View Full Version : Spacing on Breather Holes-NHRS HurricaneFlow Breather
6th February 2005, 00:55
I bought the NHRS HurricaneFlow Breather and they shipped me Drag Speciaties # 289126 as a head breather-carb bracket setup to use with the HurricaneFlow. The Drag Speciaties catalog says this kit is supposed to fit up to 05 XLs. The problem I have is that the spacing on the breather holes in my heads is narrower than the bracket with this kit. The bracket measures about 6" center hole to center hole and my breather holes are about 5 1/4" center to center. This appears simply be the wrong bracket, but I noted that some of you purported to use this DS kit successfully. Nightboy specifically mentioned by number that he used this kit, but he was banned. We have just reassembled the motor, but I don't think its possible to change the spacing of the breather holes by installing something wrong. Can anyone tell me what the spacing on your your 04-05 heads is? I noted that some of the guys on this forum have bought heads from NHRS heads and I thought maybe the spacing is different on their casing which could explain why the kit worked for them. Any help would be appreciated.
6th February 2005, 01:48
sounds like someone has got a big twin breather mixed up, maybe ended up in the wrong box at some stage aong it's life...
the big twins are about 1/2" - 3/4" wider than the sporties.... I'm not sure on the '04's but I'd guess they are similar and that's where the mistake is..
Give Aaron or Justin a ring or email them .... just sounds like a mix up.... problem with outside supplies
6th February 2005, 02:31
That spacing is the same on all 86-05 Sporsters. The only change has been the bolt size in '91, when they went to breathers in the heads instead of the cam box. Yes, it's about 5-1/4".
Stevo's right, it appears yours came with a Big Twin bracket for whatever reason.
We don't open those kits and check the parts before we ship them out, but it sounds like we need to at lease spot check the bracket.
Sorry about this. I've got a black bracket I could fire off to you gratis, but we don't have another chrome one in the shop right now, that kit got backordered. I could send you the black one and you could just use it until I can get you a chrome one.
6th February 2005, 04:44
Thank you. Black would be fine. I was going to call Justin on Monday. I had just hoped to get it running this weekend. We finally got some decent weather in Virginia. At least I got my cams in, pistons in, heads on and rocker boxes bolted on.
Rapidan, VA 22733
By the way, I just snapped a one of the 3 1/6" bolts inside the rocker box. The service manual said to torque it to 145 to 155 inch pds. I thought that sounded to high for that size bolt, but didn't substitute my judgment, at least until the second time when I had to reinstall it after taking out the broken one. Do you happen to know what the proper torque is for those smaller bolts?
6th February 2005, 05:25
You broke off one of the 3 1/4" bolts (7/16" heads) that sits on the floor of the rocker box? One of those little grade 8 jobs?
Congrats, you're in the club!
The torque spec is way high for those and lots of people break'em off following the directions.
No, I don't know the maximum safe number. I do'em to 140 or so, using a 1/4" drive torque wrench.
6th February 2005, 13:44
You're right, they are 1/4", not 3/16ths. Well that's one club I would rather not be a member of, but I am happy that its a reasonable mistake. I am off today looking for an open hardware store that carries grade 8s.
6th February 2005, 16:17
Shooter ... I blew it, was just informed we shipped the last in-stock carb support bracket on Friday! Sorry about that. We have more on order but it'll be probably a week. Doggone it anyway.
This kind of stuff drives me nuts. We just recently got a set of SE "E" cams back from a customer. There were 2 #1 cams in the box and no #3 cam. We had sent him a brand new sealed box from Harley Davidson. Grrrrrrrrrr. Someone out there probably got a box with 2 #3 cams and no #1 cam.
I'm sorry, man. We'll fire off the next carb support bracket we can get our hands on.
6th February 2005, 16:36
I have an 041200r with SE cams, ignition and newly added T header. Do I need to increase intake flow with one of your kits or is the SE AC adequate. Looks like some discouraging remarks in an earlier post about the 04 AC.
Sign me up for that broken bolt club, kept waiting for the torque wrench to click, of course it never did, and the bolt broke. Had to remove the rocker cover to get the remnant out, dealer didn't have any, but NAPA did.
Sounds like you are about ready to fire that scooter up Shooter. I got my thunderheader installed and rode about 150 mile yesterday. Two words AW SOME.
6th February 2005, 17:06
I'm going to second that the 04 SE A/C aren't as good as previous years. I'm moving into something else very soon to get a little better flow out of it.
6th February 2005, 20:05
Shooter - I PM'd you about your bracket. I have an extra (chrome) and you are more than welcome to have it (no charge). Email me or PM (Joshuasws6@comcast.net). I can next day it if its not too terribly expensive.
7th February 2005, 15:40
Thanks Joshua. I sent you an email.
Billib-I fired it up yesterday with no pipes on it. I used the stock bracket to hold the carb without a filter. My plan was to just get gas to the carb and it fired up immediately and ran smoothly until I cut it off after about 10 seconds. I think its going to do well.
7th February 2005, 18:01
cool, will have to look you up sometime soon since were in the same neighborhood. iv'e got a spare set of SEs ifn you want to use them for awhile. Will post pic of mine with thunderheader as soon as i figure out how.
8th February 2005, 01:12
Shooter - sent you an email as well. Just sent the carb bracket overnight. Its guaranteed to arrive by 5:00 PM tomorrow (Tuesday). Let me know if it works.
8th February 2005, 01:22
Man, you are a great guy. Thanks for the help.
See my post under the motor section for some problems I encountered.
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