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Need Advice "gearing"

Started by holes41, May 19, 2014, 10:43:08 PM

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aviationfred

Quote from: Pat Conlon on May 21, 2014, 09:11:27 PM
You guys, that is some amazing mileage.....stock jetting Fred?

Honestly Pat, I have no idea what my jetting is. :flag_of_truce:

I have a Vance & Hines SS2r 4-1 exhaust and Uni pods and 17" rear wheel. I know the jetting is not perfect, a minor off idle stumble that is barely noticeable. Over all it runs very well and gets great mileage. My trip with the 53mpg legs was also done with about 1000 miles on a freshly rebuilt head by RPM.  :yahoo:

Fred
I'm not the fastest FJ rider, I am 'half-fast', the fastest slow guy....

Current
2008 VFR800 RC46 Vtec
1996 VFR750 RC36/2
1990 FJ1300 (1297cc) Casper
1990 VFR750 RC36/1 Minnie
1989 FJ1200 Lazarus, the Streetfighter Project
1985 VF500F RC31 Interceptor

Capn Ron

I'm on the stock 17-40 gearing, I regularly get around 45 MPG with the occasional 48 MPG fully loaded with the Givis.



On the same ride, same roads, same day...the Monkey's fuel mileage is definitely better than mine.  Gearing?  Radials?  Jetting?  Riding style?  All the above?   :unknown:
Cap'n Ron. . .


There are two types of people in the world...Those who put people into categories...and those who don't.

simi_ed

I've ridden with FJMonkey also with similar results. He's in the high 40s while I'm in the low 40s. My Dad was similar to Mark except the Old Man was usually in the low 50s!!!  When I rode with my Dad at the same speeds & style we were identical. Mark & my Dad ride (rode) with a gentle throttle hand and minimal brakes. Energy conservation yields high gas mileage.

I find this too boring. I'd rather scrub the speed off with the brakes and get more speed with more throttle!  I enjoy that and gladly pay for it at the gas pump.

Ed
-- RKBA Regards,

Ed
===
Ed Thiele 
Simi Valley, CA -- I no longer have SoCal manners.
'89 FJ12C (Theft deterrent Silver/White)


- All that is necessary for the forces of evil to win in the world is for
enough good men to do nothing.

- Edmund Burke

Capn Ron

Yeah...on my commuter car (2006 Honda Insight, 5-speed), if I'm aggressive with the throttle, I get high 50's...If I roller coaster the hills, time the red lights and basically "smooth" everything out, I can easily get 70MPG.  One 3,000 mile trip, I averaged 75 MPG and my best tank was just a nick over 80 MPG!!   :good2:



On the FJ, however, I just LOVE the rush of acceleration and keeping as much speed into a corner as I can manage, then late braking and back on the throttle!  ..too good to pass up and the mileage doesn't matter!

The biggest factor in MPG is the guy behind the accelerator.  :yes:
Cap'n Ron. . .


There are two types of people in the world...Those who put people into categories...and those who don't.

simi_ed

Quote from: simi_ed on May 21, 2014, 11:28:57 PM
I've ridden with FJMonkey also with similar results. He's in the high 40s while I'm in the low 40s. My Dad was similar to Mark except the Old Man was usually in the low 50s!!!  When I rode with my Dad at the same speeds & style we were identical. Mark & my Dad ride (rode) with a gentle throttle hand and minimal brakes. Energy conservation yields high gas mileage.

I find this too boring. I'd rather scrub the speed off with the brakes and get more speed with more throttle!  I enjoy that and gladly pay for it at the gas pump.

Ed
Addition:  If I wanted good fuel mileage, I'd do like Ron & get a Honda Insight & do the roller coaster thing.  Maybe later ...
-- RKBA Regards,

Ed
===
Ed Thiele 
Simi Valley, CA -- I no longer have SoCal manners.
'89 FJ12C (Theft deterrent Silver/White)


- All that is necessary for the forces of evil to win in the world is for
enough good men to do nothing.

