Condor Posted April 12, 2018 #427 Posted April 12, 2018 (edited) Got it, Thanks. But what causes the sync to vary so often if new diaphragms and slides? Worn linkage? Were they finicky like that from mile 1? Why these Yamahas as opposed to other engines? Just curious... ...in the Eternal scheme of things, this isn't even the blink of an eye. I've never owned one that goes out of sync quickly. I usually sync them every year or so whether they need it or not. Usually then they only need twerking. Just a thought, but make sure your manifold hose clamps are tight. Manifolds = the rubber sleeves between the carb and the head. If you have a leak it will effect the sync. Maybe a leak that developes when things warm up?? Just a WAS...?? I also use a Carbtune. Not the gauge type. Edited April 12, 2018 by Condor
cowpuc Posted April 12, 2018 #428 Posted April 12, 2018 I have used all types of instruments for syncing carbs on the 1st Gens (and lots of other scoots too) and actually prefer the 4 gauge setup as long as they are good ones with restrictors for adjusting the bounce on the needles. The carb tune slide tool works good too IMHO but the slides tend to get sticky with use and I dont care to fight that issue so I stick with gauges but that is my preferance. @Condor , as far as balancing side to side,, please take a moment and look at my video below starting at 12:00 where I show how to do left to right balance - is this the area of adjustment that you believe is not adjustable with the gauges?? If this is not and I am missing something, please advise I can correct my syncing advice brother!!!
Flyinfool Posted April 12, 2018 #429 Posted April 12, 2018 ...... I also use a Carbtune. Not the gauge type. The trick is on a V4 not only do they need to be balanced front to back but side to side. You can't do that with gauges... Why not??? As long as you have at least 2 gauges you can do a proper sync, having 4 gauges does make it a LOT easier. It does not matter if the gauge is a dial or a bar that slides up and down or a liquid that goes up and down, they are all still vacuum gauges.
snyper316 Posted April 12, 2018 #430 Posted April 12, 2018 Why not??? As long as you have at least 2 gauges you can do a proper sync, having 4 gauges does make it a LOT easier. It does not matter if the gauge is a dial or a bar that slides up and down or a liquid that goes up and down, they are all still vacuum gauges.I wonder if that's the lovely autocorrect because he also talks about twerking...[emoji23][emoji23][emoji23] Never ride faster then your angel can fly. I am as free as the wind on my face.
Freebird Posted April 12, 2018 #431 Posted April 12, 2018 Well I'll add my two cents here. I've been using a Carbtune for many years. I have had decent success with it and think that it does just fine. I agree with Cowpuc that the sticking is a nuisance but some little taps on the tubes seems to work ok. I admit though that it bothers me that there is really no way to calibrate them. You can test them by hooking each tube to the same carb one at a time to see if they are the same but if not, there is really no good way to correct them. V7Goose never liked the Carbtune and I defended it many times in discussions with him but sometimes I just have to admit that I am wrong. I don't understand Condor's comment that you can't adjust them side to side and front to back with the gauges. Maybe I'm not reading correctly what he is saying but you can do anything with a good 4 gauge setup as you can with a Carbtune. In addition to that, you can calibrate them easily when needed. I still have my Carbtune and will probably continue using it but if I were in the market for a new system, I would certainly go with the 4 gauge setup. Just my opinion, your mileage may vary.
Condor Posted April 12, 2018 #432 Posted April 12, 2018 (edited) OK, after thinking about it a bit..... The Carbtune is also an individual reading.. So maybe I'm all wrong in my thinking... Gauges should work just as well.... I take back everything I've posted... It's an old age thing.... And I've deleted the posts.... Edited April 12, 2018 by Condor
Flyinfool Posted April 12, 2018 #433 Posted April 12, 2018 Snype gets the Hot Dog on this one Ty = go to 10:55 to see the screw that sync's #2 to #1 ,, and then go to 12:15 on the timeline to see the screw to set #3 to #4 and also the one to set left side to right side - all found in the video below Hey there Mr Puckster. In your vid you were all cornfused by the cmHg on your gauges. cm is for centimeters, and Hg is the chemical symbol for Mercury. So your gauges are reading the vacuum in centimeters of Mercury. Now don't say I never learned ya nuttin.
cowpuc Posted April 12, 2018 #434 Posted April 12, 2018 OK, after thinking about it a bit..... The Carbtune is also an individual reading.. So maybe I'm all wrong in my thinking... Gauges should work just as well.... I take back everything I've posted... It's an old age thing.... And I've deleted the posts.... Right, wrong or indifferent brother:
cowpuc Posted April 12, 2018 #435 Posted April 12, 2018 Hey there Mr Puckster. In your vid you were all cornfused by the cmHg on your gauges. cm is for centimeters, and Hg is the chemical symbol for Mercury. So your gauges are reading the vacuum in centimeters of Mercury. Now don't say I never learned ya nuttin. I have enough problems controlling, maintaining and paying the taxes on the centimeters of Earth that I own so I really prefer to not be to concerned with my centimeters out there on Mercury... :rasberry::rasberry::rasberry::rasberry: P.S. = 52 degrees farah facette height here on this side of the pond!!!!!! May just get Tweeks out and hook up the gauges to her and check my centimeters of Mercury brother = White Washer got a thrust washer stuck in its throat? :banana::banana:
snyper316 Posted April 12, 2018 #436 Posted April 12, 2018 This neat debate... Never ride faster then your angel can fly. I am as free as the wind on my face.
