SuzukiSavage.com - New to Motorcycles

Welcome, Guest. Please Login or Register :: View Members

SuzukiSavage.com › General Category › Rubber Side Down! › New to Motorcycles - 2000 w bad mileage

(Moderators: verslagen1, Dave, Serowbot)

‹ Previous topic | Next topic ›

Pages: 1 2

New to Motorcycles - 2000 w bad mileage (Read 341 times)

ohiomoto

Serious Thumper

Offline

SuzukiSavage.com
Rocks!

Posts: 2775

Re: New to Motorcycles - 2000 w bad mileage
Reply #15 - 07/17/17 at 06:19:01

Those jets are pretty standard. You might be able to lean out the main a size or two, but there is now way those jets are the problem.

Check for a poorly executed white spacer mod and check your float level. I'd also check that you have the stock needle for a 2000. Early needle had 3 slots for the circle clip allowing for adjustments. Your's should have one slot. Still, the needle alone shouldn't cause the sort of problem you have.

IP Logged

stewmills

Serious Thumper

Offline

Imagination is more
important than
knowledge

Posts: 2641
Auburn, AL
Gender: male

Re: New to Motorcycles - 2000 w bad mileage
Reply #16 - 07/17/17 at 06:37:35

FoXTaroT,

I am not sure that this will be a lot of help, but here is a recent post I had troubleshooting what ended up being a rich running and flooding (using excessive fuel) in the idle range. It ma at least open your mind up to some of the carb workings.

Also, in the post linked below, NOTE the link in my first post in the thread to the ruckus forum's carb thread. This is not our exact carb, but it is very similar and will help you understand what changes affect which throttle and running positions and you'll be better prepared for troubleshooting what may be going on with yours as you continue to try out and test different configurations.

EDIT: The photos that were in the ruckus thread are no longer there because of the photobucket bullshart going on. Sorry...They were excellent visuals. if I can find other good similar carb references I will repost here.
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1497301269

Good luck!

IP Logged

Gary_in_NJ

Serious Thumper

Offline

LS650 Cafe Racer

Posts: 2633
Amongst the Twisty Roads

Re: New to Motorcycles - 2000 w bad mileage
Reply #17 - 07/17/17 at 09:44:24

The pilot and the main are of the most interest. Those are not the stock jets, so some one took the time to get the jetting right.. hopefully they adjusted the needle height too. I would take the time to set the float height, it should be just above an inch. After a good cleaning and confirming that it's properly adjusted, put it back together and see. If there is an improvement.

A life-time student of motorcycling.
LS650 Cafe, DRZ400SM, FZ6N, SV650S, CB900C, Ducati ST2, CB550F-SS
My LS650=> http://suzukisavage.com/yabb2.2/Attachments/Left.JPG

IP Logged

batman

Serious Thumper

Offline

SuzukiSavage.com
Rocks!

Posts: 3806
osceola new york
Gender: male

Re: New to Motorcycles - 2000 w bad mileage
Reply #18 - 07/17/17 at 10:24:23

The stock main jet for the s-40 is a 145 followed by 147.5 ,150 ,152.5 155 .a 155 is way to large for a stock motor and killing your mileage,you need to tell us your location/elevation to suggest proper jetting ,but as it stands I'd advise using a main jet no larger than 150 . If you pull your sparkplug and it's covered in soot you'll know your running rich.

my old work mates called me MacGyver

IP Logged

ohiomoto

Serious Thumper

Offline

SuzukiSavage.com
Rocks!

Posts: 2775

Re: New to Motorcycles - 2000 w bad mileage
Reply #19 - 07/17/17 at 12:53:57

I believe the 52.5 is stock for pilot....

I got my 96 used. The guy I got if from had a 55 pilot, 155 main and a way too rich white spacer mod. The worst MPG I ever got was very low 40s. I went to a 50/150 combo and got mid 40s. I fixed the way too rich white spacer mod and bumped up to a 52.5 pilot and got 54 MPG out of my last tank. (My bike does have a Dyna exhaust but is stock otherwise.)

My point is that is seems far fetched that the OPs jetting is causing such an extreme drop in mileage. It's surly a contributing factor, but this thing must be dumping fuel like crazy to be doing so poorly.

IP Logged

batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: New to Motorcycles - 2000 w bad mileage Reply #20 - 07/17/17 at 20:45:09 Yes stock pilot jet is a 52.5 and should be good in most cases.you need to change the main jet (smaller) and you need to see what the PO did with the spacer.
Back to top	« Last Edit: 07/18/17 at 14:44:36 by batman » my old work mates called me MacGyver IP Logged

FoXTaroT YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 5	Re: New to Motorcycles - 2000 w bad mileage Reply #21 - 07/25/17 at 14:00:25 Sorry I'm slow on doing these things... No white washer. 1 small washer below circle clip. 3 small washers above.
Back to top	IMG_2783.jpg IP Logged

FoXTaroT YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 5	Re: New to Motorcycles - 2000 w bad mileage Reply #22 - 07/25/17 at 14:40:13 nt
Back to top	IMG_2784.jpg IP Logged

batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: New to Motorcycles - 2000 w bad mileage Reply #23 - 07/25/17 at 19:14:49 I lived on the other side of the "pond" Rochester ny and with a stock bike ,with Dyna muffler I run a 150 main ,I think your 155 is way two large and is killing your mileage .
Back to top	my old work mates called me MacGyver IP Logged

Pages: 1 2

‹ Previous topic | Next topic ›

« Home