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Everything posted by Patch
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Which is normal! Freebird there is a lot to the mods you mentioned which you plan on to improve! I am certainly going to see this differently because of my addiction to combustion. I'd like to take that input and post a new thread around your mods, if you are OK with that?
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Exactly my point frebird, but I know first hand that we can accelerate in 5th providing the output is there. No way can I rap my head around Yamaha producing a bike that can't accelerate in 5th or maintain speed. Rev limits aside she has to pull some in 5th.
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Puc why is that bike running so hot? I know I shouldn't ask in this thread Patch
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So a related issue that others have posted and also one that I had on my gen 1.5. If you are not powering on all 4, 5th is a miserable gear. Now to be clear here today's explanation of bogging is different then your other post on bogging and, is why it was suggested that you check the air box! Feedback is important! Not powering on all 4 does not mean you have a miss; it means that the combustion cycle is weak on 1 or more cylinders! This can be compression related or improper carb rebuilds. I think you mentioned that you are the 4th owner? Perhaps there is an issue that simply needs discovery! Think about it, if your are in 5th and set cruise, then begin to bleed speed as mentioned there must be a reason. I would start with a compression test it's easy and there's very little cost involved if you have some tools. Patch Don't forget the feedback
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Delinked Rear Brakes are weak
Patch replied to rrod1393's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Yes that is exactly the point if we unbalance to find a new or to impose a new balance, regardless the motivation, the entire circuit must be a part of the consideration for cause and effect. One of the interpretations I have been visualizing reading these posts with regards to - can't lock rear wheel or more control up front, or more braking power up front - is that the poster must be in an upright position when he/she is wanting to lock the brakes? That's not real world riding! Also and this happened to SK an I last fall; we ran up to a family of Geese crossing the HW while on a down grade well leaned in on hot asphalt. All in here I'd say I grabbed front before I had time to peddle down!! Lets think about that, 1 rotor because mine are linked - still pushing in likely 3rd- then peddle and clutch or clutch and peddle. In such a touring situation I am not in "full patch contact" when I began braking! I would rather keep the odds on not loosing grip at all, because we know that once that starts it always means lost of control and usually end badly. So I feel too much power up front in a panic stop will likely cause a drop as the springs begin to push back and, you are in a forward position or have a passenger out of position as well if riding straight up. If leaned well like I said break grip and who knows.. -
Not one to dismiss what others experience with their take in choice of Bikes;but; seems to me GW has moved from thrill to a different market class: and also that, the GL 1500 may just be the last of say our crowd? Anyways for myself in touring the VR1300 was a very good fit for my style. I absolutely loved swinging the clever in 2nd after timing my entrance on to the HWs over the years and just ripping through 3rd! Of course this was after I spent the time getting her to giddy-up when I dug my spurs in! You may know I've run some modified 1100 Kats, this one time my boy and I were on an inter city HW low speed stretch of nice asphalt at a light early one morning. My boy hadn't kept up with the work I'd done on the VR. When we took off he just in front and just rolling I let it rip in 1st then quick shifted to 2nd by the time 3rd was up I slowed for the next set of lights. As he pull up he lifted his visor smiled and shook his head, thinking back he was likely wondering if I was ever going to ride like a mature fellow? No way would I take the Kat in a fare fight on a straight run but I can take her by surprise..lol Not sure if any of us here have had the opportunity to ride far on a Cavalcade? I can tell you that should you find one running on all 4 and dialed in, those bikes can really move, very much an old style ride but very comfortable! I often rode her sun up and past sun down, endless torque all gears. I'm putting an engine back together for her now, her finish 1/2 done is blue marble over black pearl. I'm cutting back the marble to a more 50/50 paint as I found the marble took too much of her old style/look away.
