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Old 05-08-2012, 02:48 PM   #4141
deejay_xr
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Guys,

Is the air screw for the dual carbs supposed to have a little o-ring?
The parts fiche doesn't show one, is this correct?

Thanks
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Old 05-08-2012, 02:54 PM   #4142
Alaskajeff
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Quote:
Originally Posted by mcma111 View Post
Correct. 1 front = 3 rear. Your idea of going from a 48 to a 40 rear seemed to be a bit excessive. And yes the XR and XRL do have similar transmissions with the exception of the main shaft which is 1 tooth different. So that does make for a difference.
I've been running a 14/45 for a while now mostly on roads dirt/pavement with no issues. i don't expect to be doing any technical slow riding or trails anytime soon so that was my intent, to get the best gearing and MPG for a 600 mile roadtrip.
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Old 05-08-2012, 02:54 PM   #4143
elsalvadorklr
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Quote:
Originally Posted by deejay_xr View Post
Guys,

Is the air screw for the dual carbs supposed to have a little o-ring?
The parts fiche doesn't show one, is this correct?

Thanks

its a fuel mixture(air) screw, but dont know if it does on the dual carbs....cant be positive

I would assume it should

one thing I know though is that sometomes the oring gets jammed in there and get crossways and you think you dont have one...

also it should be spring washer oring...

the washer protects the oring from getting squished and then the oring seals agains the carb body...

cheers

if you dont see one on the parts fiche then dont know

sorry
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Old 05-08-2012, 02:55 PM   #4144
elsalvadorklr
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Quote:
Originally Posted by Alaskajeff View Post
I've been running a 14/45 for a while now mostly on roads dirt/pavement with no issues. i don't expect to be doing any technical slow riding or trails anytime soon so that was my intent, to get the best gearing and MPG for a 600 mile roadtrip.
yeah its great for dualsporting as it gives you a little more topend than stock...thats all

technical stuff I had to slip the clucth and I DO NOT LIKE DOING THAT on such a pig....jajajaj

cheers
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Old 05-08-2012, 02:58 PM   #4145
deejay_xr
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Quote:
Originally Posted by elsalvadorklr View Post
its a fuel mixture(air) screw, but dont know if it does on the dual carbs....cant be positive

I would assume it should

one thing I know though is that sometomes the oring gets jammed in there and get crossways and you think you dont have one...

also it should be spring washer oring...

the washer protects the oring from getting squished and then the oring seals agains the carb body...

cheers

if you dont see one on the parts fiche then dont know

sorry

It's not actually, mixture screw for the dual carbs is on the airbox side.

Mine is just the screw and spring, but so many carbs have an o-ring in there that I'm kinda wondering if mine is just missing
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Old 05-08-2012, 03:01 PM   #4146
elsalvadorklr
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well there you go so many of us call the damn thing an air screw when its not on the single carbs so my bad

so your saying you have an air screw and a fuel mix screw?

you have 2 adjustments plus the idle throttle knob?

hmmmmmm

good luck

I remember on my yammie yds carbs that they only had a fuel mix screw too, but maybe Im having a senior moment here so cant give you any help really

anywhoo

cheers
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Old 05-08-2012, 03:05 PM   #4147
deejay_xr
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No the dual carbs have an air screw instead of a fuel screw, go figure
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Old 05-08-2012, 03:06 PM   #4148
mcma111
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Quote:
Originally Posted by Alaskajeff View Post
I've been running a 14/45 for a while now mostly on roads dirt/pavement with no issues. i don't expect to be doing any technical slow riding or trails anytime soon so that was my intent, to get the best gearing and MPG for a 600 mile roadtrip.

I'd go 14/42. I think 14/40 is gonna be pushing it some. Your clutch might not like the abuse.
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Old 05-08-2012, 03:19 PM   #4149
elsalvadorklr
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Originally Posted by deejay_xr View Post
No the dual carbs have an air screw instead of a fuel screw, go figure
aja!

the truth shall set you free!

got it then

jajajajajajajajjaajaj
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Old 05-08-2012, 07:55 PM   #4150
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I just picked up an 86 XR600 project bike, trying to compile a list of needs/wants. I plan to update its look with some newer plastics and seat. It seems to run well, but start hard, Im thinking of upgrading it to a single carb setup from a newer bike. Also want to swap on a newer swing arm with disc brakes and 18" wheel.

I havent had tome to weed through this whole thread, but is there a good list of compatible parts between the years? I assume bodywork, tank and seat are all interchangeable. How much of the rear susp. parts need to be transferred over to swap to a new swing arm and disc brake?

How about dumping the dual carb set up? Is the lower end of the engine same?

Thanks
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Old 05-08-2012, 09:00 PM   #4151
elsalvadorklr
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welcome!

keep reading though

not that easy to do...

a trick for searching through threads is to use google and put the words you are searching for followed by the forum name or I forget how to say the comma looking things geeeze brain fart time here

you know the quotation thingies?

uuugh

that

do that

cheers
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Old 05-08-2012, 11:46 PM   #4152
Full Lock or Death29
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Thanks for the cool comments about the pic!

Gusmang, nice one!

I ran 13/52 racing short track last year, (in 3rd gear), but then again we use real tight little 3-400m speedway tracks! We're a bit short on mile and 1/2 mile tracks over here! I'm running in second now with 14/48 and it seems about right from most 300m tracks..

During the build..







In case I lose my nerve on the grid I put the instructions on the tank..



Nearly finished, but I've got a new Excel rim for the front to match the back so I'm ditching the ugly DID comstar.. maybe get an XR750 style tank too..



I run a standard cheap crankcase filter, but I need to mount it much higher, maybe in the airbox (I've opened up the airbox with gauze at the sides and top).

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Old 05-09-2012, 04:11 AM   #4153
deejay_xr
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Quote:
Originally Posted by Full Lock or Death29 View Post
I run a standard cheap crankcase filter, but I need to mount it much higher, maybe in the airbox (I've opened up the airbox with gauze at the sides and top).

I ran a breather filter like that for a while but because it was mounted directly to the breather tube it had quite a bit of 'blow-back' or what you wanna call it. The filter would get soaked with oil after a while and droplets of oil would leak from the filter onto the outside of the engine cases every now and then.

Do you have this same problem?
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Old 05-09-2012, 04:56 AM   #4154
Full Lock or Death29
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Quote:
Originally Posted by deejay_xr View Post
I ran a breather filter like that for a while but because it was mounted directly to the breather tube it had quite a bit of 'blow-back' or what you wanna call it. The filter would get soaked with oil after a while and droplets of oil would leak from the filter onto the outside of the engine cases every now and then.
Do you have this same problem?
The first time I tried to run it after fitting the filter 3rd gear ate itself so don't know, probably will so I'd better sort out a longer tube out!
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Old 05-09-2012, 06:15 AM   #4155
elsalvadorklr
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man thats a excellent bike

details on the rear wheel and suspension setup?

obviously you shortened the suspension right? I think you said you limited rear shock travel but how?

cheers
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