Forum Donations
Search
VTF Google Search
 Click Here

Again about HWY RPM

Technical Virago Help Topics
  • Advertisement

Post a reply

Again about HWY RPM

PostAuthor: pavell1995 » Fri Dec 28, 2012 5:01 am

Hi, I think the same question probably have apeared earlier here, but I couldn't find a real solution yet. In an article, that Flashh wrote, he says, that you can replace the final drive on XV750 with the one from XVZ or V-Max. Is it true or not??? If not, what are other ways to lower the HWY RPM? I am going to take about 5000mile trip this summer on my XV750 1995, but I cannot do that without lower RPM's...

pavell1995
Junior Membership
Junior Membership
 
Posts: 11
Joined: Fri Dec 28, 2012 4:54 am
  Flag
Bike year & model: 1995 XV750 Virago
Sex: Male

Re: Again about HWY RPM

PostAuthor: mark75 » Fri Dec 28, 2012 10:29 am

just about anything can be done with enough modifications.

Viragos will run all day at higher RPM [70-90 MPH] and enjoy it (at least show no sign of dis-liking it).

JMO: cheapest & easiest way to lower Hwy RPM is drive slow and enjoy the scenery. :naughty:
"Over the Mountains of the Moon,
Down the Valley of the Shadow,
Ride, boldly ride" ... E.A. Poe


Time flies >>> whether you're having fun __ :bike: or not :fan: ---

Any day above ground is a good day.
so Laissez les bon temps roulez. just roll safely --- Semper Vigilans...always watchful

"I hear and I forget, I see and I remember, I do and I understand." ... Confucius*

If you don't read the news you are not informed.
If you read the news you are misinformed.
... Mark Twain


-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
The views, opinions, and experiences expressed in this post are mine and may not necessarily represent views and opinions of other VTF members, so feel free to agree, disagree, or ignore them.
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
User avatar
mark75
Mod
Mod
 
Posts: 15724
Images: 15
Joined: Sun Apr 02, 2006 3:57 am
Location: Republic of Texas Flag
Bike year & model: 1982 - XV750
2013 - FXDC Super Glide Custom
*
Sex: Male

Re: Again about HWY RPM

PostAuthor: Streetmedik » Fri Dec 28, 2012 10:31 am

pavell1995 wrote:... but I cannot do that without lower RPM's...


Why? I have put a bit more miles than that on my bike.. 47 MPG.. She never complained about the RPM's
1985 Yamaha Virago XV700 ENGINEcycle

Image


˙uʍop ǝpısdn ǝʞıq ɹnoʎ ǝpıɹ ʇ,uop

User avatar
Streetmedik
Mod
Mod
 
Posts: 4753
Images: 70
Joined: Sat Nov 06, 2010 6:07 pm
Location: Henryetta, Oklahoma, USA, Earth, Sol, Milky Way Galaxy, Local Group, Virgo Supercluster .... Flag
Bike year & model: 1985 XV700N Virago (138,500 miles and counting (222,894 km)) <<i equitare, ergo sum>>
Sex: Male

Re: Again about HWY RPM

PostAuthor: Null [o c t o r] » Fri Dec 28, 2012 11:19 am

JMO: cheapest & easiest way to lower Hwy R P M is drive slow and enjoy the scenery

JMO2
IMHO: Going fast brings you up to and behind cars, that must be passed,
They don't usually know you are there . . . But if you slow it down to the speed limit, or slower,
they must pass you, they obviously know your there then. just a thought about defensive Riding.

For all other speeds, a throttle lock can be bought and it is then easy to hold a slower speed.

These Machines Red Line a 7G, so they must be able to do that,
so the thought of bagging the engine shouldn't be a concern
The fastest, I normally would red line it in my mind it's a RL is 4-5G,
way enough power for street riding in that band width.

If fuel mileage is the issue, put on the tallest tire you can find.
I only had a mini speedo when I did this but raised my top MPH from 105 to 120 by doing that,
so it would translate to lower rpm at normal highway speeds.
It would seem to me that would be the easiest, quikest, and nontinkeringish way to go about it.