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Sidestand Switch
Patch replied to Donvito's topic in Venture and Venture Royale Tech Talk ('83 - '93)
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Just because you need a wild card to ponder;) Not sure which bike this was on but,, it turned out to be a dirty ignition switch! ACC contact
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Ok below is the setup I would use. It isn't expensive and again available at local parts stores. Before I explain the homemade version lets look at some of the results. You certainly have 1 pickup coil that is on the limits for me it is done because she hasn't the speed of the others! Both ing coils are also just above the limits, they are suppose to be below 3! More importantly nowhere have I read the house V or the coil input voltage? For the test and while looking through my shop at stuff you will likely have.. Take a 10" insulated 10ga. wire and strip 1/2" off one side, twist tight with pliers and the other side strip 1" and using your pliers and a star screwdriver make a loop around then twist it with the pliers so its neat and tight, then slip the driver out. The end with the eye goes into the HT boot and the other end - while holding with insulated pliers on the wire shielding, touch that end to the top of the spark plug and start the bike! Just focus on the wire and it proximity to the contact of the plug conductor. 6mm is the minimum air gap that the ignition coil must jump, lets call this a heavy 1/4" before missing! So see how high you can gap it before the miss shows up? Mark that down! Best not try to measure with anything conductive;) Same plug after the above cut the gap to 1/8 +- let her run like that for 30/40 seconds. Does she miss at all? Mark that down as 1/8" test Then shut the bike down and pick you next plug. Try not to run the engine without the plugs firing as we will be accumulating unburnt fuel in the circuit, this might cause confusion. Sun glasses might help you during the test instead of trying to work in the dark. Need I remind you "no pacemakers" around 15000V My guess is that if we see one plug consistently missing on the 1/8" test, it will most likely be the pickup. Patch
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I have noticed a common thread with the majority of members on this forum; just all seem to be way to polite, hard to say no!
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Freeby venture trouble idling
Patch replied to poorwhiteboy's topic in Venture and Venture Royale Tech Talk ('83 - '93)
There seems to me to be one uncertainty in the OP. Do you like this bike enough to turn it into a project? If so you need a budget to work with or from. I am working on a post for just such a turn as is this or say your situation. Problem is, engine fixes come easy to me, alphabet not so much..lol Patch -
Wow! So what is it that tells you there is a miss on all 4? You mentioned timing light but also that you couldn't track it. The miss is both when the bike is cold or only at operating temperature? If it is all 4, there must be a common link.. So proving it is all 4 is a must. I know 2 ways one uses the old cheap setup for a spark light tester ( still sold at part stores) the other is the gap tester (which can be done with a screwdriver and a ...) if you want instructions on how let me know. Anyways the idea is to run the engine at ideal then increase and maintain rpms by a 1000 till you get to 5000ish allowing 30 ish seconds at each rise to see if you can pin the range or if it's throughout. Be cautious that you don't overheat the old girl..
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Air ride problems
Patch replied to JimboSlice's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Double Yikes, running that road! Remember the height and length of the Venture... Wouldn't want my head over those double lines!! -
idle and sync issues?
Patch replied to luvmy40's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Regarding compression testing the idea is to get the crank to as high a speed as possible. So no plugs helps this potential. Hard to fill the cylinders faster when the carbs are off making this a preferred way. However if you are just monitoring for records then of course keep them on. So the most recent test posted do not reflect true readings. Deceleration provides best results for shaking off carbon, also helps the ring landings providing they are not already packed. I think you may be chasing the wrong tune for the bike. Time will show you other options that work better engine to engine. Books, articles, posts and a like are knowledge based, how you implement or understand the results is what matters because, that will determine what the fix is. -
Air Mix Screw Setting
Patch replied to .45Cole's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Wow I remember that now that you mention it. The problem is the compromise of dragging the mix down! CVs are close enough for the level of design our bikes have. 2mm maybe 4 mm for sure but it has to flow through meaning porting.. -
idle and sync issues?
Patch replied to luvmy40's topic in Venture and Venture Royale Tech Talk ('83 - '93)
I know it seems a lot to absorb or the disappointment of it but, addressing it head on is the better approach in my experience. There are ways to knock compression down quickly if you choose an aggressive approach which is what I would do if it were in my shop. Regarding the plugs: my read is they aren't running hot enough to self clean, so all the problems will stay in play. Regarding vacuum leaks: there may be some but, that would mean lean and that would also mean excess heat, which you don't have! Anyways young fellow let me know if I can help further. Patch -
idle and sync issues?
Patch replied to luvmy40's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Interesting the manual I am looking at is standard is 142 minimum is 128 and max is 156 psi. -
Air Mix Screw Setting
Patch replied to .45Cole's topic in Venture and Venture Royale Tech Talk ('83 - '93)
It's all good Bongo. The most difficult regardless of engine is helping others that "with the best of intentions" want to NASA tune an old jug with old carbs. The ratios for me at least are secret not just to me, and truth is even if we know, we don't say;) If I recall you are or were looking at an injection system for one of your projects? You can get a lot closer to ideal and maintain but not with carbs. The best we do is dial in to suit that one circuit at the time of,, and for a short time. -
idle and sync issues?
