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Old 08-02-2014, 06:40 PM   #2101
jjxtrider
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That would be my thoughts as well, the timing curve has been altered and it needs to be set at a different advance than oem.


.
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Old 08-03-2014, 04:23 PM   #2102
mark1305
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The interesting point is that the sticker says to check timing at 4200 rpm (full advance). That lends credence to a performance mod in my mind.
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Old 08-04-2014, 08:13 AM   #2103
Sidecar Jockey
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I just bought a 1982 XL500 from a friend. It has been sitting for 3 years, but was regularly ridden before that.

It had good compression and spark when I picked it up. I drained the gas and oil and added new fluids. I cleaned out the carb and lubed/adjusted all of the cables.

It started on the second kick! It runs great, and I took it for a ride through the neighborhood and it rides and shifts great too!

The bad part:

Sometimes the idle hangs and stays high even after closing the throttle. If I 'snap' the throttle it will settle down to a normal idle. Doing a gentle roll-on makes the idle stick more often than really giving it a fist full.

I took the carb off again and re-checked and cleaned everything. Its spotless. The slide and choke move smoothly.

I tested for an intake leak, and there isn't one. There isn't an exhaust leak either.

The idle only hangs high somtimes, maybe 50% of the time that I stop. It will almost always settle back down to normal if I snap the throttle open then closed. It has the stock carb and the accelerator pump works fine. The bike is 100% stock (except for tires) and the carb is adjusted per the manual. The bike has 5,200 total miles on it. I live at about 1,800 feet elevation.

Any suggestions or unput would be greatly appreciated!! I cant figure this one out...
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Old 08-04-2014, 02:05 PM   #2104
cerrixr
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Mi XL 500

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Old 08-04-2014, 08:23 PM   #2105
jjxtrider
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Quote:
Originally Posted by Sidecar Jockey View Post
I just bought a 1982 XL500 from a friend. It has been sitting for 3 years, but was regularly ridden before that.

It had good compression and spark when I picked it up. I drained the gas and oil and added new fluids. I cleaned out the carb and lubed/adjusted all of the cables.

It started on the second kick! It runs great, and I took it for a ride through the neighborhood and it rides and shifts great too!

The bad part:

Sometimes the idle hangs and stays high even after closing the throttle. If I 'snap' the throttle it will settle down to a normal idle. Doing a gentle roll-on makes the idle stick more often than really giving it a fist full.

I took the carb off again and re-checked and cleaned everything. Its spotless. The slide and choke move smoothly.

I tested for an intake leak, and there isn't one. There isn't an exhaust leak either.

The idle only hangs high somtimes, maybe 50% of the time that I stop. It will almost always settle back down to normal if I snap the throttle open then closed. It has the stock carb and the accelerator pump works fine. The bike is 100% stock (except for tires) and the carb is adjusted per the manual. The bike has 5,200 total miles on it. I live at about 1,800 feet elevation.

Any suggestions or unput would be greatly appreciated!! I cant figure this one out...
Sticky cable(s) (if a push/pull) or linkage not returning all the way back down to the idle screw. I lube my cables with actual cable lube(Motion Pro usually) not wd-40, it dries out and gets sticky. Otherwise the slide getting stuck inside. Lube all linkage pivot joints.

An air leak would always cause high idling, quick throttle snap would have no effect then because it is an entirely different issue.

.
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Old 08-05-2014, 04:02 AM   #2106
Sidecar Jockey
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Quote:
Originally Posted by jjxtrider View Post
Sticky cable(s) (if a push/pull) or linkage not returning all the way back down to the idle screw. I lube my cables with actual cable lube(Motion Pro usually) not wd-40, it dries out and gets sticky. Otherwise the slide getting stuck inside. Lube all linkage pivot joints.

An air leak would always cause high idling, quick throttle snap would have no effect then because it is an entirely different issue.

.

The cables are nice and smooth, and the throttle returns shut every time. I verified many times that the throttle wheel is resting against the stop.

It could be a sticky slide. I'll have to pull it apart again and clean/inspct the slide and top end of the carb. I only cleaned out the bowl area of the carb before. Thanks!
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Old 08-05-2014, 06:46 AM   #2107
brucifer
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Quote:
Originally Posted by Sidecar Jockey View Post
The cables are nice and smooth, and the throttle returns shut every time. I verified many times that the throttle wheel is resting against the stop.