Null [o c t o r]
Null Post Error
Null Post Error
 
Posts: 821
Images: 19
Joined: Fri Oct 05, 2012 1:43 am
  Flag
Bike year & model: '000
Sex: Male

Re: Again about HWY RPM

PostAuthor: bstig60 » Fri Dec 28, 2012 1:28 pm

The Virago engine was designed to run at higher RPM's and they will do so all day long. I put 8000 miles on my bike last season without any issues and got between 45 and 53 MPG depending upon conditions. Some have replaced the rear wheel on early model Virago's with the early Seca 18 inch wheel and saw some good reduction in R's at speed. As for the later model bikes, you can put a 150 tire or the bike or perhaps a 160 depending on the brand and how much clearance they have when mounted. As for the wheels you mention, I think you will find they are still 15 inch, if so, you are still limited by the side clearance of the swing arm. As Mark75 says, anything is possible. It all depends on how much time and money you want to put into it.
Bill
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

Please take the time to edit your profile to show your location. City, State/Province, and Country.
It is easier to help you if we know where you are.


SERVICE MANUAL DOWNLOAD LINK
http://viragotechforum.com/viewtopic.php?f=220&t=31501#p279545

Image
User avatar
bstig60
Mod
Mod
 
Posts: 13393
Images: 38
Joined: Sun Jun 08, 2008 6:16 pm
Location: Sharpes, Florida Flag
Bike year & model: 1999 Yamaha Virago XV1100LC Cruiser,
2003 Honda Goldwing GL1800 Touring
2007 Honda ST1300A
1987 Honda TLR200
Sex: Male

Re: Again about HWY RPM

PostAuthor: Null [o c t o r] » Fri Dec 28, 2012 1:39 pm

The Virago engine was designed to run at higher RPM's and they will do so all day long

And it is all a function of Bore and Stroke
It was an old Hot Roding trick,
OVER SQUARE the engine . . . Larger bore size compared to the shorter stroke length,
Makes for a high revving engine.

Null [o c t o r]
Null Post Error
Null Post Error
 
Posts: 821
Images: 19
Joined: Fri Oct 05, 2012 1:43 am
  Flag
Bike year & model: '000
Sex: Male

Re: Again about HWY RPM

PostAuthor: Marvelicious » Fri Dec 28, 2012 2:30 pm

Bore vs stroke is part of it, but it has to be coupled with head design, cam profile, intake design, valve size, exhaust design...

These things are actually fighting themselves on a couple fronts. Yamaha surely didn't build them for racing.

Normally, I'm of the opinion that lower revs wouldn't be a bad thing, but how much gear are you planning on packing for your trip? You might actually be better off leaving well enough alone.

As to your actual question, rather than trying to talk you out of it... Yes, there are solutions, but other than the Seca wheel, my impression is that it would require splitting the cases. Not sure what is meant by "final drive", but I'm pretty sure they already have the best ratio you can get at the rear hub.

read...
viewtopic.php?t=23621
Naturally Aggravated

1981 XV920RH on its way to the café
User avatar
Marvelicious
Silver Membership
Silver Membership
 
Posts: 943
Images: 0
Joined: Tue Aug 16, 2011 12:45 am
Location: NW-OR Flag
Bike year & model: 1981 XV920RH
Sex: Male

Re: Again about HWY RPM

PostAuthor: cknowles63 » Fri Dec 28, 2012 2:53 pm

I put 10,000 kms on my '97 Virago this year . It pulls so effortlessly in 5th gear from 70km/h up to whatever speed I dare reach. At 110 km/h (70 mph) it's still just below 4,000 rpm. In the 10,000 kms my lowest fuel mileage was 5.3 l/100km and the best was 4.4 l/100km with the average right in around 4.9 l/100km

I rarely rev the engine over 6,000 as nothing much happens there. 5,000 seems to be the sweet spot for shifting. These engines love to rev more than they like being lugged.
1997 Virago 1100S - 1999 Virago 1100S
Image

Mount Hope, Ontario
User avatar
cknowles63
Senior Membership
Senior Membership
 
Posts: 323
Joined: Mon Aug 22, 2011 5:56 pm
Location: Hamilton, Ontario Canada Flag
Bike year & model: 1997 Virago 1100S
1999 Virago 1100S
Sex: Male

Re: Again about HWY RPM

PostAuthor: Streetmedik » Fri Dec 28, 2012 3:40 pm

I am still wanting to know why the OP can not make his trip unless he can lower the RPM's
1985 Yamaha Virago XV700 ENGINEcycle

Image


˙uʍop ǝpısdn ǝʞıq ɹnoʎ ǝpıɹ ʇ,uop

User avatar
Streetmedik
Mod
Mod
 
Posts: 4753
Images: 70
Joined: Sat Nov 06, 2010 6:07 pm
Location: Henryetta, Oklahoma, USA, Earth, Sol, Milky Way Galaxy, Local Group, Virgo Supercluster .... Flag
Bike year & model: 1985 XV700N Virago (138,500 miles and counting (222,894 km)) <<i equitare, ergo sum>>
Sex: Male

