carbs #@***#$***@#@#*****. my '95 got some gunk knocked loose in the float bowls and that started this 2 month long ordeal. i cleaned out the junk, and free'd up the floats and stoped the mass fuel leak. but then it wouldnt run right. like it was missing a cylinder. off came the carbs again, and i checked the the jet's and needles and floats again, put it all together, no help. so today they came off again, and i purged all the holes again, and checked the diaphrams which looked good(not great, but not bad). put it together and it runs worse than ever. it idles ok, with an ocasional after fire, but roll the throttle and it just boggs out. what the hell??????? tell me my friends, what do i need???? im thinking new diaphrams, could this be the fix i need? :cry:
I feel your pain...
You did put the airbox all back on, including the caps on the intake snorkle, didn't you?
How about replacing all the little o-rings? The rubber boots between the intake/carbs and carbs/airbox look ok? How about the throttle cable setting? I had mine way too tight and had some issues with it.
Just throwing some stuff out there that I had screwed up before. I'm a terrible mechanic...
i doubt if its the diaphragms. i've had this same problem with mine and each time i pull the carbs, there is a bit of black crud like powder residue laying in the bowl, and the pilot jet is occluded with something (probably some of the black crud) so i clean out the jets (flush with brake cleaner, push a wire thru it, and reassemble). i have the stock inline filter insert in place, and a seperate filter in my fuel line as well as the filter in the tank. where is it coming from? i'm leaning toward the breakdown of something rubber in the fuel line (o-rings or carb crossfeed lines) all these filters are of the mesh type and i am considering going to a paper filter to see if that makes a difference.
did you have anything in your pilot jets? did you flush out the fuel lines with the bowls off? everytime i clean mine, it runs great for awhile.
out of curiosity, when was the last time the valves were adjusted?
If you have the carbs cleaned and it is still not running right, maybe the problem lies on the ignition side.
I chased a problem like this on my old Yamaha XS 650. I went thru the carbs, fuel filter, cleaned the tank over and over again. I finally sprung for new coils and it ran perfect.
well im going to order some new diaphrams(fortunatelythere only $16.00 a pop.) and we'll see if that will fix anything. all the motorheads at work are pretty convinced that this will do it, if not then off to the shop. if this was a cf-6, or cfm-56, or trent 800, or ge-90, or any pratt&whiteny turbin engine i'd be all over it, but a carb mech i 'am not.
If the diaphragms were leaking, you should be able to see the hole or crack. as long as there is no dirt around the lip seal/groove, they should be fine.
You are aware of that tiny lttle fuel filter burried in the fuel line, right? Lot's of us add an in-line filter below the tank.
Are you sure this is fuel-related? A few years ago I went to fire mine up after winter hibernation and had similar problems; sputtering, missing, won't idle. This began a long battle with the carbs, which went on for months and snowballed into jetting them richer. Turned out I also had a coil that was intermittently failing. A little forum research and I found posts about steamer coils prone to fail early. Got it all sorted and love the new jetting (it really was way too lean as well) but it was a pain getting there. Anyway if it is a coil, I hear there is an aftermarket replacement/upgrade, or you can swap to an on-plug coil from TT-600 which is what I did.
Good luck.
Quote from: "aeronca"if this was a cf-6, or cfm-56, or trent 800, or ge-90, or any pratt&whiteny turbin engine i'd be all over it, but a carb mech i 'am not.
So are these aircaft engines or gas turbines for electricity generation?
Quote from: "nightrunner"Quote from: "aeronca"if this was a cf-6, or cfm-56, or trent 800, or ge-90, or any pratt&whiteny turbin engine i'd be all over it, but a carb mech i 'am not.
So are these aircaft engines or gas turbines for electricity generation?
Don't know all of them but the Trent 800 is a Rolls Royce aero engine.
thanks for the info on the coils. i'll have to bring home one of my multi meters and ohm them out.
those were aircraft engine. pretty much all's i see any more are pratts- jt-8 217's, and cfm-56's. im in maintenance for alaska airlines.
Speaking of Alaska Airlines, who exactly is this? :
(http://www.undertheiceberg.com/wp-content/uploads/2006/12/_northamerica_carnival_alaskaair_tail.jpg)
its supposed to be an eskimo, but we all think it looks like bob marley(minus the big joint) :)
Just a generic eskimo, eh?
