82 GS850GLZ will not rev out.

[79xs]

Yes, the airbox has been on and off. I left it installed once I knew the carbs didn't seem to be my problem. In one of my posts I explained that I ran another leak test on the carbs and the airbox, they haven't been off since then. Either way, the bike is doing a lot better since I messed with the wiring. I'm going to install that relay mod tonight.

 

[Nessism]

Yes, the airbox has been on and off. I left it installed once I knew the carbs didn't seem to be my problem. In one of my posts I explained that I ran another leak test on the carbs and the airbox, they haven't been off since then. Either way, the bike is doing a lot better since I messed with the wiring. I'm going to install that relay mod tonight.

Not sure if you realize but the GS family of bikes won't run for crap with stock jetting unless the airbox is installed, all the boots are properly sealed, the filter is inside the airbox, and the end caps on the airbox are sealed with fresh foam. The system is very sensitive.

A hanging idle is often a result of an intake problem, lean running. Spraying WD-40 and the like around the engine has proven to be ineffective on GS bikes so keep this in mind for the future. Where are the pilot screws adjusted? Most GS's run best with 2.5 turns open, some require more. A poor sync job can also cause a hanging idle.


Good luck, hope you figure it out soon.

 

[RipRoaringFun]

Not sure if you realize but the GS family of bikes won't run for crap with stock jetting unless the airbox is installed, all the boots are properly sealed, the filter is inside the airbox, and the end caps on the airbox are sealed with fresh foam. The system is very sensitive.

A hanging idle is often a result of an intake problem, lean running. Spraying WD-40 and the like around the engine has proven to be ineffective on GS bikes so keep this in mind for the future. Where are the pilot screws adjusted? Most GS's run best with 2.5 turns open, some require more. A poor sync job can also cause a hanging idle.


Good luck, hope you figure it out soon.

Question -- does the 1981 gs1100Ex have a sync adjustment?
Also: could a bad pilot screw adjustment (the screw at the top front intake side on each carb) could a bad pilot screw adjustment cause white plugs (lean/too hot)?

 

[Nessism]

Question -- does the 1981 gs1100Ex have a sync adjustment?
Also: could a bad pilot screw adjustment (the screw at the top front intake side on each carb) could a bad pilot screw adjustment cause white plugs (lean/too hot)?

Yes of course it has a sync. Don't you have a manual for your bike? If not, basscliff's site has a link so you can download one for free.

Misadjusted pilot screws won't cause white plugs since the adjustment is just for the low speed/idle circuit.

 

[RipRoaringFun]

Yes of course it has a sync. Don't you have a manual for your bike? If not, basscliff's site has a link so you can download one for free.

Misadjusted pilot screws won't cause white plugs since the adjustment is just for the low speed/idle circuit.

I just found the synchronization in the manual, I searched for 'synchronize' and 'synch' but it's listed as 'Balancing' go figure.

Question for you -- is it possible that misadjusted pilot screws would cause a high idle that sloooowly drops down? And do you think my exposed air filter shown below is the source of a 'leak' ?

 

[Suzuki_Don]

Your symptom sounds more like am air leak to me. The breathing will be different (different air flow) with the setup that you have. The jets in the carbs are for the standard airbox and aircleaner setup. If you alter this as you have done then expext to rejet.

 

[Nessism]

Dude, you are threadjacking here. You might want to consider starting your own thread.

Oh, with the back half of the airbox missing the carbs will have to be rejetted or the bike won't run right.

 

[RipRoaringFun]

Dude, you are threadjacking here. You might want to consider starting your own thread.

Oh, with the back half of the airbox missing the carbs will have to be rejetted or the bike won't run right.

Sorry if I offended you. I knew *full well* what I was doing with the question -- it's always a good thing that users search the forum to see if there are related posts/threads already out there -- so I spent a fair chunk of time doing that -- and discovered, after spending time searching the database of past posts -- I found you discussing *exactly* what I sought help for.

I reasoned 'well it's probably Okay to pose one question to this guy who seems quite knowledgeable about this problem I have in this thread' and 'thread jacking' to me means creating a new sub-thread (not just one question like mine) in an existing thread.

Next time I wont even post a question like this, should I just send a direct email to that person? The sensitivity to this is all over the map on the bike forums on the web, did not think one question would be offensive. And I did start a thread btw, but also searched the database, and that's just making full use of the board here I reckon.

 

[cowboyup3371]

Rip, it's best to start a new thread even if the subject is similar since 1) the original poster's question and points can get lost in the second discussion, and 2) you may not get the full service you need especially if something is different - especially since the original question was concerning an 850 and you asked about an 1100 with different settings. If you'd rather not, then at least keep an eye on the thread you found in case the information offered up to the OP relates to yours as well.

 

[Nessism]

Sorry if I offended you. I knew *full well* what I was doing with the question -- it's always a good thing that users search the forum to see if there are related posts/threads already out there -- so I spent a fair chunk of time doing that -- and discovered, after spending time searching the database of past posts -- I found you discussing *exactly* what I sought help for.

I reasoned 'well it's probably Okay to pose one question to this guy who seems quite knowledgeable about this problem I have in this thread' and 'thread jacking' to me means creating a new sub-thread (not just one question like mine) in an existing thread.

Next time I wont even post a question like this, should I just send a direct email to that person? The sensitivity to this is all over the map on the bike forums on the web, did not think one question would be offensive. And I did start a thread btw, but also searched the database, and that's just making full use of the board here I reckon.