Re: Again about HWY RPM

PostAuthor: peter750 » Fri Dec 28, 2012 5:03 pm

I have a 750, it will sit on 5500 revs all day, thats 130km or 80mph. Maybe you should duck tape your taco, & have a great trip :bg: .
Travel by gravel and double your map
User avatar
peter750
Junior Membership
Junior Membership
 
Posts: 73
Joined: Sun Dec 02, 2012 12:12 am
Location: Sydney Australia Flag
Bike year & model: 1996 xv750 virago
Sex: Male

Re: Again about HWY RPM

PostAuthor: bstig60 » Fri Dec 28, 2012 6:17 pm

I don't mean to be a "wise apple", but you could put a reduction gear on your tach so it only reads 2500 RPM and all would be well. Seriously, it would probably be cheaper to buy another bike than to change the gearing on the XV. Even if you did make the change, then you would find yourself doing a lot more shifting. This isn't a 100 HP engine........
Bill
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

Please take the time to edit your profile to show your location. City, State/Province, and Country.
It is easier to help you if we know where you are.


SERVICE MANUAL DOWNLOAD LINK
http://viragotechforum.com/viewtopic.php?f=220&t=31501#p279545

Image
User avatar
bstig60
Mod
Mod
 
Posts: 13393
Images: 38
Joined: Sun Jun 08, 2008 6:16 pm
Location: Sharpes, Florida Flag
Bike year & model: 1999 Yamaha Virago XV1100LC Cruiser,
2003 Honda Goldwing GL1800 Touring
2007 Honda ST1300A
1987 Honda TLR200
Sex: Male

Re: Again about HWY RPM

PostAuthor: bstig60 » Fri Dec 28, 2012 6:48 pm

peter750 wrote: Maybe you should duck tape your taco, & have a great trip :bg: .


If I read your comment correctly, this isn't appropriate. The OP is asking for help and some of us are trying our best to help him out.......... Sooooooooo..........
Bill
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

Please take the time to edit your profile to show your location. City, State/Province, and Country.
It is easier to help you if we know where you are.


SERVICE MANUAL DOWNLOAD LINK
http://viragotechforum.com/viewtopic.php?f=220&t=31501#p279545

Image
User avatar
bstig60
Mod
Mod
 
Posts: 13393
Images: 38
Joined: Sun Jun 08, 2008 6:16 pm
Location: Sharpes, Florida Flag
Bike year & model: 1999 Yamaha Virago XV1100LC Cruiser,
2003 Honda Goldwing GL1800 Touring
2007 Honda ST1300A
1987 Honda TLR200
Sex: Male

Re: Again about HWY RPM

PostAuthor: pavell1995 » Fri Dec 28, 2012 6:58 pm

I cannot make the trip, because I want to do 70MPH at about 2500-3000 RPM. I don't like the vibration it makes at speed of 70MPH (4500-5000RPM). What is the tallest tire, you can put on XV750 1995 ? So, did anyone try to change the rear hub?
And some off topic. Does anyone happen to have a 1995 XV750 virago green gas tank in a good condition? I got into an accident on the 15th of november and do need a new one.

pavell1995
Junior Membership
Junior Membership
 
Posts: 11
Joined: Fri Dec 28, 2012 4:54 am
  Flag
Bike year & model: 1995 XV750 Virago
Sex: Male

Re: Again about HWY RPM

PostAuthor: Streetmedik » Fri Dec 28, 2012 7:08 pm

pavell1995 wrote:..... I don't like the vibration it makes at speed of 70MPH (4500-5000RPM). .....



Have you double checked your wheel balance? My 700 does not vibrate any more at 5000RPM than it does at 2000RPM. I am thinking if you have a bad vibration, there must be a reason for it. My bike vibrates far less than my uncle's 2 year old HD.
1985 Yamaha Virago XV700 ENGINEcycle

Image


˙uʍop ǝpısdn ǝʞıq ɹnoʎ ǝpıɹ ʇ,uop

User avatar
Streetmedik
Mod
Mod
 
Posts: 4753
Images: 70
Joined: Sat Nov 06, 2010 6:07 pm
Location: Henryetta, Oklahoma, USA, Earth, Sol, Milky Way Galaxy, Local Group, Virgo Supercluster .... Flag
Bike year & model: 1985 XV700N Virago (138,500 miles and counting (222,894 km)) <<i equitare, ergo sum>>
Sex: Male

Re: Again about HWY RPM

PostAuthor: Streetmedik » Fri Dec 28, 2012 7:45 pm

peter750 wrote:I......Maybe you should duck tape your taco, & have a great trip .. .

