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Message started by Krowl on 10/11/06 at 05:49:12

Title: Tach
Post by Krowl on 10/11/06 at 05:49:12

Does anyone know at what RPM the savage is taching at 70 mph? Just curious!

Thanks!!

Title: Re: Tach
Post by JerryAssburger on 10/11/06 at 07:54:45

Oooooh! Ooooh! I know this one!
The answer is, "Walnuts".

Sorry, couldn't resist. Since a stock LS 650 redlines at 100mph, all you have to do is take what percentage of 100 that you want to travel at, and then multiply that times the LS 650's redline... 6500 rpm.

Soooo 70mph is 70% of 100 mph and 70% of 6500 rpm is 4450 rpm@ 70 mph.

Suzuki doesn't give a maximum cruise rpm for the LS 650, but I'm pretty sure 70mph is safe, I don't know about you, but anything above that on mine makes it get a bit buzzy and twitchy. 65-69mph seems to be the sweet spot.

Title: Re: Tach
Post by bikingb on 10/11/06 at 09:32:49

Reelthing has a tach on his.

Title: Re: Tach
Post by Savage_Rob on 10/11/06 at 10:02:18

I used to have an inexpensive digital tach on mine. The vibrations killed it. I shift by feel anyway.

Title: Re: Tach
Post by gary_ona_savage on 10/11/06 at 10:36:38

Tach? Tach? We don't need no stinkin' tach! ;D

I don't think I've ever had a bike with a tach on it. Can't afford those kind of bikes...

Title: Re: Tach
Post by Reelthing on 10/11/06 at 10:56:54

a thing of beauty I tell you! Soon as I get home I'll fire the '95 run it up to 70 and let you know what the baron's tach has to say

http://www.mccserv.com/savage/dscf0065.jpg

Title: Re: Tach
Post by Ballbreaker on 10/11/06 at 11:10:14

Hello, just for those who didn´t know:

Tach in German is a slang-word for Tag what means
day.

Can someone tell me where is the bus with the people in it who wants to know this?

Just kidding,

Greetings from good old germany

Tochsten 8)

Title: Re: Tach
Post by gary_ona_savage on 10/11/06 at 11:34:16

Reelthing wrote:

a thing of beauty I tell you! Soon as I get home I'll fire the '95 run it up to 70 and let you know what the baron's tach has to say

Pretty! Maybe I do need a tach after all...

Title: Re: Tach
Post by barry68v10 on 10/11/06 at 14:25:29

Extrapolating from my owners manual...4000 rpms at 60mph and 5000 rpms at 75 mph. So based on that, it runs 15 mph/1000 rpms in 5th gear. If the owners manual is accurate then you're running 4667 rpms at 70mph...Of course, that's a BIG IF...

Title: Re: Tach
Post by Reelthing on 10/11/06 at 16:36:49

Ok the run is in and matched the numbers fairly well -

todays test mule a 1995 Savage with near new me880's and close to 25k miles:

http://mccserv.com/savage/95mule.jpg

60mph is dead on 4000 rpm and 70mph shows ~4600 rpm, with tad over 5000rpm dead on 75mph

Title: Re: Tach
Post by lancer on 10/11/06 at 16:54:22

My last time out it was showing 3850 @ 60, with a 140/90 on the rear.

Title: Re: Tach
Post by barry68v10 on 10/11/06 at 17:52:15

The larger tire will change your true speed, but won't affect your tach/speedo readings. The speedo is hooked to the tranny. If it were hooked to the front wheel, then rear tire/gear changes wouldn't throw it off. Of course a GPS speedo would be accurate no matter what you did...

Title: Re: Tach
Post by thumperclone on 10/11/06 at 18:40:49

i have a 30 some $ digi tach the feed wraps round the plug wire(direction of wrap from coil to plug) only time i use it is to maintain idle speed and carb tuning..most important is idle speed for proper oil flow at stop lights..
too slow not e nuff flow ,too fast too much heat.. with that said someone tell me why day to day the idle speed changes..humidity,barometric pressure,needle not seating correctly,dirty goggles,old age,too many trips to the dumpster?

Title: Re: Tach
Post by Reelthing on 10/11/06 at 18:55:11

I bet my money on the long term effects of dumpster doings as the likely effect on the idle - could be temp and pressure changes effecting the vac slide, but I'm going with the dumpster

Title: Re: Tach
Post by Enfield_fan on 10/12/06 at 07:21:32

Ballbreaker wrote:

Hello, just for those who didn´t know:

Can someone tell me where is the bus with the people in it who wants to know this?

I don't know, but whereever it is, it is short. =]

Title: Re: Tach
Post by Stimpy on 10/13/06 at 10:34:17

Ooooooo nice ride Reelthing.

Where you got that Tach?
(brand-model-is connected to what?)

Superbrace work?

Title: Re: Tach
Post by Reelthing on 10/13/06 at 18:23:26

the tach is a baron's believe there's a link to it around here someplace - quite easy hook up to the coil - the case came from ebay - can't find a name on it

superbrace works well - it helps the bike track much better say on rain groves and less than smooth roads - along with the me880s

Title: Re: Tach
Post by JerryAssburger on 10/15/06 at 23:50:07

Sorry about the possibly inacurate answer.... I'm assuming you have the 140/90 tire and I have a GPS umit on the handle bars which shows the speedo to indicate about 67mph when the GPS indicates 70. If you can find a cheapie GPS (mine was $65) that has the WAAS feature (within 10' accuracy), I'd highly recommend it. It makes a great gas guage/oil change reminder, and there's a lot of other tricks to be messed with. I just reset the trip @ each fill up and the odometer function at each oil change.