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You sorta implied the bike was new-to-you. There always the possibility that PO rejetted for pods and pipe, but unfortunately there is only one way to be sure- pull them off and investigate. Your to do list is getting longer, so get moving. As was mentioned, poor running bikes are not just frustrating, but dangerous.1981 gs650L
"We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin
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gs1000emt
Thanks guys. I did have the carbs off at one point and saw the main jets said 127.5. I know it needs an oring kit and the valves adjusted next before anything. Im a little intimidated by the valves but there are great instructions on here i will follow. I spoke with steve on the phone last year and he is definitely very knowledgable. He was very generous and offered me help. Look forward to getting this beast on the road this spring.
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gs1000emt
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Forum LongTimerGSResource Superstar
Past Site Supporter
Super Site Supporter- Mar 2006
- 35598
- Torrance, CA
Originally posted by gs1000emt View PostIs 127.5 Mains aftermarket?
Yes, aftermarket. Carb jetting info is in your service manual.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection
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gs1000emt
Hmmmm....I dont want to buy a Dynojet Kit unless I have to. When I get in there to replace the orings I will check the #'s on everything. What else should I look at besides the main jets?
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Originally posted by gs1000emt View PostHmmmm....I dont want to buy a Dynojet Kit unless I have to. ....
"I have only ridden it around the block a few times. It sat for 10 years so Ive been getting her back into good health. "
Maybe PO wished he went for Dynojet kit- just changing jets is easy, but there is other stuff to consider.1981 gs650L
"We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin
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TheCafeKid
Originally posted by gs1000emt View PostHmmmm....I dont want to buy a Dynojet Kit unless I have to. When I get in there to replace the orings I will check the #'s on everything. What else should I look at besides the main jets?
The problem with this set up on those carbs isn't so much the jet sizes as it is the needle shape. The stock needles are nearly impossible make work well with pods. It's just too much air and the needles are too fat and limit the fuel flow too much.
Honestly, I'm not trying to make you spend money. But I learned a long lesson by trying to avoid this very thing, and that is just that it's nearly impossible to jet those carbs by hand using the stock needles.
You may get it close, but you'll be leaving quite a bit of power on the garage floor, and you'll still have flag spots in the rev range. Install a jet kit, and you'll seriously be amazed at how much power that bike really has compared to what it's felt like to you this whole time.
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gs1000emt
Your right cafekid. Dynojet kit on the list of things to order before ride time starts in spring.
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