Buster91dg Posted May 27, 2016 Report Share Posted May 27, 2016 So today my mikuni carb sync tool came in. I threw it on my carbs and noticed that my throttle side carb was reading around 5 or so at idle. My clutch lever side carb was at 1 or 2. It was a big difference. So I figured let's check compression both side are at like 119&1/2 psi. Pulls hard but I was noticing a slight hick up around mid throttle don't know what could be up any advice. And I always noticed my throttle side exhaust always smoked more. 290 main jets Stock pilots Needle is last clip down Quote Link to comment Share on other sites More sharing options...
camp0429 Posted May 27, 2016 Report Share Posted May 27, 2016 Just set your idle until both carbs pull the same, also make sure slides are in sync Quote Link to comment Share on other sites More sharing options...
Buster91dg Posted May 27, 2016 Author Report Share Posted May 27, 2016 Just set your idle until both carbs pull the same, also make sure slides are in syncI did set the idle and the carb slides seem to be in sync. For just eyeing it. it just the readings don't seem right with one side being so off u kno and I bought that tool so I could try to get everything 100% do you think I may have an air leak maybe that's the only other thing that I can think of. Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted May 27, 2016 Report Share Posted May 27, 2016 Use the sync tool to actually sync the carbs..... Quote Link to comment Share on other sites More sharing options...
Buster91dg Posted May 27, 2016 Author Report Share Posted May 27, 2016 I tried the throttle carb it just moving more air into the engine Quote Link to comment Share on other sites More sharing options...
camp0429 Posted May 27, 2016 Report Share Posted May 27, 2016 I tried the throttle carb it just moving more air into the engine It's "moving more air" because the idle is set higher on that carb. You have to set your idle to make both carbs pull the same. Put the sync tool on one carb, you say the one is pulling around 5, now if the other is pulling any less vacum, run your idle up on that carb until they are dead even. Usually around 5 is pretty good but both have to pull the exact same. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted May 27, 2016 Report Share Posted May 27, 2016 You have to sync two different settings. First is the idle speed adjustment screws. You want to do this with slack in the throttle cable. The second adjustment is the carb tops. This is done with tension on the carb cable. That way both slides lift at the same time and the same amount. I usually take the thumb throttle cover off and use a 1/4" extension or small socket to wedge in between the housing and the arm that pulls the cable. This way the throttle is held slightly open and at a constant rpm. Then go back and fourth between carbs making adjustments to get them to the same reading. Quote Link to comment Share on other sites More sharing options...
Buster91dg Posted May 27, 2016 Author Report Share Posted May 27, 2016 Yes I had the idle screw maxed out still nothing? Quote Link to comment Share on other sites More sharing options...
hoppedupandcutdown Posted May 27, 2016 Report Share Posted May 27, 2016 Adjusting idle with TORS or Tors delete kit idle screws? Quote Link to comment Share on other sites More sharing options...
Buster91dg Posted May 27, 2016 Author Report Share Posted May 27, 2016 Idle screw kit Quote Link to comment Share on other sites More sharing options...
hoppedupandcutdown Posted May 27, 2016 Report Share Posted May 27, 2016 you can file more off of the carb body to get more adjustment Quote Link to comment Share on other sites More sharing options...
Buster91dg Posted May 27, 2016 Author Report Share Posted May 27, 2016 Really how far can I go bec I already made it flush Quote Link to comment Share on other sites More sharing options...
hoppedupandcutdown Posted May 27, 2016 Report Share Posted May 27, 2016 better post up some pics, flush is already to far IMO Quote Link to comment Share on other sites More sharing options...
Buster91dg Posted May 27, 2016 Author Report Share Posted May 27, 2016 Alls I did was file the angle down flat like one of the guys in this forum recommended here's a pic Quote Link to comment Share on other sites More sharing options...
hoppedupandcutdown Posted May 27, 2016 Report Share Posted May 27, 2016 I couldn't find a good definition of "flush" used as an adjective on-line, but that ain't it... Feel free to file more off. 1 Quote Link to comment Share on other sites More sharing options...
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