badlegbill
XS650 Enthusiast
The motorcycle gods have smiled on me, after a thorough clean and reassembly I have 2 functioning cylinders.
Not yet properly set up but the noise is back.
Not yet properly set up but the noise is back.
well done badlegbill.The motorcycle gods have smiled on me, after a thorough clean and reassembly I have 2 functioning cylinders.
Not yet properly set up but the noise is back.
So today i confessed my shame and took a fresh look at the carbs with satisfactory results.well done badlegbill.![]()
Hi badlegbill: from your write up, it sounds like you know what you are doing. A lot of knowledge. Is that genuine "It idles solidly but is a bit slow coming back down to idle so probably a little lean." ?So today i confessed my shame and took a fresh look at the carbs with satisfactory results.
primary, secondary and air jets are clean, the same sizes and in their proper places finally.
Set the butterflies by eye and did not have to adjust when on the bike. There is a first time for every thing.
It idles solidly but is a bit slow coming back down to idle so probably a little lean.
Need to grind most of the handle off my adjustment stubby because of clashes with the petcock.
I know I could lift the tank but I could also make a tool that lets me adjust the fuel screws with the engine at normal temperature without needing to disturb anything else.
Next I took the fork top adjusters out cleaned and greased them so that I now have three positions I can set and while I was there I bounced the forks so that I knew they were straight before messing with the suspension settings which currently give me 10mm static sag and 40mm seated on the forks which I can live with and puts my cable/zip tie in the middle third under hard breaking. Not yet got the oil warm so don't know how the numbers and feel will change
The same springs were bottoming regularly, I have previously given notice that I am a larger than usual gentleman at 270 lbs, now I have proper numbers for the front end with the original springs and slightly more than the recommended amount of oil to increase compression damping; have to see how the seals hold up under the higher pressures.
Looking forward to finding out how it sits and rides now.
It just occurred to me to put a ball of clay on the top of the back tyre to check clearance under load before hooning.
Hi badlegbill: from your write up, it sounds like you know what you are doing. A lot of knowledge. Is that genuine "It idles solidly but is a bit slow coming back down to idle so probably a little lean." ?
At 270lb, you are too heavy for the heavyweight division of the UFC, need to lose 5lb to qualify. Enjoy your ride.![]()
. . . The old oil was remarkably dark considering it had only been in for a couple of weeks and had done maybe 50 miles plus a few engine runs in the garage to sort the timing! . . .
Thanks for the information, badlegbill.That is why some of my posts are about suspension.
The rest is based on making 70 years worth of mistakes.
Oh yes, basic idle tuning to within "pretty good", if you have similar compression based on how much effort it takes to push through the resistance of the kickstart, balance the air draw with a gauge or just setting the butterflies to show the light through them or allow a piece of paper to move, set both mixture screws the same, ask or check the manual.
If you are lucky you can warm it up so it idles, throttle to 2 or 3 k from idle for 2 or 3 seconds then return throttle to idle.
If it hangs on to revs before returning to idle - too lean ( or you need to check throttle return )
If revs drop below idle speed before recovering - too rich ( or check the diaphragms)
If this doesn't work you probably have an air leak or dirty jet or something.
By the way if you haven't done this already make one of these so you can set mixtures easily, it works on recessed jets too, by the way the drill is to tidy it up, you make it with a grinder initially.
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I find the something the interesting bit.