XS850 - Monoshock & USD Fork (pics pg 13)

xb33bsa said:
oh and lots of bikes you can do a clutch without even an oil drain,by leaning it over.less mess less work.if the oil stinks like burnt coffee tho,from the clutch :( you proly should put it in yer lawen-mower next oilchange ;)
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This is a great tip. saving this one
 
datadavid said:
That small variations in comp can be disregarded i think. How about you put some fuel system cleaner in the tank and just ride the shit out of it? :)
Redline has a good product, i use it for all my machines.
Cleaned out the carbs on my 750 to a near optimum performance.
And its a lot more fun cleaning carbs while you ride!
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Haha this does sound like a lot more fun!

xb33bsa said:
yer good there ;) had you tried swapping coils to eliminate that a coil or plug lead is the problem ?
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I have NOT tried that... worth a shot I guess!

I also have yet to try the golf tee choke plunger technique to make sure the choke system is shutting off completely. So that's worth another look too.
 
Man this thing is rippen now! No clutch slipping anymore (just the adjuster), and it pulls hard at all throttle levels. Still a little pop on #1 at idle as you can hear in the attached video. I might try swapping coils tonight. Otherwise, it has to be in the idle circuit or choke system.

https://vimeo.com/135416401


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And my plugs for your viewing pleasure. Important to note that before my test ride this evening, #1 was brand new. I switched the coil from 1 to 3 just for the hell of it. IF it's coil related, 3 should be black after my next ride. However my gut is telling me this is still a carb issue.

Interesting note... This was the first test ride where I really opened it up because I wasn't dealing with the clutch slip or any other issues, and the black plug was a little more smooth and less sooty. I can only imagine this is because I burnt off/shot out a lot of the extra carbon build up.

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They are just down the line. #1 too Rich, #2 just a bit rich still, and #3 looking relatively good.

From the video it did sound like a secondary ignition in the pipe. They make a slightly different "pop" noise than a lean pop. Try leaning out the mixture screw on that one as a temporary band-aid. Maybe put it at 1 turn out and see how she goes.

Other than that, get some miles on her (bring an extra plug or two! haha) and get in the shakedown runs! :)
 
Thanks man! Rode it to work today for the first time. Tightened that air screw on the #1 carb a bit, but probably not enough. Excited to get it out on the road a bit.
 
So the brake saga continues... if not one thing, it's another.

Riding back to work after lunch and my front brake seized up. Fortunately it did it gradually at a slow speed, so I didn't eat it or anything. Once it cooled down it started to at least roll so I moved it to a safe spot until later. The lever got super hard as well. No free play at all.

I know it's been a while since we talked about the brakes... but I'm wondering if a caliper rebuild is in my future after all?
 
Google search results from a GSXR forum. This post ended up being the answer/solution to 3 or 4 different guys... At least I know where to look first!

Alrighty folks. I think I've figured this one out. On mine at least. I had an aftermarket brake lever on, which is when the problem started. I thought it might be a bad master cylinder but since it was fine before, I guessed it had to be something I did. Well, I had the old lever (OEM) on and it did the same thing. The curious thing was, when I set the adjuster so the lever was closest to the handlebar it would pull back all the way, but "bottom out" halfway to the handlebar. Normally the lever would practically touch the handlebar. I found out the hole on the lever where the m/c piston rod goes in has a small "roller" in the bottom. If you rotate that roller, you'll see another drilled out hole in it. The m/c piston rod end has to fit all the way into this hole to allow the m/c piston to FULLY extend and allow the brakefluid to return from the calipers. I haven't test ridden it yet, because of a thunderstorm, but I'll post the results by the end of today. Fingers crossed!!
 
It was that lever thing. It wasn't lined up. Which may have also contributed to the nightmare I had bleeding the brakes? Ugh. Regardless, it's lined up now.

Back to the carbs... I found my issue! Remember that plugged air jet? Well, I pulled it out and shot carb fluid into the opening and it just shot back in my face. Tried the same thing on carb 2 and it flowed through the carb and out the tiny hole on the back side (engine side) of the carb. Pulled the air screw out of carb 1 and sprayed fluid in and it flowed through the tiny hole (as it should). Conclusion, there is a plug on the pilot air circuit someone between the air screw and the air jet. If this is true, then I would be getting 100% gas at idle with little to no air at all to lean it out.

Plan is to shoot some compressed air through from the air screw opening and see if I can blast the plug out.

Any other thoughts??


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treitz said:
Plan is to shoot some compressed air through from the air screw opening and see if I can blast the plug out.

Any other thoughts??


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Just don't jam anything in the bore... Goof Off works good to eat through stubborn varnish just drip it in with a small chunk of drain tube, if it's really tough use a chunk of mono fill 20# or so to poke at it.
 
Tune-A-Fish said:
Just don't jam anything in the bore... Goof Off works good to eat through stubborn varnish just drip it in with a small chunk of drain tube, if it's really tough use a chunk of mono fill 20# or so to poke at it.
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For sure. Definitely understand the importance of that bore not being effed up.

Thanks for the tip. If the compressed air doesn't do the trick, I'll give that Goof Off a shot.
 
Try some "really hot water" I'd say boiling but it won't be boiling by the time you get it to the bike. I suppose that's easier with the carbs off. I used to soak carbs in lemon juice and hot/boiling water back a few years before I got lazy....I got a large industrial ultrasonic cleaner for carbs :)

The carb cleaner, at a few minute intervals could unclog it. Just needs a little time to soften up so you can blow it outta there.
 
The carbs are off... so I guess I could just throw them in the sink with super hot water running into that pilot screw opening. Our sink puts out near boiling point hot water.
 
treitz said:
The carbs are off... so I guess I could just throw them in the sink with super hot water running into that pilot screw opening. Our sink puts out near boiling point hot water.
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Yep, I found that softens it up, then you hit it with a blast from the compressed air and SPLAT you get the nasty stuff out.

Unless it's from a mudwasp. Then nothing gets that out but swearing and screwdrivers. Damn things. :mad:
 
treitz said:
Yikes! I don't think we have those over here... at least I've never seen one.
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We get the BLACK ones here. Actually neat little creatures, really don't bother you at all, and would rather NOT be any where near you. But the mud nest things they make are incredible and resistant to chemicals....

https://en.wikipedia.org/wiki/Mud_dauber
 
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