News:

This forum is run by RPM and donations from members.

It is the donations of the members that help offset the operating cost of the forum. The secondary benefit of being a contributing member is the ability to save big during RPM Holiday sales. For more information please check out this link: Membership has its privileges 

Thank you for your support of the all mighty FJ.

Main Menu

rpm @ 55 mph

Started by mikexup, June 23, 2013, 05:45:03 PM

Previous topic - Next topic
Print
Go Down Pages1
User actions

mikexup

June 23, 2013, 05:45:03 PM
Can anyone give me a approximate rpm their fj 1200 is turning at a indicated 55mph. Trying to figure out if mine has had a sprocket change, seems to be geared pretty low compared to other bikes I've ridden.

1tinindian

#1
June 23, 2013, 06:15:38 PM
Start by telling us what year your FJ is.
Different years were geared differently.

We can go from there.

Leon
"I want to be free to ride my machine without being hassled by the "man"!
91 FJ1200

fj11.5

#2
June 23, 2013, 06:23:32 PM
For instance, my 1200 has 17/39 sprockets, and effie the 1100 has 18/38, is yours still running standard gearing,  17Front / 40 41 42 rear,  , somewhere close to standard gearing is around 3,800/4,100 at 100 kmh
unless you ride bikes, I mean really ride bikes, then you just won't get it

84 Fj1100  effie , with mods
( 88 ) Fj 1200  fairly standard , + blue spots
84 Fj1100 absolutely stock standard, now more stock , fitted with Fj12 twin system , no rusted headers for this felicity jayne

mikexup

#3
June 23, 2013, 08:16:10 PM
Quote from: 1tinindian on June 23, 2013, 06:15:38 PM
Start by telling us what year your FJ is.
Different years were geared differently.

We can go from there.

Leon

The bike is a 1989.

Pat Conlon

#4
June 23, 2013, 09:09:25 PM
How many teeth are on your back sprocket?
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

HARTLESS

#5
June 24, 2013, 12:46:20 AM
ive got 17/40 on my 92 and im at about 3,500rpm at 55mph..roughly
STRIVE FOR PERFECTION, SETTLE FOR EXCELENCE

I ride HARTLESS or don't ride at all!

Pat Conlon

#6
June 24, 2013, 09:45:51 AM
Count the number of teeth on your back sprocket, look at the size of your back tire, assume you have a 17 tooth front counter sprocket, then go here and look up the appropriate table: http://www.fjowners.com/index.php?topic=669.0

It's all in the Files.
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

markmartin

#7
June 24, 2013, 05:48:08 PM
Quote from: mikexup on June 23, 2013, 08:16:10 PM

The bike is a 1989.

Mine is an '89 with  18/38 sprockets.

55mph = 2900 rpm in 5th

55mph = 3600 rpm in 4th gear.

Quote from: HARTLESS on June 24, 2013, 12:46:20 AM
ive got 17/40 on my 92 and im at about 3,500rpm at 55mph..roughly

68mph = 3500 rpm in 5th.

All speeds are what is indicated on the speedo.

FYI

Mark M

Firehawk068

#8
June 24, 2013, 08:21:25 PM
I just checked mine on the way home from work today.......

55mph indicated by the FJ speedometer in 5th gear= 3000rpms

55mph actual(according to GPS) in 5th gear = 3500rpms

I have a '90 with 180/55-17 rear tire, and 18/42 gearing.
Alan H.
Denver, CO
'90 FJ1200

Flynt

#9
June 24, 2013, 10:26:37 PM
Quote from: markmartin on June 24, 2013, 05:48:08 PM
...what is indicated on the speedo.

Funny, the only one I can remember is 5,000 at 80mph on speedo...   :dance2:

Frank
There's plenty of time for sleep in the grave...

Pat Conlon

#10
June 24, 2013, 11:54:15 PM
Frank, Frank, Frank, don't you ever go 55?

Like, when you have to slow down and go thru a school zone?
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

FJmonkey

#11
June 25, 2013, 08:23:28 AM
Quote from: Pat Conlon on June 24, 2013, 11:54:15 PM
Frank, Frank, Frank, don't you ever go 55?

Like, when you have to slow down and go thru a school zone?

Frank whent slow once, remember when he told us about the time he chopped the throttle on his new lightened crank engine....  :rofl: :rofl: :rofl: Good thing he already had his kids...
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

Pat Conlon

#12
June 25, 2013, 11:17:41 AM
Nope, Frank has the heavy crank....so to speak...
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Flynt

#13
June 25, 2013, 11:26:25 AM
Quote from: Pat Conlon on June 25, 2013, 11:17:41 AM
Frank has the heavy crank...

:praising:  You say the nicest things Pat...

The other Flatside Frank (East coast version) has the lightened crank.  Mine is uncut thank you...   :lol:

Frank
There's plenty of time for sleep in the grave...

andyb

#14
June 25, 2013, 01:36:01 PM
6-8k @ 55.

All you other people are in the wrong gear.  :)
Print
Go Up Pages1
User actions