|
| HooRad | | Set |  |  | | Reg. Date | : | 19/01/2010 | | Posts | : | 280 | | Location | : | Richmond, VA, United States |
|
| | Posted : 22 Mar 2010 - 22:39 Post title : Found the hose problem! | | | So as I've posted before, I had a problem with my Bird running rough at idle, stalling repeatedly and popping on decel way too much. Initially I thought it was bad gas as it happened right after a fill up at about 400 miles. I took it to the dealer and they told me it was an unattached air intake hose. I got the bike back and it was as good as new. Until a couple hundred miles later, at which time it occurred again! Now armed with a LED flashlight I found the giant sucking sound. Turns out it was a pretty well hidden under the gas take, in between and in front of the cylinder heads (sort of).
Here's a wide angle shot to get oriented...
Now a more close up shot.
Just thought that I put this out there so others could learn from my problems.
| Not likely to die of natural causes. At least I hope not.
|
|
|
|
| daz | | Zeus | |  | | Reg. Date | : | 12/05/2009 | | Posts | : | 7,729 | | Location | : | United States |
|
| | Posted : 22 Mar 2010 - 23:34 Post title : Re: Found the hose problem! (Re: HooRad) | | | Good going ! Glad u got it sorted.
Boomer.....how bout putting this in the tech vault? This is an important bit of info to keep on file.
| 2010 Blue/White Thunderbird, "Brutus". 1700 kit, short tors, gutted cat, UNI filter, filter seal off, custom tune. Brutus in his native habitat: Link
| | Post edited by daz on 22 Mar 2010 - 23:34 |
|
|
|
| mad_angler1 | | Chaac | |  | | Reg. Date | : | 18/10/2009 | | Posts | : | 511 | | Location | : | United Kingdom |
|
| | Posted : 23 Mar 2010 - 11:42 Post title : Re: Found the hose problem! (Re: HooRad) | | | as i thought when i posted on your other post, that is the RH map sensor hose, attaches to the top of the throttle bodies, i would also check the LH one as well that sits about 1 inch back from that on the the other side.
|
|
|
|
| ray548 | | Set | |  | | Reg. Date | : | 09/02/2010 | | Posts | : | 299 | | Location | : | sylmar, CA, United States |
|
| | Posted : 23 Mar 2010 - 14:39 Post title : Re: Found the hose problem! (Re: mad_angler1) | | | I had the same thing happen. Came back from a ride 2 weeks ago and the bike kept stalling. The check engine light stayed on. Took it to the dealer. The said a hose came off. At first they said it was warranted. Of course I said something, like this is our 3rd Triumph in 3 years from you. No charge.
| 2010 TB, 2007 America
2009 Black Bonnie
owned by daughter, but fun to borrow
|
|
|
|
| venator1226 | | Set | |  | | Reg. Date | : | 22/11/2009 | | Posts | : | 108 | | Location | : | United States |
|
| | Posted : 25 Mar 2010 - 11:25 Post title : Re: Found the hose problem! (Re: ray548) | | | This must be a common problem.....
there are 2 hoses that can come off...the one you see in the pic and one further back that requires removing the tank.....
From what I was told you have a soft rubber tube, a hard plastic one then another soft rubber tube to the map sensor.
|
|
|
|
| airguy | | Set | |  | | Reg. Date | : | 18/10/2008 | | Posts | : | 6 | | Location | : | Romeoville, IL, United States |
|
| | Posted : 16 Apr 2010 - 20:06 Post title : Re: Found the hose problem! (Re: venator1226) | | | I am having the same problem. I found the hose shown before checking and sure enough it was off. Put it back on and things were better but not good. Got in and looked again the following evening and found the vacuum cap from the inboard port on the right side throttle body missing. Excellent! NOT!!! Road it home from a buddy's place and it seemed fine. Road to work the next AM and same shite. Dealer can get the bike in on Wednesday of next week. That makes me a bit nervous as I am planning to be on the road the following Thursday and if they need to order parts. Well, enough said about that. I think I am going to take the tank off and inspect and tighten all the little hidden connectors and see if there is another place the hoses are popping.
This sounds pretty common. I wonder why and what the main cause is? Too much back pressure being generated somehow somewhere and blowing the caps/connectors? Loose fittings to begin with? Expansion and contraction of fittings due to temp variations? Or, some combination thereof? My problem occurred sitting in my garage overnight. Parked it and all was fine. Got on it in the AM and the check engine light never went off after start. Road it thinking maybe it would work itself out. WRONG!
Will let you know if I discover anything tonight.
| ----------------------------------------------------------------------------------------------------
"Some people are like a Slinky.....not really good for anything, but you still can't help but smile when you see one tumble down the stairs."
