Author Topic: What to do after rejetting/new exhaust/drop-in air filter/new carb?  (Read 337 times)

Offline BikerBoy

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So to fix my ever-leaking, overflowing airbox I bit the bullet and bought an ebay carb, as was recommended in a thread made here years ago (cheaper than paying 100/hr to fix a mystery leak when a working carb is the same price!). 142.5/62/5/20 jets are in the carb. I havent installed the exhaust yet, but it looks like my leaking airbox problem is so far, so good. The bike started without the new delkevic exhaust on pretty well, but dies when I put the choke on all the way (probably too rich, I think the new exhaust will lean it out enough to be good) I also got extended air/fuel mixture screws so I can adjust that without taking the carbs off or playing with a 90 degree screwdriver.

So after I get the exhaust on, is the first order of business to adjust the idle mixture screw when its warmed up? Then mess with the extended air fuel mixture screws to perfect it? Any thing Im missing? Thanks  O0 :thumb: :2guns:

Online mr72

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Re: What to do after rejetting/new exhaust/drop-in air filter/new carb?
« Reply #1 on: August 14, 2019, 05:33:57 AM »
Other way around. Set idle mixture first then adjust idle speed to avoid hanging idle.

If it dies in choke the exhaust is not going to change much. Exhaust will make very little difference in mixture.

Offline BikerBoy

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Re: What to do after rejetting/new exhaust/drop-in air filter/new carb?
« Reply #2 on: August 14, 2019, 12:57:12 PM »
Other way around. Set idle mixture first then adjust idle speed to avoid hanging idle.

If it dies in choke the exhaust is not going to change much. Exhaust will make very little difference in mixture.
Awesome, thanks. Ill use your write-up on the air fuel mixture screw from your blog now that I can do so easily, once the exhaust is on of course. (https://joshkarnes.blogspot.com/2017/09/fixing-common-gs500-carburetor-issues.html)

 

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