- Edmund Burke

The General

`93 with downside up forks.
`78 XS11/1200 with a bit on the side.
Special edition Rocket Ship ZX14R Kwacka

Burns

Quote from: The General on May 22, 2014, 01:59:32 AM
If ya want Horsepower, Torque and fantastic miles per gallon on two wheels, get one of these!

http://www.gizmag.com/lightning-ls218-unveiled-specs/32142/?utm_source=Gizmag+Subscribers&utm_campaign=eb1ce2d767-UA-2235360-4&utm_medium=email&utm_term=0_65b67362bd-eb1ce2d767-90195777

Shocking performance.

When/if standardized batteries and a support system for swapping in fresh ones comes along the electric vehicles will rule.
There's nothing you can do that can't be done.

TexasDave

Quote from: The General on May 22, 2014, 01:59:32 AM
If ya want Horsepower, Torque and fantastic miles per gallon on two wheels, get one of these!

http://www.gizmag.com/lightning-ls218-unveiled-specs/32142/?utm_source=Gizmag+Subscribers&utm_campaign=eb1ce2d767-UA-2235360-4&utm_medium=email&utm_term=0_65b67362bd-eb1ce2d767-90195777
The best looking electric I've seen. Most of them look like a suitcase with wheels on each end. I would like to have one but at $38,000+ I would have to win the lottery first.  Dave
A pistol is like a parachute, if you need one and don't have one you will never need one again.

fj1289

Quote from: TexasDave on May 22, 2014, 11:48:04 AM
Quote from: The General on May 22, 2014, 01:59:32 AM
If ya want Horsepower, Torque and fantastic miles per gallon on two wheels, get one of these!

http://www.gizmag.com/lightning-ls218-unveiled-specs/32142/?utm_source=Gizmag+Subscribers&utm_campaign=eb1ce2d767-UA-2235360-4&utm_medium=email&utm_term=0_65b67362bd-eb1ce2d767-90195777
The best looking electric I've seen. Most of them look like a suitcase with wheels on each end. I would like to have one but at $38,000+ I would have to win the lottery first.  Dave

If I won the lottery I'd be buying an old DC-3 or flying "boat" of some variety!

holes41

I will go with the 18 to start, will I need any other parts while I am in there like gaskets or a new washer? I am excited to get it done. I've been told it will feel like a completely different bike going from 16 to 18. thanks for all the help gentlemen.

Mark Olson

there is a gearing chart somewhere in the files section...

personally I like 17/41 gearing on my 86.. I get avg of 42 mpg and worst of 38 mpg when heavy handed.
Mark O.
86 fj1200
sac ca.

                           " Get off your ass and Ride"

Burns

Quote from: fj1289 on May 22, 2014, 11:52:53 AM
Quote from: TexasDave on May 22, 2014, 11:48:04 AM
Quote from: The General on May 22, 2014, 01:59:32 AM
If ya want Horsepower, Torque and fantastic miles per gallon on two wheels, get one of these!

http://www.gizmag.com/lightning-ls218-unveiled-specs/32142/?utm_source=Gizmag+Subscribers&utm_campaign=eb1ce2d767-UA-2235360-4&utm_medium=email&utm_term=0_65b67362bd-eb1ce2d767-90195777
The best looking electric I've seen. Most of them look like a suitcase with wheels on each end. I would like to have one but at $38,000+ I would have to win the lottery first.  Dave

If I won the lottery I'd be buying an old DC-3 or flying "boat" of some variety!

$38K probably wouldn't cover the engine rebuilds, you're gonna need Power Ball!
There's nothing you can do that can't be done.

bigbore2

18/38 gearing and 50+ mpg. at 75-80mph.  I have the Unipods on for air cleaners, main jet is way bigger 122, I believe, and 4 into 1 Yoshimura pipe from back in the 80's style.