I'm one of the grumps around here regarding people posting repetitious threads and thread jacking, but no harm done here. Honestly, there are hundreds of threads here detailing the importance of keeping the bike stock otherwise the need to rejet the carbs, and of course carb sync is necessary.

You have a 30 year old motorcycle that needs maintenance. Rebuild the carbs, replace all O-rings inside the carbs and on the intake boots, sync the carbs, set the pilot screws to 2.5 turns open and then tune from there based on achieving the highest idle, adjust the valves, etc. This is all basic maintenance that should be done before the bike is allowed to leave the garage in my view.

All this info is in the archives so don't be afraid to search. Use Titles Only in the advance search feature to really hone in on the topic you are interested in. Post new threads when you can't find the answer after searching. And no short cuts allowed in the maintenance unless you don't care about getting stranded somewhere.:evil:

 

[BassCliff]

Hi,

There's a big blue button at the top of each section that says "New Thread". If you're not going to add to the present discussion, seek clarification, or suggest a resolution to an issue, it's just polite to ask your question in a new thread. Like Mr. cowboyup3371 stated, it alleviates confusion.

Its seems most of us use the "linear" tread view (oldest first) rather than a thread "tree" view. So "sub-threads" all look the same and are just listed chronologically.

Using a title that pertains specifically to your issue is also a big help, especially when a search is being performed. If your title says "Hey, I got a problem" rather than "79 GS750 Carbs" then, even though there may be good information under the first title, it will be much harder to find using the Search Function. Searching "Titles Only" cuts down on a lot of the "false positives" when looking through the archives.


Thank you for your indulgence,

BassCliff

 

[RipRoaringFun]

Okay right on, when I search on an issue and find a knowledgeable guy in a related thread, instead of quoting him in that thread I will send a personal email next time.......it was either email directly or quote the knowledgeable person in that related thread, and I chose wrong, live and learn, I didn't know how else to ask him as I had already posted my thread on my issue...and he seemed to know the answer how else can I ask him so I'll use email next time....sorry.
thanks for the policy advice BC

Hi,

There's a big blue button at the top of each section that says "New Thread". If you're not going to add to the present discussion, seek clarification, or suggest a resolution to an issue, it's just polite to ask your question in a new thread. Like Mr. cowboyup3371 stated, it alleviates confusion.

Its seems most of us use the "linear" tread view (oldest first) rather than a thread "tree" view. So "sub-threads" all look the same and are just listed chronologically.

Using a title that pertains specifically to your issue is also a big help, especially when a search is being performed. If your title says "Hey, I got a problem" rather than "79 GS750 Carbs" then, even though there may be good information under the first title, it will be much harder to find using the Search Function. Searching "Titles Only" cuts down on a lot of the "false positives" when looking through the archives.


Thank you for your indulgence,

BassCliff

 

[cowboyup3371]

RipRoaring, I think you are misunderstanding. You don't need to send a personal email so much as just start your own thread AFTER doing the searching to see if you question has already been answered.

Did you figure out your issue yet?

 

[RipRoaringFun]

RipRoaring, I think you are misunderstanding. You don't need to send a personal email so much as just start your own thread AFTER doing the searching to see if you question has already been answered.

Did you figure out your issue yet?

Nope. I've been working on this lean problem for a while. Thought it was the intake boots but it's not.


Here's the point. If we see a guy on a past post who seems like he can help you, I DONT think you folks are saying "Look just because you think someone in another thread can help you, you should just post your question and hope that one person who you're pretty sure can help you responds."

That's just not using this forum as a resource. It's like being a student in a classroom -- if you have a question and you know the teacher can help you dont sit there and hope they find out you need their help -- you raise your hand.

Point is, I had *already* posted my question and that one guy who I wanted help from HAD NOT ANSWERED. What am I supposed to do -- say to myself "shoot I think he can help but I can't ask him directly"

 

[Suzuki_Don]

Hey RRF the best option that I have found is to start a new thread with my problem outlined and then send a PM to the person I would like to contribute and ask them to get involved in the thread and give some answers that I need to solve my issue.

If you email or PM the question to an expert like NESSISM or CHEF then everyone else is deprived of the answer when they could have a similar problem.

 

[Nessism]

Question for you -- is it possible that misadjusted pilot screws would cause a high idle that sloooowly drops down? And do you think my exposed air filter shown below is the source of a 'leak' ?

The answer to this question is yes, misadjusted pilot screws CAN cause a hanging idle. Also, since your bike is missing the back half of the airbox you have a double whammy.

Sync the carbs
Open the pilot screws to about 3 turns, and then tweak to achieve the best idle

If the idle is still hanging you may have to move up on the pilot jet size. Of course, if the intake boots are leaking that will cause a high idle too. And of course again, this assumes the carbs are clean with fresh O-rings installed and the valves are adjusted.

Good luck.

 

[BassCliff]

Okay right on, when I search on an issue and find a knowledgeable guy in a related thread, instead of quoting him in that thread I will send a personal email next time.......

Hi,

It's really better to start a new thread and ask your question on the forum. That way, many members can add their perspective and everyone can benefit from the discussion.

I have answered many questions via private email or private message. But I think the person posing the question would greatly benefit from all of the experience of the entire membership rather than from just one member.

Don't be shy. We're all mighty neighborly.

Thank you for your indulgence,

BassCliff