Let me preface this by telling you all i have a 78 500 but this site has the best wealth of info on the internet. My issue it this. The motor seems to bog down and struggle through the 5000-7000 rpm range. before and after that it pulls hard. What is my issue? Think running some gumout type fuel injector and carb cleaner through it will help? what about some seafoam?
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Lots of people like the Seafoam. What ever you use follow the directions on how much to use per gallon. One can to a 20 gallon tank is ok one can in a 3.8 gallon tank is to strong.
If you get it too strong it can hurt the rubber parts in your carb.
If you get it too strong it can hurt the rubber parts in your carb.
Tech7
XS650 Junkie
Have you pulled the carbs and cleaned them out?
Tech7
XS650 Junkie
I'd still take a look. Possibly a sticky slide or tear in the diaghram. See what the plugs look like. Dark or light color. I'm not a fan of pour in cleaners. Usually do more harm than good.
bloodthirstysystem
XS650 Addict
remove carbs and clean them.
seafoam, gumout, etc might help, but it might not. in the time it takes to drive to the store for a bottle you could have just done it the right way!
seafoam, gumout, etc might help, but it might not. in the time it takes to drive to the store for a bottle you could have just done it the right way!
bloodthirstysystem
XS650 Addict
read this - http://www.xs650.com/forum/showthread.php?t=43
carbs pretty much all operate the same way. you're lucky you only have one carb to deal with. should be easy
carbs pretty much all operate the same way. you're lucky you only have one carb to deal with. should be easy
kent_in_kc
Heartlander
What pipes are you running? If they are wide open you may not have enough back pressure. Check out Rocky Mountain Performance's Quiet Riot baffles. They add back pressure for good low-mid response then open up for good high end performance.
pyrocentric
XS650 Addict
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The trick to rebuilding carbs is patience and PERFECTLY sized screwdriver tips. If the screws are really stuck an impact screwdriver(you hit it with hammer) works great, be careful. Midrange would primarily be the needles on the slides, raise them a groove to make them go rich earlier or lower them to lean it out.
I guess you could also make sure your advance mechanism is working as it should. On the 650's it kicks in at 3000rpm.
I guess you could also make sure your advance mechanism is working as it should. On the 650's it kicks in at 3000rpm.
pyrocentric
XS650 Addict
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I don't know on a 500cc, but you can hook up a timing light and watch the timing mark.
