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TOPIC: Re:Drilling Stock Pipes on 2004 Silverado-Need Info Forum Tools Post New Topic Show latest posts Rules

#1824 VickK (User) Roadies ROCK ! Fresh Boarder Posts: 60 Drilling Stock Pipes on 2004 Silverado-Need Info 7 Years, 2 Months ago   Hello Brothers. I am going to attempt the stage three stock pipe mod that was posted to the site by Fatbike. Can anyone who has successfully done the job give me any relevant info such as carb rejetting, can I use the stock breather, do I need to remove the AIS, adjustments-stuff like that.<br><br>Post edited by: vickk12785, at: 2005/03/10 14:24   Logged     I love my Hardley Davidson!   The administrator has disabled public write access. #1834 Rats Daor Dan (User) Fresh Boarder Posts: 11 Re:Drilling Stock Pipes on 2004 Silverado-Need Inf 7 Years, 2 Months ago   I did it about a year before changing my airbox with no problems at all - no rejetting required. I did remove the AIS, though, which is recommended.   Logged       The administrator has disabled public write access. #1852 Sandbag (User) Fresh Boarder Posts: 18 Re:Drilling Stock Pipes on 2004 Silverado-Need Info 7 Years, 2 Months ago   I changed the air box to K&amp;N and completed the stage three on pipes.. I have had issues with getting the jetting correct. I now am at 200 main...I think that is large. It run great with 1/2 to wide open throttle.. Little surge at 1/4 throttle. Pipes are not black. Plugs look good. Put in maxair PMS screw, That helped some. Also changed out pilot jet to a larger one. Sorry I have forgotten what size... It was recommended on the board.. I have the same bike as you do.<br><br>Post edited by: Sandbag, at: 2005/03/13 10:54   Logged     The administrator has disabled public write access. #1853 VickK (User) Roadies ROCK ! Fresh Boarder Posts: 60 Re:Drilling Stock Pipes on 2004 Silverado-Need Info 7 Years, 2 Months ago   Someone else said they did the stage 3 stock exhaust mod and didn't need to re-jet. I'm definitely getting some mixed messages on this mod.   Logged     I love my Hardley Davidson!   The administrator has disabled public write access. #1855 MidnightCoast (User) Fresh Boarder Posts: 37 Re:Drilling Stock Pipes on 2004 Silverado-Need Info 7 Years, 2 Months ago   Sand, I'd say your main is too rich. I started with a DJ 190. I also upped the pilot to a 37.5DJ. I ended up dropping the main to a Mikuni 175 which would be equivalent to a DJ186.7 if there were such a thing. I don't know why Dynojet doesn't include a DJ185 in their 04 kit. I'm running an aftermarket breather with maxmix screw, open pipes with torque cones. I'd think you'd need to be a little leaner with the drilled stockers. I was having same symptoms you describe when I was too rich. Loy   Logged       The administrator has disabled public write access. #1860 VickK (User) Roadies ROCK ! Fresh Boarder Posts: 60 Re:Drilling Stock Pipes on 2004 Silverado-Need Info 7 Years, 2 Months ago   Hey Loy. So you think I should go with the Mikuni 175. I plan to keep all the stock parts and just drill the stock pipes out(if that provides enough tone). I dont want real loud pipes or I'll never get the old lady on the back again. As far as AIS removal goes can you recommend a kit? Let me know if there are any other mods that you think would help my cause. Thanks, Vick.<br><br>Post edited by: vickk12785, at: 2005/03/14 12:12   Logged     I love my Hardley Davidson!   The administrator has disabled public write access. #1862 MidnightCoast (User) Fresh Boarder Posts: 37 Re:Drilling Stock Pipes on 2004 Silverado-Need Info 7 Years, 2 Months ago   Vick, if you've still got the stock breather you shouldn't need to change out any jets. My comments were directed to Sandbag. If you've got stock box and stock exhaust, I'd just tweak the PMS. Loy   Logged       The administrator has disabled public write access. #1863 Sandbag (User) Fresh Boarder Posts: 18 Re:Drilling Stock Pipes on 2004 Silverado-Need Info 7 Years, 2 Months ago   I will change the main and see how that does... Thanks for the info....   Logged     The administrator has disabled public write access. #1946 Sandbag (User) Fresh Boarder Posts: 18 Re:Drilling Stock Pipes on 2004 Silverado-Need Info 7 Years, 2 Months ago   Midnight I pulled the tank tonight...The kit I have from DynoJet did not come with a 186.7 So I went with the 190...Still may be to big... I checked the clip..On the 4th slot from the top... I have not ridden yet as I just got her back together.... Cranked good but it always has... My kit does have a 185.. Might have to try that if I still have the surge... Thanks for your help with this.... ----------------------------------------------------------------------------- Rode 200 miles...Runs good but still have surge at about 1/4 throttle.<br><br>Post edited by: Sandbag, at: 2005/03/25 22:05   Logged     The administrator has disabled public write access. #2241 billdavis (User) Fresh Boarder Posts: 6 Re:Drilling Stock Pipes on 2004 Silverado-Need Inf 7 Years ago   No need to rejet or adjust PMS after doing the stage III. Stop thinking about it and just enjoy the great sound!   Logged     The administrator has disabled public write access.

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