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GS550ES Running Quality Questions

  • Thread starter Thread starter strawboss
  • Start date Start date
Yup, this thought has crossed my mind, but there is no way to test the igniter according to my manual either. New ones from Suzuki are $300 or $400 bucks. I watched ebay for a while, but haven't found nothing yet. Anybody have one laying around I could buy for a nice price or try out?
 
Finally Running Good!!

Finally Running Good!!

Hello All,

I haven't been on here in a while, but I thought I would post some updates. I have been tinkering with my bike since the last post. I tried a different igniter with no luck - still ran the same. Then I bought a Dynojet kit and messed with that. Couldn't get it to run good all over the place. It was either rich down low and really rich mid range or lean down low and OK mid range. I ended up getting a set of carbs from a guy off Craigslist with 15k miles on them. I put his needle jets and the stock jet needles in my original carbs and it runs good. I messed with the new needle jets and the dynojet needles too. It ran better with just the needle jet change, but couldn't get it to run good all over the RPM/load range. I did go down two sizes on the main and added a 8 in^2 area hole to the airbox (with an outerwear screen) also - the engine must be getting a little tired. I put in a new Uni filter also. Now it runs good and fuel mileage is about 43-44 mpg again.

I bought a Dr. Mom's Otoscope that was real nice too. You can look into the needle jets easily and see the marking inside of them from being worn. I didn't think this was a big deal until you realize the P-2 to P-3 diameter change is 0.005 mm with is about 0.0004 inch. Therefore if you can see the marking from the needle contact it is probably worn enough to affect the jetting. The otoscope also worked well when looking at the air bleeds and part numbers stamped into the jets as well. Works great for reading spark plugs too - way down inside the plug!! I highly recommend this tool for about $25 from Amazon. Also, I looked all over for new OEM needle jets and jet needles, but no luck. I even emailed the guys from motorcylcecarbs.com also looking for some needle jets and he said I was pretty much SOL. Had to find NOS, salvage, or good used ones. I have been watching ebay for a while, but haven't found any NOS parts yet.

Well, I hope someone finds this post useful!! I have 33k on my bike now and hope to get to 50k without too many more problems! Also, I bought some Berryman's ChemDip for cleaning carbs and it works awesome. Much faster and makes the parts cleaner than the old Yamaha carb cleaner I have been using for years!! Got to run.... Good riding!!! :D

Ryan
 
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