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Re:HSR 42 Information
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TOPIC: Re:HSR 42 Information
#262446
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Re:HSR 42 Information 4 Years, 7 Months ago  
Nice Idea using the pins for the drive mech. I still have the voes on mine, but have thought about doing that very thing..
 
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#262451
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Re:HSR 42 Information 4 Years, 7 Months ago  
Pingel and 5/8" id braided line. Should flow OK . . .
 
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#262483
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Re:HSR 42 Information 4 Years, 7 Months ago  
Pingel and 5/8" id braided line. Should flow OK

You got to be kiddin.......right,, 5/8" id is as big as a garden hose.....
 
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#262581
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Re:HSR 42 Information 4 Years, 7 Months ago  
Ooops ! Yeah, I don't think the Roady would guzzle quite THAT much fuel.

It's 5/8" OD, I think it's 3/8" or 5/16" ID if I recall. Probably overkill but it looks cool. I suspect the stock petcock & fuel line could have kept up fine (vented of course)but I didn't want to get everything installed and buttoned up only to find out later that it couldn't.

Rup
 
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Re:HSR 42 Information 4 Years, 7 Months ago  
I hear ya.........It's got the gas if it needs it... I know you will like the carb change... I hope to get some riding in tommorrow as I did all my honeydo's today.... Bushrjackson lives in Canada, and he said 50* tomorrow, so maybe you will get a shot at it too...
 
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#263085
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Re:HSR 42 Information 4 Years, 7 Months ago  
Well, I took her for a quick spin this AM and WOW !! Feels much "tighter" throttle inputs are felt instantly ! Sounds cool too, especially at idle (rattle, rattle).

It ran good and pulls hard, although I couldn't really open her up. I think I'm a tiny bit lean at idle perhaps & will have to test main jet & needle settings at some point. Here's where I wound up:

- PMS 2 turns out
- 165 Main
- #50 accel nozzle
- Needle settings untouched (as it came from Mikuni)
- Stock pilot jet
- "Short" idle adjuster
- DIY ported manifold c/w lapped flange faces
- Stock choke cable- tweaked slightly
- Stock throttle cable (pull only) - tweaked slightly
- TPS @ 680 ohms (calculated optimum to be 677 as per manual - close enough)

NICE !! Once I get 'er perfectly dialed in I'm going to put the 31T sprocket on for a real kick-in-the-pants !!

Rup
 
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#263098
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Re:HSR 42 Information 4 Years, 7 Months ago  
Ruprect wrote:
Well, I took her for a quick spin this AM and WOW !! Feels much "tighter" throttle inputs are felt instantly ! Sounds cool too, especially at idle (rattle, rattle).

It ran good and pulls hard, although I couldn't really open her up. I think I'm a tiny bit lean at idle perhaps & will have to test main jet & needle settings at some point. Here's where I wound up:

- PMS 2 turns out
- 165 Main
- #50 accel nozzle
- Needle settings untouched (as it came from Mikuni)
- Stock pilot jet
- "Short" idle adjuster
- DIY ported manifold c/w lapped flange faces
- Stock choke cable- tweaked slightly
- Stock throttle cable (pull only) - tweaked slightly
- TPS @ 680 ohms (calculated optimum to be 677 as per manual - close enough)


NICE !! Once I get 'er perfectly dialed in I'm going to put the 31T sprocket on for a real kick-in-the-pants !!

Rup



Did ya double check the resistance after you tightened it down? even a half hair movement can change the resistance value a lot. I ended up about 50 ohms higher than what the manual calculations were, felt it to be a hair better that way. Also, did you shave off the 2 small nubs on the manifold carb junction side, they are there to center the stock carb, but shaved off will give a slightly better seat for the 42. On a good solid cruise 60, 70mph no higher, no blipping, no quick revs, a solid cruise, you should have no less than low to mid 40's mpg, and no more than 50, 51mpg. if below 40 then might want to use the #98 needle. either needle is ok to use 2nd groove, stock is 3rd groove, and never use a extra washer for half steps as far as idle, make final idle adjustment after fully warmed, idle, not pilot screw. but even that too should be done on a fully warmed engine
 
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#263347
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Re:HSR 42 Information 4 Years, 7 Months ago  
Yes to all ! TPS final setting was checked on the bike after it was tightened and run for a few minutes. Both nubs removed. Carb seems to seat great, nice & tight to the manifold.

Bike runs great so far. I think a little bit of fine tuning is all I'm going to need to really get everything out of it. Once I feel I have it dialed in I'm going to take it to the race shop down the street for a few dyno runs to check out AFR, etc.

I'll keep everyone posted as to how it goes.

Rup
 
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#263374
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Re:HSR 42 Information 4 Years, 7 Months ago  
BTW, I used the afr chart from this article, I did try to use the leaner a/f in each circuit shown to still have the economy side. and more so for the cruise portion, found that the 14 at cruise yielded me 50mpg and at 13 for cruise 40mpg, and with the price of gas and the amount of miles I do (22k yrly) I like the 50mpg, but still rich enough at wot that performance is still fantastic. I don't care much for what the hp and tq are, since the operator can manipulate those numbers as well, but if afr is where it needs to be, hp and tq fall into place as well. the guy I use also uses the dyna brand exhaust gas analyzer, only real way to screw up that reading is not having the sniffer sitting in the pipe correctly. any way, hope this helps, use what ya need, toss the rest

here's the article: http://www.daytona-sensors.com/tech_tuning.html

also, if not using the Yost power tube, might want to consider it, really helps to atomize the gas, my wot was so rich that I had to drop down from a 165 to a 160. with the 165 afr was aprox 11.6, There was no reason for my riding style to be that rich, rare that I ride past 80 any way, but even so, if I need to pass, I get no indications of being lean w/160
 
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#283877
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Re:HSR 42 Information 4 Years, 5 Months ago  
Just a quick update for everyone - Bike is still running great ! I finally got a chance to set up the pilot mixture properly. I wound up about 1-1/8 turns out. Now it warms up better and doesn't backfire on decel. While I had the air filter off (to get at the pms) I re-aimed the accel pump nozzle so it squirts just past the needle.

I haven't had a chance to dyno it yet but I'm sure I'm pretty close on all settings. No backfire on decel or when I blip the throttle & pulls hard and smooth all the way to redline. Haven't ridden far enough yet to check cruising mileage. I'll be making a dyno appointment soon to check the AFR's.

On to the next project now ! I want to lower my hard bags 3". I'm making myself a set of lowering brackets similar to Geno's but the fender brackets will mount inside the fender so as not to be visible. I'll also be slightly re-working the braces on the saddlebag mounts so I can move everything in closer to the fender without the swingarm hitting them.
 
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Last Edit: 2010/05/22 15:30 By Ruprect.
 
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