Okay. I thought we all were supposed to recognize him. :mrgreen:
well, i failed. checked float level, and new diaphrams(although it does seem to idle better now), but still boggs out when i roll the throttle past 2500 rpms. so its off to the shop for the bike and into the booze for me. that might not be a bad trade. maybe its time for fuel injection. :cry:
Sorry for the bad news. That's a lot of work not to have it run right. I was out on mine tonight, it took forever to warm up. In between running off choke and fully warm, it hesitated a lot. Are you sure you got it good and warm?
Quote from: "aeronca"well, i failed. checked float level, and new diaphrams(although it does seem to idle better now), but still boggs out when i roll the throttle past 2500 rpms. so its off to the shop for the bike and into the booze for me. that might not be a bad trade. maybe its time for fuel injection. :cry:
Sorry to hear it. But better to bite the bullet and get to riding again. Mine used to stumble a bit when rolling on the throttle, and I had to rejet it richer to get that to go away. My coils ohmed out fine but were still failing intermittently. High voltage parts can be tricky that way.
Anyway please let us know what the trouble was so the collective can benefit from the diagnosis.
Cheers
the next thing i would try is to double ck the pilot fuel screws under the front of the fuel bowls. sounds like you're running lean. run them in using a cutdown screwdriver about an inch long and note where they were set. reset them at about 2 turns out . run it and duplicate your problem. if its better or worse. change them a 1/4 turn at a time til you get the best performance. my stock jetting is right on the edge of too lean and any change in the airbox at all causes it to bog off idle. my optimal setting is about 1 3/4 turns out.
Quote from: "nightrunner"Sorry to hear it. But better to bite the bullet and get to riding again. Mine used to stumble a bit when rolling on the throttle, and I had to rejet it richer to get that to go away.
Cheers
Mine did the same just after breaking it in...rejet fixed that right up.
I still wanna do the voltage mod you did.
So I had posted over on the Yahoo Tiger group that I have been having trouble with my '98 stalling out until it gets warmed up ever since the mornings here dropped below 50 degrees. I was advised that the carbs are probably adjusted to too rich (I bought the bike in the Phoenix area last July) and plan on doing the adjustments tonight. Long story short, I came across this article: http://www.webbikeworld.com/t2/carb-adjustment/ (http://www.webbikeworld.com/t2/carb-adjustment/) that might be worth it for you to try. I picked up some of this stuff while I was out at the parts store just now and plan to use it to clean things up while I have it apart. It sounds like it can't hurt and you certainly have tried everything else!
Quote from: "RiderX"So I had posted over on the Yahoo Tiger group that I have been having trouble with my '98 stalling out until it gets warmed up ever since the mornings here dropped below 50 degrees. I was advised that the carbs are probably adjusted to too rich (I bought the bike in the Phoenix area last July) and plan on doing the adjustments tonight. Long story short, I came across this article: http://www.webbikeworld.com/t2/carb-adjustment/ (http://www.webbikeworld.com/t2/carb-adjustment/) that might be worth it for you to try. I picked up some of this stuff while I was out at the parts store just now and plan to use it to clean things up while I have it apart. It sounds like it can't hurt and you certainly have tried everything else!
I am on the travel group for Yahoo..but lost my membership to the main forum due to email change and a hate of Yahoo Groups.
If you want to jump into those carbs on a '98...please check out the nice write up Nightrunner did here:
http://www.tigertriple.com/forum/viewtopic.php?p=20893&highlight=#20893
Quote from: "tigerrider"I am on the travel group for Yahoo..but lost my membership to the main forum due to email change and a hate of Yahoo Groups.