No need for such rude comments. The OP had a question he wanted answered.
1985 Yamaha Virago XV700 ENGINEcycle

Image


˙uʍop ǝpısdn ǝʞıq ɹnoʎ ǝpıɹ ʇ,uop

User avatar
Streetmedik
Mod
Mod
 
Posts: 4753
Images: 70
Joined: Sat Nov 06, 2010 6:07 pm
Location: Henryetta, Oklahoma, USA, Earth, Sol, Milky Way Galaxy, Local Group, Virgo Supercluster .... Flag
Bike year & model: 1985 XV700N Virago (138,500 miles and counting (222,894 km)) <<i equitare, ergo sum>>
Sex: Male

Re: Again about HWY RPM

PostAuthor: bstig60 » Fri Dec 28, 2012 7:48 pm

Street is correct, check the balance on your tires. If you are going on a 5000 mile trip, I would start with new tires front and rear. If the others are good, save them for shorter rides. I have owned a 920. a 700. a late model 750. and two 1100's in recent years and with the proper balance on the tires, none of the had any vibration to speak of at any RPM. The tallest tire you are going to be able to put on the rear is 160.90R15 and that will depend on the brand of tire. Most likely you will have to live with a 150.90R15, I know Dunlop and Michlen both make these sizes, Metzler as well, but I can't assure you they will give you the clearance you need. You have to think about bottoming out on the fender as well as the width of the tire.
As for cruising at 2500*3000 RPM, its not going to happen on a Virago no matter what kind of tire you put on it. That's a Sportster's range. Want vibration?????
Bill
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

Please take the time to edit your profile to show your location. City, State/Province, and Country.
It is easier to help you if we know where you are.


SERVICE MANUAL DOWNLOAD LINK
http://viragotechforum.com/viewtopic.php?f=220&t=31501#p279545

Image
User avatar
bstig60
Mod
Mod
 
Posts: 13393
Images: 38
Joined: Sun Jun 08, 2008 6:16 pm
Location: Sharpes, Florida Flag
Bike year & model: 1999 Yamaha Virago XV1100LC Cruiser,
2003 Honda Goldwing GL1800 Touring
2007 Honda ST1300A
1987 Honda TLR200
Sex: Male

Re: Again about HWY RPM

PostAuthor: jfradsham » Fri Dec 28, 2012 10:17 pm

Something doesn't seem right here. My recent addition just SINGS at 70 moh, smooth as silk. Something is wrong with his bike.

2009 xv250, Cobra luggage rack, Cobra crash bars, Wolo Bad Boy, ChromeGlow LED mirrors, TBag hard saddlebags, homemade LED brake and driving lights, Slip Stream windshield, JT 17/38 gear set, DID Oring chain,
1996 xv750, new to the corral,
User avatar
jfradsham
Silver Membership
Silver Membership
 
Posts: 564
Images: 4
Joined: Sun Mar 25, 2012 4:05 pm
Location: Virginia Flag
Bike year & model: 2009 V Star250
1996 xv750
Sex: Male

Re: Again about HWY RPM

PostAuthor: Marvelicious » Sat Dec 29, 2012 2:30 am

pavell1995 wrote:...So, did anyone try to change the rear hub?...


You can change the hub, but all the other gears are even worse.

This is info of an xs1100 site, so their notes are about that swap... also, I have not verified anything here...

