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Re:HSR 42 Information
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TOPIC: Re:HSR 42 Information
#240345
Makcap (User)
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Gender: Male makcap33 Location: massillon ohio Birthdate: 1967-07-12
Re:HSR 42 Information 4 Years, 11 Months ago  
smhowse wrote:
I finally got my HSR 42 and got it installed. I don't think it's quite right but, I don't really know what to adjust.

Here are my settings:

TPS mod
98 needle with clip 3rd groove (from blunt end)
Yost tube with the harley jet types 165main
stock 25 pilot
PMS 1 1/4 turns out
No fuel pump direct line through a pingle filter
short idle screw
Pull throttle cable only Maxair custom cable
Mikuni choke cable

I have an 05 1700,
Hand ported stock manifold with oversized Orings
Barons teardrop BAK
Dyna 3000 (34A)
31 tooth pulley
Iridium plugs


I get a lot of backfire on decel. TONS more power no more throttle lag too!
Severe backfire through carb but, it seems to go away after a good ride. WOT seems good no change on roll off.
I sprayed WD-40 all over the manifold and couldn't find any leaks (no change in idle after warm)

Steven


check you spigot to intake and exhaust sounds like a leak till she is warmed up. What is the float level and what is your miles to reserve.
 
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[img size=150][/img]RIDE DS:219


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#240382
smhowse (User)
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Re:HSR 42 Information 4 Years, 11 Months ago  
I soldered the spigot on intake manifold shut AND put a rubber plug on it.
Float level is set to Mikuni tuning manual. Dunno on reserve yet I've only ridden about 20 miles or so since I installed it. My wife wouldn't let me go for a long ride on Thanksgiving (leaving her alone with 20 guests)

I hope to take it out some more today.

BTW I was riding it at night when it was cooler (54degrees) dunno it that would have an effect too

Steven
 
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#240384
smhowse (User)
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Re:HSR 42 Information 4 Years, 11 Months ago  
ironman wrote:
question, ballpark $$$,how much for a COMPLETE change-over?

I have a like new HSR45 with the TPS installed ready to go if you want to mess with it $300 shipped.

Otherwise check out Maxair Engineering

Steven
 
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Last Edit: 2009/11/27 14:54 By smhowse.
 
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#240398
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Re:HSR 42 Information 4 Years, 11 Months ago  
I have a like new HSR45 with the TPS installed ready to go if you want to mess with it $300 shipped.

Hey Steven , Why ( if you dont mind me asking , and I have followed the thread about your ebay purchase ! ) are you not giving the 45 a try ? Seems to me that if the Jet sizes and nozzels can be matched the only thing different would be the amount of air possible to be sucked in to the intake , which is kind of controlled by the demand capacity . Guess Im trying to talk myself into Buying it from you , Be nice to hear some mikuni HSR experts on the subject like mayby erbman !!!
Sailrider
 
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#240405
Makcap (User)
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Re:HSR 42 Information 4 Years, 11 Months ago  
I was talking about the back of the carb to the manifold are you able to move the carb when mated in out side to side. On exhaust anywhere it has a joint or mating surface. Just trying to not jump the gun to anything. I'm sure you know the pms is air on the 42 not fuel. Is that the needle it came with .
Another way to check the intake is a flash light or a bore light turn the lights out and see if you see any light.
 
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Last Edit: 2009/11/27 18:04 By Makcap.
 
[img size=150][/img]RIDE DS:219


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#240421
smhowse (User)
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Re:HSR 42 Information 4 Years, 11 Months ago  
sailrider wrote:
I have a like new HSR45 with the TPS installed ready to go if you want to mess with it $300 shipped.