If you want to jump into those carbs on a '98...please check out the nice write up Nightrunner did here:
http://www.tigertriple.com/forum/viewtopic.php?p=20893&highlight=#20893
Well I certainly appreciate that info and wish I had it last night! We went round and round with trying to figure out a way to reach the fuel mixture screws on the carbs and finally gave up as it had become too late. I can see now that the best option is just to pull the carbs out all together and then set the screws per this article. We had wondered what a good setting would be and this at least gives us a starting point. Thanks tigerrider!
well brothers and sisters - it's fixed. picked it up from the shop this afternoon and she runs like a trumpet. turns out that on two carbs an "O" ring that sits down where the needle valve runs through the slide, got sucked through the jet. oh well, i guess i should have been more thorough in my inspection. that was the most expencive tank of gas i ever bought. thanks for all the good input and insight to all. :)
That's a new one on me...
Good to have you back.
say mudhen brother, you should post some in-depth pic's of your fender instalation. i think thats my next thing.
Quote from: "RiderX"Well I certainly appreciate that info and wish I had it last night! We went round and round with trying to figure out a way to reach the fuel mixture screws on the carbs and finally gave up as it had become too late. I can see now that the best option is just to pull the carbs out all together and then set the screws per this article. We had wondered what a good setting would be and this at least gives us a starting point. Thanks tigerrider!
Jumping in late here. But colder air would be denser and, seems to me, would lead to a leaner condition. Add to that a cold engine and I'm not surprised its stalling. Anyway I did not read your Yahoo post. Guessing you can't touch the throttle when its cold or it dies?
When I adjusted those screws, I wore a glove and used a tiny (and short) screwdriver to adjust. And I assume you must have had the carbs off at some time. You had to drill out the plugs covering the mixture screws, right? Or did the PO do that? Anyway I found that mine were 2.5-2.75 turns out already so no more room to adjust anyway (3 is about the limit). What I should have done was invest a few bucks and get the right angle gear driven screwdriver that Motion Pro sells for just this purpose.
Anyway good luck with it!
QuoteJumping in late here. But colder air would be denser and, seems to me, would lead to a leaner condition. Add to that a cold engine and I'm not surprised its stalling. Anyway I did not read your Yahoo post. Guessing you can't touch the throttle when its cold or it dies?
When I adjusted those screws, I wore a glove and used a tiny (and short) screwdriver to adjust. And I assume you must have had the carbs off at some time. You had to drill out the plugs covering the mixture screws, right? Or did the PO do that? Anyway I found that mine were 2.5-2.75 turns out already so no more room to adjust anyway (3 is about the limit). What I should have done was invest a few bucks and get the right angle gear driven screwdriver that Motion Pro sells for just this purpose.
So the problem isn't that if I touch the throttle it dies. The problem is that if I don't hang on the throttle and keep it above 2k rpm it stalls. I pulled the covers off last weekend to take a look at adjusting the idle mixture screws and found that I simply couldn't fit my skinny little hands back in to reach the inner carb. I am not sure how this is done without completely pulling the carbs out of the bike. I suppose I will do that next weekend as having it stall at every stoplight on the way in to work is simply not an option. [/quote]
But at some point you must have drilled out the brass plugs that cover the mixture screws, right? If not, you are tryingto reach the wrong screws. Or maybe the Mikuni screws (1994-1997) were not covered to begin with.
They are a couple of gear-driven right-angle screwdrivers you can buy for this job. The good one is about $100. I think I have seen one for around $30. You can check the Tucker-Rocky catalogs on-line. They are definitely in there. But I don't think they sell to the public; maybe, but I think they are distributors only.
nightrunner wrote:
QuoteBut at some point you must have drilled out the brass plugs that cover the mixture screws, right? If not, you are tryingto reach the wrong screws. Or maybe the Mikuni screws (1994-1997) were not covered to begin with.
The previous owner removed the plugs to adjust the screws to pass emissions testing in AZ. I am assuming this may even be what caused the problem I now have here at 2400ft ASL. In any case, right-angle screwdriver or not, I just don't see how to fit it back in there. Perhaps it comes with a mirror or fiber-optic lens that also lets you see where it's going? Sorry, I don't mean to sound facetious, it's just frustrating to not be able to make a simple adjustment like this.