----------------------------------------------------------------------------------------------------
|
|
|
|
| HooRad | | Set | | | | Reg. Date | : | 19/01/2010 | | Posts | : | 280 | | Location | : | Richmond, VA, United States |
|
| | Posted : 18 Apr 2010 - 16:34 Post title : Re: Found the hose problem! (Re: airguy) | | |
airguy wrote:
Got in and looked again the following evening and found the vacuum cap from the inboard port on the right side throttle body missing. |
|
It's funny that you mention that since I found the vacuum cap missing at the same time that my hose was unattached as well. Maybe that's the source of the problem! Ever since I replaced the vacuum cap and re-attached the hose, I haven't had any problems. Thoughts? 
| Not likely to die of natural causes. At least I hope not.
|
|
|
|
| davetac1 | | Thunderbird | | | Reg. Date | : | 06/09/2010 | | Posts | : | 8,379 | | Location | : | Haverhill, Ma., United States |
|
| | Posted : 07 Sep 2010 - 03:33 Post title : Re: Found the hose problem! (Re: HooRad) | | | Map means,MANIFOLD ABSOLUTE PRESSURE and is used as an input sensor for the ECM[electronic control module].This sensor is attached to the intake manifold via a rubber hose[vacuum line],atleast on the automobile.Its function is to monitor manifold vacuum under open, closed,or partial throttle conditions, and is used to supply this information,along with other sensors, to the ECM to adjust the fuel mixture accordingly.And since the motorcycle industry has been forced into the emission thing like the automobile industry,all these sensors along with the FI and ECM had to be implemented in order for the motorcycle to meet our U.S. emission standards before it could be sold here in the States.
Anyways,the MAP sensor reads vacuum which would be negative pressure.So the only way I can think of that it would fall off is,either it wasn't pushed on all the way by the factory,heat from the engine [the 1600 does make a lot of heat] expanded the hose and or plastic coupling to the point it became loose and fall off,or,if the engine backfired for some reason creating a positive pressure[back pressure] and blow the hose off. So since I too have a new Bird,I'll have to take a look at those hoses.Thank you for the tip. Dave!!!
|
|
|
|
| TVL65 | | Set | | | Reg. Date | : | 06/09/2010 | | Posts | : | 98 | | Location | : | wayne, NJ, United States |
|
| | Posted : 13 Sep 2010 - 20:59 Post title : Re: Found the hose problem! (Re: davetac1) | | |
Mine blew off lastweek while riding at 50 mph, it actually flew up & hit me in the chest! I pulled over & noticed the bike was running badly, uhh ohh I thought. I simply put it back on, but being careful not to burn my hand under there. I'm annoyed at that happening, before it was a coolant hose leaking & fixed by the dealer.
|
|
|
|
| Birdy68 | | Thor | |  | | Reg. Date | : | 16/07/2009 | | Posts | : | 3,352 | | Location | : | Bad Zurzach, Aargau, Switzerland |
|
| | Posted : 14 Sep 2010 - 09:30 Post title : Re: Found the hose problem! (Re: TVL65) | | |
TVL65 wrote:
... before it was a coolant hose leaking & fixed by the dealer..... |
|
... who carefully loosened the vacuum hose hoping you would call in for an appointment to fix it! $$$$$$
Makes you think!
| Birdy68
-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-x-
Leave the pork pies for now - get the sausage rolls while they're hot!
 -x-  -x- 
more info at Fuelly.com
|
|
|
|
| mat1600 | | Thunderbird | |  | | Reg. Date | : | 06/03/2010 | | Posts | : | 8,596 | | Location | : | Bridlington, Democratic Independant State of Yorkshire, United Kingdom |
|
| | Posted : 14 Sep 2010 - 11:38 Post title : Re: Found the hose problem! (Re: Birdy68) | | | If a hose problem were to happen, is it possible to remove the tank at roadside armed with 'the' allen wrench provided or are other tools needed. I am just trying to get a kit together but dont want to be towing a multi draw chest behind me.
| My first natural instinct is to breathe. My second is to evade tax's.
|
|
|
|
| BaltoThunder | | Set | |  | | Reg. Date | : | 16/10/2009 | | Posts | : | 43 | | Location | : | United States |
|
| | Posted : 18 Oct 2010 - 00:53 Post title : Re: Found the hose problem! (Re: davetac1) | | | If my recent experience is an indication, any backfire through the carbs, say on a bad startup, is apparently enough to blow the hoses off their nipples.
| Ride, shoot straight, and speak the truth!
2nd Officer Harbor Chapter #215 Southern Cruisers Riding Club
|
|
|
|
| DizzE | | Thor | |  | | Reg. Date | : | 12/07/2010 | | Posts | : | 3,141 | | Location | : | Sunnyvale, CA, United States |
|
| | Posted : 18 Oct 2010 - 02:05 Post title : Re: Found the hose problem! (Re: mat1600) | | | Lifting the tank involves, losing the screws ....ahhhmm, I mean loosening the instrument cluster, un-plugging it,
and proping the tank up, hinged as it is, below the seat.
I think I'd depend on 'limp home mode.'
|
|
|