I started having problems after about a week. Shop removed gas tank and, as it had lots of rust in it(tank is steel!) they put in a bunch of screws, bolts and whatever and, rinse and repeat! 3 & 4 times! They said the amount of crap they cleaned out was amazing! $600 bucks later and did not get 3 days out of it! They had not cleaned the lines to the carb from the tank nor did they switch out the fuel filter! Dorks! Plus on ride home, bike on trailer, they had forgotten to put rubber hold down on side fairing! Was flapping in the wind on trailer! And the story continued. As there was a leaking valve cover gasket I decide to shampoo the engine. Got it nice and clean, wouldn't start. Messed around, flushed carbs w/cleaner to no avail. Brought it to another shop(had told other one that I would not let them tune up my electric trolling motor) they got a engine control unit from Yamaha in Toronto(they quoted me $1000!) but was a broken lead to the control unit, therefore no spark. I wanted a set of summer riding gloves but they would not throw in, bill was $550, nor would they give me a deal on $39 gloves! I know that they pay the techs only $15/17/hr! Will be using this forum a lot to do my own work! Link to comment Share on other sites More sharing options...
Yammer Dan Posted December 14, 2011 Share #122 Posted December 14, 2011 Can be had cheaper than that on E-Bay. Just have to watch. Was a place some guys were ordering them from. Someone will know. Link to comment Share on other sites More sharing options...
Yammer Dan Posted December 17, 2011 Share #123 Posted December 17, 2011 80790073198?hash=item4160647f6e&item=280790073198&pt=Motorcycles_Parts_Accessories&vxp=mtr Here is a set. Link to comment Share on other sites More sharing options...
Yammer Dan Posted December 17, 2011 Share #124 Posted December 17, 2011 BRAND NEW CARB SLIDE DIAPHRAGM 4PCS YAMAHA VMX12 XVZ12 ... Link to comment Share on other sites More sharing options...
Scudrunner Posted February 8, 2012 Share #125 Posted February 8, 2012 I have been wondering about the condition om my diaphrams, I don't see any pinholes but they are original and I am having carb problems. I have the airbox off and when I reach down with a tool to manually move the slides back one is very sluggish in coming back compared to the others. The other three move back fairly quickly. What is the normal movement? Thanks. Link to comment Share on other sites More sharing options...
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