FINAL DRIVES.......YEAR/MODEL........................RING/PINION.....NOTES
5JW-W4612-00-00....03-05 FJR1300.....................33/9, 3.667.....2,6,8
3P6-W4612-01-00....06-up FJR1300.....................33/9, 3.667.....2,6,8
1FK-46101-01-00....85-95 VMX1200 V-Max...............33/9, 3.667.....2,5,9
1FK-46101-02-00....96-97 VMX1200 V-Max...............33/9, 3.667.....2,5,9
1FK-46101-10-00....98-up VMX1200 V-Max...............33/9, 3.667.....2,5,9
4R0-46101-00-00....82 XJ1100......................33/10, 3.3......1,4,7
4H7-46101-00-00....80-81 XJ650.......................32/11, 2.909....3,5,9
5G2-46101-00-00....82-83 XJ650.......................32/11, 2.909....3,5,9
5G2-46101-01-00....85-86 XJ700 Maxim.................32/11, 2.909....3,5,9
5G2-46101-00-00....81-83 XJ750.......................32/11, 2.909....3,5,9
31A-46101-00-00....83 XJ900.......................32/11, 2.909....3,5,9
2H7-46101-00-00....78-80 XS1100......................33/10, 3.3......1,4,7
4R0-46101-00-00....81 XS1100......................33/10, 3.3......1,4,7
1J7-46101-N0-00....77-79 XS750.......................32/11, 2.909....2,4,8
3J2-46101-N0-00....80 XS850.......................32/11, 2.909....2,4,9
4R2-46101-N0-00....81 XS850.......................32/11, 2.909....2,4,9
5G2-46101-01-00....84-85 XV1000 Virago 1000..........32/11, 2.909....3,5,9
56W-46101-02-00....84-85 XV1000 Virago 1000..........32/11, 2.909....3,5,9
56W-46101-02-00....86-99 XV1100 Virago 1100..........32/11, 2.909....3,5,9
2NT-46101-00-00....87-88 XV535 Virago 535............32/11, 2.909....A
2NT-46101-00-00....90 XV535 Virago 535............32/11, 2.909....A
2NT-46101-00-00....93-00 XV535 Virago 535............32/11, 2.909....A
5G2-46101-01-00....84-85 XV700 Virago 700............32/11, 2.909....3,5,9
5G2-46101-01-00....88-97 XV750 Virago 750............32/11, 2.909....3,5,9
5EL-46101-00-00....99-up XVS1100 V Star 1100.........32/11, 2.909....3,6,9
5FB-Y4617-00-00....98-up XVS650 V Star 650...........32/11, 2.909....A
26H-46101-01-00....83-85 XVZ1200 Venture (Royale)....33/10, 3.3......1,4,7
1NL-46101-00-00....86-93 XVZ1300 Venture (Royale)....33/10, 3.3......2,5,9
4NK-46101-00-00....96-97 XVZ1300 Royal Star..........33/10, 3.3......2,6,9
4YE-46101-00-00....98-00 XVZ1300 Royal Star..........33/10, 3.3......2,6,9
4XY-46101-00-00....01-up XVZ1300 Royal Star..........33/10, 3.3......2,6,9


Notes:
1. fully splined pinion coupler
2. recessed splines on pinion coupler, drive shaft spacer required
3. unknown if pinion coupler is fully splined (recessed splines probable)
4. final drive shock mount
5. final drive shock mount relocation or R1 mono shock required
6. no final drive shock mount, R1 mono shock mod recommended
7. no pinion coupler oil passages
8. pinion coupler oil passages, RTV and washer required
9. unknown if pinion coupler oil passages exist (oil passages probable)
A. final drive pinion coupler not compatible with XS1100 drive shaft


Since numerically lower is what you want, there are no real options...
Naturally Aggravated

1981 XV920RH on its way to the café
User avatar
Marvelicious
Silver Membership
Silver Membership
 
Posts: 943
Images: 0
Joined: Tue Aug 16, 2011 12:45 am
Location: NW-OR Flag
Bike year & model: 1981 XV920RH
Sex: Male

Re: Again about HWY RPM

PostAuthor: peter750 » Sat Dec 29, 2012 3:19 am

I am not being rude. A XV 750 is fine at 5500revs. You put duck tape over the taco {so you don't look at it & worry} get her up to 70/ 80mph and go on your trip {How is that being rude ???}. Yamaha geared the 1100 taller than the 750 because it will pull taller gearing. The other side of the coin you could say buy a 1100 if you want lower revs at X speed. If you put 1100 gearing on the 750 it will be a POS to ride anywhere near a hill, thats why YAMAHA didn"t gear the 1100 & 750 the same. Option A go on your trip and have a good time. Option B F up your gearing & hope you don't have to ride up a hill Option C buy a new bike. I don't no how any of this is being rude. If his bike is a paint shaker at 3000 revs, thats what he should of said, then we could work out whats wrong with the bike.
Travel by gravel and double your map
User avatar
peter750
Junior Membership
Junior Membership
 
Posts: 73
Joined: Sun Dec 02, 2012 12:12 am
Location: Sydney Australia Flag
Bike year & model: 1996 xv750 virago
Sex: Male

Re: Again about HWY RPM

PostAuthor: Marvelicious » Sat Dec 29, 2012 3:34 am

Duct tape over the tachometer... :bg: I thought you meant something else by "taco"...
Naturally Aggravated

1981 XV920RH on its way to the café
User avatar
Marvelicious
Silver Membership
Silver Membership
 
Posts: 943
Images: 0
Joined: Tue Aug 16, 2011 12:45 am
Location: NW-OR Flag
Bike year & model: 1981 XV920RH
Sex: Male


Next

Post a reply


  • Advertisement

Return to Virago Help "Tech"

Who is online

Registered users: Baidu [Spider]