Flyinfool Posted April 12, 2018 #437 Posted April 12, 2018 I have enough problems controlling, maintaining and paying the taxes on the centimeters of Earth that I own so I really prefer to not be to concerned with my centimeters out there on Mercury... :rasberry::rasberry::rasberry::rasberry: P.S. = 52 degrees farah facette height here on this side of the pond!!!!!! May just get Tweeks out and hook up the gauges to her and check my centimeters of Mercury brother = White Washer got a thrust washer stuck in its throat? :banana::banana: Nope, weekend is coming......... Just a restock and reload.............
cowpuc Posted April 12, 2018 #438 Posted April 12, 2018 Nope, weekend is coming......... Just a restock and reload............. :stickinouttounge:
s.tyler58 Posted April 12, 2018 #439 Posted April 12, 2018 This neat debate... Never ride faster then your angel can fly. I am as free as the wind on my face.Might be time to say Hi to Jack! ...in the Eternal scheme of things, this isn't even the blink of an eye.
luvmy40 Posted April 14, 2018 #440 Posted April 14, 2018 Went for a ride today to blow the last remaining flu bugs out of my system and noticed a strong scent of petrol emanating from under my feet. Stopped at an intersection and sure enough, gasoline running down the left side case! Oh well, I needed to pull the carbs to fix the enricher fork I stuck in there backwards the last time I had them apart anyway. The fuel is coming fro the #3 carb vent pipe so either the float is sticking or the float valve isn't sealing up. They all float checked on the bench and I've ridden around 200 miles since putting her all back together with no issue. I put new fuel line on from the pump to the carbs last time as well.
videoarizona Posted April 15, 2018 #441 Posted April 15, 2018 Put the Boss on the back and hit the two lane twisties for a couple if hundred miles on the RSV. The Shinko 777HDs handled very well! Nap time!
Sylvester Posted April 15, 2018 #442 Posted April 15, 2018 Moved it to the left side of garage, to raise it on the lift so that wheels can be removed for tire replacement. And while it is down I will lube pins in drive assembly and whatever else needs done.
Davin Posted April 15, 2018 #443 Posted April 15, 2018 Took a four hour round trip to Woodford and home again. Flushed and bled the rear brake, repaired a dodgy rear brake switch and all went well. Cruise control is working full time again. Also added some old school highway pegs. Leaving for a 2000km interstate trip tomorrow. Sent from my SM-G950F using Tapatalk
Sylvester Posted April 16, 2018 #444 Posted April 16, 2018 Sylvester is on the lift and wheel removal has begun. I need to re-sync the carbs due to a rough engine after I started it yesterday. If the carbs are still in sync, the equipment manager where I work has done a lot of work on Yamaha engines and told me that it could be high speed jets that need tweeking. That being said I think the new Shinko tires will be on Wednesday. All other service is complete. Looking forward to Freebird's MD.
cowpuc Posted April 16, 2018 #445 Posted April 16, 2018 Sylvester is on the lift and wheel removal has begun. I need to re-sync the carbs due to a rough engine after I started it yesterday. If the carbs are still in sync, the equipment manager where I work has done a lot of work on Yamaha engines and told me that it could be high speed jets that need tweeking. That being said I think the new Shinko tires will be on Wednesday. All other service is complete. Looking forward to Freebird's MD. If ya havent done so, may also drop in some new (stock OEM NGK) plugs gapped at 32 thou (especially if you have been Seafoaming it as SeaFoam has a tendency to glaze the plugs IMHO) and unscrew the plug wire caps and ohm out the caps.. Then clip 1/4 inch of wire off the plug wires before screwing the caps back on..
gggGary Posted April 16, 2018 Author #446 Posted April 16, 2018 Walked by it on the way to the skidsteer to plow the driveways. It's a mess, I rode it in march when there was still a bunch of sand salt on the roads.
gggGary Posted April 16, 2018 Author #447 Posted April 16, 2018 Cruise control is working full time again. mind telling what fixed it? Mine's out again. It's been in and out about 4 times so far. I have a used vacuum pump, I haven't put that on yet.
cowpuc Posted April 16, 2018 #448 Posted April 16, 2018 Took a four hour round trip to Woodford and home again. Flushed and bled the rear brake, repaired a dodgy rear brake switch and all went well. Cruise control is working full time again. Also added some old school highway pegs. Leaving for a 2000km interstate trip tomorrow. https://uploads.tapatalk-cdn.com/20180415/9159fa4a448372ebec0ab3e5a3103050.jpghttps://uploads.tapatalk-cdn.com/20180415/352997b76678d08505a9105c834fc97c.jpghttps://uploads.tapatalk-cdn.com/20180415/a4109dc62189429e6acaacbbbcc4ebb7.jpghttps://uploads.tapatalk-cdn.com/20180415/f7c64627953b076159d7298283fcc6b9.jpghttps://uploads.tapatalk-cdn.com/20180415/c154b2afeb37c690309f408e90e7e43a.jpg Sent from my SM-G950F using Tapatalk GORGEOUS pics Dav!!!!!!!! Hope your 2000k ride is going just SUPER out there today!! RIDE ON BROTHER - DO US FROZEN LOP EARED VR VARMINTS IN THE STATES PROUD!!!!!!
Sylvester Posted April 16, 2018 #449 Posted April 16, 2018 If ya havent done so, may also drop in some new (stock OEM NGK) plugs gapped at 32 thou (especially if you have been Seafoaming it as SeaFoam has a tendency to glaze the plugs IMHO) and unscrew the plug wire caps and ohm out the caps.. Then clip 1/4 inch of wire off the plug wires before screwing the caps back on.. Put all new NKG in last fall when winterizing. Carbs were rebuilt last year and sync completed. Bike ran great. I had it out in March and all was good. Will keep this in mind though, thanks Puc. You are one of the members I listen to.
slowrollwv Posted April 16, 2018 #450 Posted April 16, 2018 I moved mine over to the other garage and put the Grizzly 600 in its place ( don't think I will need it to push any more :snow2: this year if Jeff can keep his fingers out of that white washer of his.
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