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HSR 45 and MPG 1 Year, 10 Months ago
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Hi all , lots of questions on MPG expectations on the forum so posting mine . 04 1700 w/ roadhouse duals ( plus thunder monster Baffles ) , Kury High Five air intake ,Irridium plugs and.... my new this year HSR 45 , bought the 45 because it was a good deal from a member here . After experimenting with Jets needles etc Im getting solid 46 MPG (US Gallons) Loaded with two up ..me 210lbs Better half 145 lbs , full Bags and a Large Tail pack . all full . Great trip thru Algonquin Park and the Muskokas last weekend and Lake Placid area the two weeks before . Best Mileage per tank was on Shell mid grade 89 octane . Yes I usually run 87 regular but its interesting ....I get a measurable improvement using the 89 . For what its worth .HSR 45 settings , 27.5 pilot ( idle air out 1.5 turns ) 60 pump nozzle , Mikuni 175 main jet , 97 needle with clip in third from bottom ( middle position ) . I know allot of HSR 42 users will think these settings rich , but the extra throat size of the 45 seems to need them . Runs Great right thru the range , yet still need a little choke to start on first revoulution even on hot days if Sits for 5 minutes or more . NO AIR LEAKS !! I do love that Carb ! |
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Re:HSR 45 and MPG 1 Year, 10 Months ago
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Glad to hear it worked out well for ya, Mine is setup a bit different, but the end result is about the same....  Maybe they just work well for sailors....  |
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Re:HSR 45 and MPG 1 Year, 10 Months ago
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Yeah , very happy I bought that thing , I think you told me before but what are your settings Flasback ?
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Re:HSR 45 and MPG 1 Year, 10 Months ago
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Needle Manufacturer: mikuni #98
Needle Clip: 2
Jet Manufacturer: mikuni
Main Jet Size: 165
Pilot Jet Size: 22.5
PMS Screw Manufacturer: mikuni
PMS Turns Out: 2+- a tad depending on temp
My Elevation (ft): 745-*
My jets are leaner, but I run the needle higher.. |
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Re:HSR 45 and MPG 1 Year, 10 Months ago
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Flashback wrote:
Needle Manufacturer: mikuni #98
Needle Clip: 2
My jets are leaner, but I run the needle higher..
You're confusing me. 
If you're on 2, the needle sits lower (leaner).
Why do you say that?
Doc
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Re:HSR 45 and MPG 1 Year, 10 Months ago
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I'm on the second groove from the pointed end, not sure how many are above me, my main is a 165. Curt is correct, it is the leanest needle and I suspect I run on the main a little more at cruise speeds than most, as my pilot is a bit lean also, remember that the slide/needle is directly connected to your hand..when I really twist the throttle, I am a bit rich, but with the larger throat, the air/fuel mix is not off much. I only think this because if I do a lot of twisting my MPG will drop down quite a bit, I can cruise at 65mph and squeeze 47 to 50 mpg, but if I am zipping between stoplights or running a bunch of twisties, the MPG will drop into the mid to high 30s..With a HSR, I think you need to re-think the jetting combinations a bit because of the direct connection to the slide...... IMHO |
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Re:HSR 45 and MPG 1 Year, 10 Months ago
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That is what confused Doc is you were counting from the needle end and not the blunt end. I got all my goodies today. Jets all the way from 185 to 160 in 5 increments, all the needles, and pilots on each side of standard. Got my needle on 3 and the standard pilot with a 160 main. I can't really test it yet got a lot to do to get the bike back road worthy so it will be a while. I do have it dry mounted and will right up a test gas tank to fire it up but can ride it for a while.  |
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Re:HSR 45 and MPG 1 Year, 10 Months ago
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I appologize, I have been here long enough to know better...... I haven't been in my carb in over 2 years, it is very tunable but probably not as ECO frendly as the CV........more sensitive to temps, and also altitude, so you may need to fiddle with the pms a bit more. I adjust my pms about a 1/4 turn in or out depending on the season..With your love of tuning, I think you will be in hawg heaven...... |
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Last Edit: 2010/07/13 22:32 By Flashback.
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Re:HSR 45 and MPG 1 Year, 10 Months ago
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