High Idle

[motoman]

Is this the thread you are raving about Brant?

http://www.xs11.com/forum/showthread.php?t=42489

Again, I am not saying you are wrong (except saying that blaming gas is a cop-out cause gas today has less energy than in the past and requires more fuel to produce the same amount of energy than 100% gas) just offering other experiences.

Plus I enjoy arguing with you Brant!

No it isn't, but those results transferred to another thread I didn't start, but were related in a verified example I gave of some actual changes I made on two differnt occassions at the Colo.Rally.

As far as the arguing/debating part..............you've come to learn the stuff fairly well, and have had no reason to contest any of your respones to those with issues...........just be careful leaving the room, watching for head clearance.

[Radioguylogs]

Rlogs-- maybe this will help--- unwanted revving issues

http://www.xs11.com/forum/showthread...ighlight=Markd

MarkD:

You must have send that response while I was sending mine.

DANG! That is so exactly like my experience. The only difference is that I have TourMax jets instead of K&L. For all we know, they might be made in the same factory.

Thank you for sending that link. I searched "High Idle" and read as many threads as I could before I posted this, and I didn't manage to find yours, as the search turned up several hundred threads.

Based on what you sent, I am hopeful I might be on the right track now.

When I put those TourMax jets in, I knew several respected members warned against any jets other than genuine Mikuni, but it is hard to know when folks are esoteric and when to listen to them.

Maybe I'll be forgiven if this fixes my problem.

I don't know if I'll get my Mikuni jets in time to install them before I go out of town for a week, starting Saturday.

[natemoen]

No it isn't

So help me out then.....where is this post. I don't see anything that pops out at me when looking at your recent posts.

[motoman]

So help me out then.....where is this post. I don't see anything that pops out at me when looking at your recent posts.

Hang on Nate........I'll go on a search here......seem to remember it was just this past week and I think it was in the W.Marshy thread of "3 turns out" or something of that order.

[motoman]

Nope......that twas'nt it.......still lookin'

[motoman]

Can't find it Nate, but the jest of it was the fact that a neighbor,(ancient like me) has an 80Special. Came by my house wonderin' why his idle had dropped to 900rpm.
Could tell from runnin'(all stock and original intake/exhaust) something was a bit off. Now mind you, idle mix tin seal covers had never been disturbed, nor has any of the carbs EVER been disturbed!. Hooked up the CarbTune and saw only the pairs were off. Brought them back together and idle went perfectly back to it 1100rpm original setting.
Point being, with the 1.5 turns out factory seeting, that is one of the smoothest through ALL rpm ranges 11's I've ridden in a long time, and is extremely quick on the upper end.
So, therefore, the known to all of us poor BTU's of todays fuel has zero effect...nil.....none on factorey stock settings.
Another example: Bonz's 80Special, even though extremely low miles on bike, has mixture setting at 1 1/2 turns out from lightly seated. Motor is bout' happy as it gets...through ALL rpm ranges also.
Soccer4me's XJ with the partial tour-pac(pic. of it coming off of PikesPeak in the Colo.rally section) has approx. 125,000mi. on it, no major repairs cept for timing chain and upper guide. It rolls 40mpg all day long at 75-80mph slab speeds and carbs IIRC haven't been 'messed' with.
I can go on and on with examples of models with the later carbs that run PERFECT with factory idle mix. settings and float levels.
What this tells me, is exactly what I've said......true, the fuels of today aren't producing the BTU's they used to, but adding more through float level and mixture mods is not gonna improve the BTU's. That IS a constant, and all that's gonna happen, even though plugs may not necessarily indicate(if runnin' hot coils and iridiun plugs....absolutely no indication) a richer mixture, all these 30-35mpg numbers I see here on the later bikes is IMHO a tell-tale indication of too rich of idle mixtures. And yes, the idle mixtures DO play a part through ALL the rpm ranges, and can have a positive or negative effect on main circuit lean or rich cond. wise.....that IS also a given, and I proved that this past weekend to myself......with about six witnesses.
BTW, I will be adding what I've found from some more experimenting to my other previous carb issue thread, sometime after first part of Aug. as my daughter is getting married.......least that's a good excuse not to have to mess with the damn thing anyways.
It will NOT defeat me......I shall prevail.....just a matter of time........of which I have alot of.

[MarkD]

You are more than welcome, RLogs. I did turn the mix screws out around 2 1/2 turns out. Be very careful no tips of the screw needles are broken off in the carb bodies, effectively rendering all needle adjustments useless. My bike runs very well and will idle at 950 RPM for a long time if necessary. These guys on here are the ones who helped me figure this whole carbie thing out, so I'm glad I could be of help.

[natemoen]

(snip)
So, therefore, the known to all of us poor BTU's of todays fuel has zero effect...nil.....none on factorey stock settings.
(snip)

So then if it were true that ethanol does not effect performance/gas mileage then why is it that if I run my cage on E85 that my gas mileage does down almost 33%?

Why is it that it you need to put larger sized/higher flow fuel injectors, or larger jets in to carbs into vehicles if you intend to convert them to E85 or higher?

[motoman]

So then if it were true that ethanol does not effect performance/gas mileage then why is it that if I run my cage on E85 that my gas mileage does down almost 33%?

Why is it that it you need to put larger sized/higher flow fuel injectors, or larger jets in to carbs into vehicles if you intend to convert them to E85 or higher?

No offense Nate, but your just 'grasping for straws' with the E-85 thing. If that were to ever become the only fuel, ALL carburated motors are in dire straights.

[natemoen]

No offense Nate, but your just 'grasping for straws' with the E-85 thing. If that were to ever become the only fuel, ALL carburated motors are in dire straights.

Evading the question eh.........

[motoman]

Evading the question eh.........

Not evading........just tottally irrelevent to the fuels we burn in our scoots.
If E85 were to prevail as only available fuel........our ole' 11's are just a muesum piece and we would not be having this conversation.

Back to you...........

[motoman]

So as not to get too off topic here, unless I missed it somewhere as to whether its been asked or not, Radioguylogs, did you remove the butterflys when cleaning the carbs? Hard for me to tell in the pics if those screws were disturbed or not.

[LoHo]

Radio, have a look at your vacuum plugs; if they are loose or old and crusty, that vac leak can mess up all of your other work. I was synching my carbs after extensive repairs and didn't notice one plug was cracked. I chased it around for a while before I figured it out. Then it took me a while to undo all of the adjustments I'd done trying to get them all even.

[motoman]

Radio, have a look at your vacuum plugs; if they are loose or old and crusty, that vac leak can mess up all of your other work. I was synching my carbs after extensive repairs and didn't notice one plug was cracked. I chased it around for a while before I figured it out. Then it took me a while to undo all of the adjustments I'd done trying to get them all even.

Good point Larry.

[Radioguylogs]

Motoman: Yes, I had the butterfly's out to replace the shaft seals. I did actuate them several times before I tightened the screws to let them set nicely. They don't stick at all and they close nicely.

LoHo: I put on new vacuum plug caps. If I hadn't, your advice would have been well founded- the old ones were....well, old.

My new genuine Mikuni jets should come tomorrow, but unfortunately I'll be out of town for a week before they arrive.

Thanks for the input guys.