It could be a sticky slide. I'll have to pull it apart again and clean/inspct the slide and top end of the carb. I only cleaned out the bowl area of the carb before. Thanks!
Something you might check is the slide linkage inside the carb. I had a big problem with a hanging idle on an XR650R and that's what it turned out to be. The throttle wheel was returning to the stop but the slide wasn't. There was enough slop in the linkage that the slide wouldn't return all the way down--blipping the throttle would get it to settle down most times. Big singles have enough vacuum to hold the slide against the bore--hence the hanging idle when play in the linkage is present. And it doesn't take much slop for this to happen.
I'm beginning to have this problem on my '95 XR600 and have purchased the linkage kit--just need to install it now.
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Old 08-05-2014, 07:06 AM   #2108
Schrauberklaus
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over heating problems on a air cooled single ??

Here is the solution




seen today in Saraburi/Thailand
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Old 08-05-2014, 09:22 AM   #2109
mike.l
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Should I buy this XL250?

I'm looking to buy this XL250 venture classics.com for about $2000. I'll have to travel from Ireland to Britain to see and purchase it, so it's a bit of a gamble and I'm no expert. I've ridden bikes for years, and had a go on a friend's XL250 and loved it. I'm getting on a bit and wonder what It's like to kick start. It'd be for me and my son to use on forest trails around us. + are there any major things to be aware of when looking to buy one of these?

I'd be grateful for any advice. Mike
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Old 08-05-2014, 10:16 AM   #2110
jjxtrider
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Quote:
Originally Posted by brucifer View Post
Something you might check is the slide linkage inside the carb. I had a big problem with a hanging idle on an XR650R and that's what it turned out to be. The throttle wheel was returning to the stop but the slide wasn't. There was enough slop in the linkage that the slide wouldn't return all the way down--blipping the throttle would get it to settle down most times. Big singles have enough vacuum to hold the slide against the bore--hence the hanging idle when play in the linkage is present. And it doesn't take much slop for this to happen.
I'm beginning to have this problem on my '95 XR600 and have purchased the linkage kit--just need to install it now.

Yup, I have an XT doing the same thing, it's annoying !!


.
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Old 08-05-2014, 11:30 AM   #2111
brucifer
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Quote:
Originally Posted by jjxtrider View Post
Yup, I have an XT doing the same thing, it's annoying !!


.
Yes it is!
What's even worse is riding a wheelie and your at the pivot point and chop the throttle but it doesn't go down as far as you were expecting it to!
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Old 08-05-2014, 02:15 PM   #2112
jjxtrider
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Old 08-08-2014, 09:52 AM   #2113
kstklt
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83 XL185s

Greeting good folks! So stoked to find this thread! Shades light to my XL185s restoration project!

I got my 83 XL185s 2 years ago, this is how it looks like when i first got it. Malaysia (where i live) has bad weather for motorcycles, it's in very bad shape, but it is in running condition when i got it.



after a good wash, the 'black' front mud guard turns out to be white


The engine had been dismantled, cleaned and polished the exterior, but not too sure what else should be replaced for a complete rebuild? Need your advice guys. =)

And also, does anybody happend to have the wiring diagram for this particular model? My wire loom is really messy, I can figure out most but not sure where the wires from the CDI unit should be connect to ...

any help would be very appreciated, thank you so much guys! Help me get my bike running please. =)
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Old 08-11-2014, 07:14 PM   #2114
baltimoron
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1976 xl 350 updates

Hello Everyone,

It's been a while since my last posts with lots of hangups dealing with the old carb on this bike. I ended up going ahead and purchasing a new Mikuni carb and throttle kit from Dave at Xlint. It's all hooked up now, but as HerrDeacon mentioned, I should make sure that there isn't gas in the oil from the old leaky carb. So, I've got the oil draining now and am going to fill it tomorrow before I try to start her up.

I did somewhat of a chop job on the stock air box by removing it's holding bolts so that I could turn it inside the frame, and then using a dremel tool to cut the hole wide enough so that the new air filter fits through. Now I better not ride in the rain! I may fashion some sort of extension for this thing for down the road.

I also found a SuperTrapp exhaust on ebay for $129.00 and hooked that up... let's see what happens!
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Old 08-12-2014, 12:42 PM   #2115
Tugboat56
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CB/CL100 Rotor puller

About to do a top end job on my CB/CL100, and am planning on changing the cam chain. To do that, I have to remove the rotor/flywheel. Can I just use one of the rotor pullers you can rent at an auto parts place, or does it take a special puller of some sort?
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