Leadweight Posted April 8, 2009 Share Posted April 8, 2009 I have read write-ups for 2 ways of cleaning up the mid-range of this carb/engine combination. 1) Cut or file the throttle valve (Scott Traver's mod). or 2) Plug a mid-range port(hole) Just wondering which of the 2 options is the better route to go... and why one way may be better than the other. Thanks again! Quote Link to comment Share on other sites More sharing options...
weesplat Posted April 8, 2009 Share Posted April 8, 2009 I havent tried any of those . I have a very smooth mid range on my adventure a3 with the 210 engine which i put down to it having a walbro 37 instead of the 32 fitted. Might be something to try before chopping /stuffing bits off/in the standard carb. Cheers Col..... Quote Link to comment Share on other sites More sharing options...
Phil_P Posted April 8, 2009 Share Posted April 8, 2009 I used the cut-away in the butterfly mod on my WB32. Certainly seemed to be ok in the midrange, with no discernible peakiness. I have now replaced the WB32 with a WB37 and have done the same mod on that, and all seems well currently. Carb butterflies are very cheap, so you can afford to try it then go back to standard if you find it doesn't work for you. Quote Link to comment Share on other sites More sharing options...
Leadweight Posted April 8, 2009 Author Share Posted April 8, 2009 Thanks again, both for your response to this topic as well as your posts to other topics while helping others. I will give it a go with the cut-away of the WB32. I also have a line-up on a WB37 if needed. Here is the write-up I was reading. http://www.geocities.com/farellus/idle_adaptation.html Quote Link to comment Share on other sites More sharing options...
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