Hey Steven , Why ( if you dont mind me asking , and I have followed the thread about your ebay purchase ! ) are you not giving the 45 a try ? Seems to me that if the Jet sizes and nozzels can be matched the only thing different would be the amount of air possible to be sucked in to the intake , which is kind of controlled by the demand capacity . Guess Im trying to talk myself into Buying it from you , Be nice to hear some mikuni HSR experts on the subject like mayby erbman !!!
Sailrider


My reason for not using the HSR45 is I never plan on moding the engine internally (high comp pistons, boring out etc.) That is the primary use for the 45. There are a few that have used the HSR45 on their R* stock engine (Flashback) but, according to the ones who have the 45 on stock engines it is a little more work to dial it in. I did a lot of research and had my mind set on using a HSR42 so thats what I wanted. If I had not been able to find one for the price I would have gone with the 45 and made it work.

Steven
 
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#240422
smhowse (User)
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Re:HSR 42 Information 4 Years, 11 Months ago  
Makcap wrote:
I was talking about the back of the carb to the manifold are you able to move the carb when mated in out side to side. On exhaust anywhere it has a joint or mating surface. Just trying to not jump the gun to anything. I'm sure you know the pms is air on the 42 not fuel. Is that the needle it came with .
Another way to check the intake is a flash light or a bore light turn the lights out and see if you see any light.


The carb doesn't move at all I've tightened the clamp really good (removed the spacer) I will try the flashlight too. The exhaust hasn't been touched since I put it on over 20,000 miles ago and I used new gaskets.

Steven
 
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#240435
Makcap (User)
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Re:HSR 42 Information 4 Years, 11 Months ago  
Don't forget where the header and muffler meet. Never hurts to just put a wrench and check. These bikes vibrate and a little leak can cause problems.
 
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[img size=150][/img]RIDE DS:219


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#240442
Erbman02 (User)
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Re:HSR 42 Information 4 Years, 11 Months ago  
smhowse wrote:
I finally got my HSR 42 and got it installed. I don't think it's quite right but, I don't really know what to adjust.

Here are my settings:

TPS mod
98 needle with clip 3rd groove (from blunt end)
Yost tube with the harley jet types 165main
stock 25 pilot
PMS 1 1/4 turns out
No fuel pump direct line through a pingle filter
short idle screw
Pull throttle cable only Maxair custom cable
Mikuni choke cable

I have an 05 1700,
Hand ported stock manifold with oversized Orings
Barons teardrop BAK
Dyna 3000 (34A)
31 tooth pulley
Iridium plugs


I get a lot of backfire on decel. TONS more power no more throttle lag too!
Severe backfire through carb but, it seems to go away after a good ride. WOT seems good no change on roll off.
I sprayed WD-40 all over the manifold and couldn't find any leaks (no change in idle after warm)

Steven


What are your temps where you are? Could be carb coughs from too cold temps too. Don't use wd40 for leaks, get a can of starter fluid. My last leak couldn't find with carb cleaner, but the starter fluid picked it up. did you use the #50 pump nozzle? The 1 1/4 turns seems rich, what resistance did you set the TPS, did you recheck ohms after you tighten the screws? I've seen resistance change after the tps was tightened down, so it needs to be double checked to ensure it didn't change. Winter is the worst time of yr for carb tuning. The severe back fire and excessive carb coughs are lean conditions, sounds like an air leak. manifold vacuum port sealed? at the worst might get a bit more decel popping when cold, but not backfire.
 
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#240474
smhowse (User)
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Re:HSR 42 Information 4 Years, 11 Months ago  
Went for a ride again tonight it was about 50 degrees so not too cold. I rode about 30 miles freeway avg 75mph then down a curvy road to my house, riding hard 3 & 4 gear there was a lot of poping on decel.

I did put the #50 nozzle in.
I didn't do anything to the tps resistance.... I just bolted it on and thats it
I have the PMS to about 3/4 turns out now. It seems a little better. I'm going to take it out again tomorrow for a good ride during the day (70-80's) I will pick up some starter fluid too.

I soldered the manifold vacuum port closed and put a rubber boot on it too.

Except for the popping on decel it runs really good.

Man, I will say it sure adds some power and she sounds like a race car now!

Steven
 
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