to make a screwdriver for the pilot fuels, i cut a small screwdriver halfway down the handle. when i got to the steel shaft, i pushed the plastic to the tip and cut the shaft at that point, and jammed the tip down into the handle. i now had 2 small screwdrivers after putting the back half on the grinder. i sprayed them white and numbered the flats for reference. it seems the one with the original tip works better. and to get my hand (size 10 glove) to the middle carb, it works easier because i have my oil breather hose cut off with a breather filter on it so i can just swing it out of the way (and i don't worry about dumping the bike over on its side)
well - it was running great. this morning on the way home sitting in the lovely seattle commute, it started dropping one cylinder. by the time i got home 35 miles later it was running like crap. top end was good - lots o power, but horrible low end. lot of hesitation. so it went right back to the dealer. im hoping its a carb issue so it will be covered but im leaning more twords an electrical issue now. maybe a coil or a pick up some where. i'll keep you all posted.
eric
aeronca
Did you get your bike back yet? Sounds like what my Tiger does on occassion. Dealer talked me out of the direct coil replacement (TT600) that I was planning. But, the issue has been hit or miss and won't do it with them. Unresolved at this point for me.
Skoron
funny you should ask. im heading down to pick up my new coil tomorow, and should be back on the road post-haste. i ohm'ed out the old one at work tonight and got 1552K,ohm on the secondary, book say's it should be 10.5k,ohm.quite a bit higher. primary windings were at .4 ohm, just a little low not a big whoop. but the secondaries were way out. i hope this does it. i'll let you know tomorow night.
say brother skoron, i punched in ignition coil on yahoo and an article from "web bike world" poped up. and i'll be damned if it was'nt whats been going on. the authors bike was a thunderbird though(close enough for handgranades). he ended up getting rid of the gill brand coils($130.00 a piece, mind you), and went with a diferent brand. but he had a dead cylinder(intermittent), between idle and higher revs.i just couldnt belive how bad the secondary coils were on mine. maybe by the time i get this damn bike running my new sidi boots will finally come in(but thats another story). :x
Hope the new coil(s) fixes the issue. The triumph part is not cheap but neither is the nylogy coil. That's why I was looking at the TT600 coils and got some good direction from nightrunner as well.
Maybe I need to look at the coils again and measure one more time. Probably wouldn't hurt to pull the carbs, check floats and seals but the dealer might have to do that one for me.
Skoron
well im lost at this point. i put the new coil on and it ran worse. put the old one on and at least it ran like it used to. so i took the coil back to i-90 motorsports and had them test the new and the old coil and they said they were both ok. W.T.F! i got all three at work tonight and ohm'ed them all out and i think the dealers full of it. (oh and by the way there's a 20% restock fee to return the coil. imagine that). im starting to loose faith in the tiger my brothers. i never had this much trouble - evere with any of my jap bikes. oh well im in it now.
It doesn't make any sense that it would run worse with a new coil. If the old coil was good, it should run the same with the new coil. If the old coil is bad, it should run better with the new coil.
Something's is fishy here!
im done, it's in the shop, will let you all know what they fixed. i hate to fail :x
Quote from: "aeronca"im done, it's in the shop, will let you all know what they fixed. i hate to fail :x
Amen...I feel for you. I do it enough that I should be used to it, but it never gets easier...pisses me off, actually...
Would the shop be I 90 Motorsports?
no, i'm mad at them. lynnwood cycle barn.
ok, so in the shop it went. and they replaced the coil that i thought was bad, and the other shop swore up and down was good. they also said they dialed in my carb better. that coil thing pisses me off though. any way, enough crying. im picking it up today and should put a couple hundred miles on it by sunday. i'll let you know how it runs. cant wait to get back to ridding :)
Quote from: "aeronca"im picking it up today and should put a couple hundred miles on it by sunday.
Rock on! Put the spurs to 'er!
I bought by Tiger from those guys last year. I really didn't like the salesman but I liked the bike, so I bought it. Your experience confirms by "gut" feeling about their service department. Maybe I'll see you out riding this weekend.
hey cascade, are you talking about i-90 motorsports? everyone i've ever talked to had nothing good to say about them. it's a shame, but what can you do. maybe they will change. hey, have eat'n at the xxx? we go there once in a while - pretty wild place, and the foods not bad either :) for those not in the know, the xxx is a burger place right off interstate 90 in issaquah, wa.
Yes, I am talking about I90. They are convenient for me, but I dont like the place too much.
I have never tried XXX, been by the place a million times but never went in. I'll check it out.