Patch replied to luvmy40's topic in Venture and Venture Royale Tech Talk ('83 - '93)
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idle and sync issues?
Patch replied to luvmy40's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Hey Chaharley, good question dude. Carbon is a problem because we can break it up, we can also say we dissolved it but that isn't really the case. The problem I see with this much carbon is what happens after it becomes free to move! If when writing I knew the limit was 156 hmm not sure if I would have forwarded the suggestion. We or I would rather see the carbon leave through exhaust. So if anybody is interested there are cleaning chemicals such as may be used on engines with plenums. I thought about it in the wee hours, I suppose one could try through the the crankcase ventilation at the bottom of the air box? Again haven't worked on the 1200 so am not familiar with the air box set up! -
idle and sync issues?
Patch replied to luvmy40's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Sorry Puc I must be missing something? The bit of carbon can fly with the pressurized air as can the chemical used to soften. If we don't blow out the chamber one she will be hard to start after testing and 2 you could plug the compression tester up! True I haven't had the pleasure of working on the 1200 so what am I missing? -
idle and sync issues?
Patch replied to luvmy40's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Sorry guys I Had needed to shut down for a while. The compression numbers were very much on my mind so I just looked them up. Now I get why there are so many who swear by these bikes. Amazing how tough a build it is, for it to not show signs or blow gaskets with a limit of 156 lbs that's 44 lbs over WOW. Could these numbers be wrong? -
idle and sync issues?
Patch replied to luvmy40's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Good day Luv my shoulder is keeping me up so I thought I’d put together my thoughts on how to resolve the issues. “So here's the deal. No matter how I set the pilot circuits, I always either have a lot of popping on deceleration or sluggish throttle response off idle. Right now i'm getting both. She pops like crazy on decel and takes forever to warm up. Once warm, the throttle response is good. She's also developed a lope at idle. An intermittent "miss". I haven't investigated the miss as yet. “ So here’s the deal, you can not properly tune the CV carbs under these parameters. When I read Carls post I could see what he was thinking and I agree, she is pumping unburnt fuel into the collector. In part because of the crazing however the bigger picture is she is choked with carbon and as mentioned the carbon is keeping the combustion temp down even though the compression is high! The reasons for this ise as stated in my earlier post. Here is somethings to remember moving forward, it is because you took the compression you have already begun to turn this around. If the compression had been taken long ago when the carbs were misbehaving, you, the forum could have reached a corrective decision long ago. I believe you need to decarbonize the cylinders. There are risks you should know up front. I assume the 1200 is also a standard 170 psi you are between 180 low & 190 high. This is not a Seafoam in the tank fix. You could try a 50/50 mix but I doubt it? It’s easy and cheap if you want to, get 2 cans and give it a try. Below is how I would attempt it. You will need to cool the engine with a fan or 2 both blowing across the rad - we don’t want to melt her down! You’ll need to find the sweet spot with the rpm as the pistons will need pressure, guessing between 15 and 1800 rpm. With the odd twist of the throttle. Keep your eye on the temp gauge keeping it below the red area is all you need concern over. Blow it out with compress air and a rag around the nozzle to catch any debris. Then retest The risks: well you might end up below standard or the high ones might end up lower then the low ones now. This is due to the abrasive nature of the carbon and it rubbing on the walls! Again this is firsthand experience. But I have had them level very close, within couple of pis more often than not but with use of more aggressive chem's! We can’t put back the ware! I wrote up a carb check list if you want but, it's possible your rebuild corrected the issue? This says a lot right: :"My last tank ran 39.5 MPG as close as I can figure by filling to the same level in the neck visually. Up till now I'd been getting 33-35 mpg and before the carb rebuild I was getting 28-29 mpg." PS:\ that's a 50/50 bypass the tank, container to the pump -
Air Mix Screw Setting
Patch replied to .45Cole's topic in Venture and Venture Royale Tech Talk ('83 - '93)
Yep quite the learning curve. They can be sensitive to balance when any one component is incorrectly set, kind of like chasing your tail. After the 5th or 6th time around the bike its time to reach out. So we can put this one in the win column for you, have a safe season. Patch