Road Star Clinic Forum
Welcome, Guest
Please Login or Register.    Lost Password?
Re:Going Pumpless. (1 viewing) (1) Guest
Go to bottom Post Reply Favoured: 0
TOPIC: Re:Going Pumpless.
#142990
sailrider (User)
Fresh Boarder
Posts: 63
graphgraph
User Offline Click here to see the profile of this user
Going Pumpless. 1 Month ago  
Since I have everything apart and the Fuel pump off( and I like what it looks like that way , Im thinking of doing the Small Carb mod to the Needle valve seat suggested in the Tech articles . Have any of you removed your fuel pump and just let gravity cake care of it . Noticed my friends old Shovel head Custom is pumpless and it runs like a scared rabbit .
Sailrider
 
Logged Logged  
  The administrator has disabled public write access.
#143000
ultrastar (User)
Keep The Speedometer Side Up
Senior Boarder
Posts: 307
graphgraph
User Online Now Click here to see the profile of this user
Gender: Male Location: San Jose CA Birthdate: 1952-11-11
Re:Going Pumpless. 1 Month ago  
I don’t believe the bowl on the stock carb is large enough to hold the fuel that the bike needs to run at its best. You would have to go with a Mikuni 42 mm I did and love it
 
Logged Logged  
 
  The administrator has disabled public write access.
#143003
bmatpt (User)
Junior Boarder
Posts: 153
graphgraph
User Offline Click here to see the profile of this user
Gender: Male bmatpt@msn.com Location: Rockwall, TX Birthdate: 1965-03-19
Re:Going Pumpless. 1 Month ago  
I did just like the tech article states and put in the float needle. It was very easy to do and the bike runs as good as ever. I also vented the fuel cap at the same time. I wished I would have known that one a couple years ago, before I walked out and found my tank imploded.
 
Logged Logged  
 
Riding and Jeeping is always better than the alternative




  The administrator has disabled public write access.
#143022
greyphart (User)
bad idea+ experience = good judgement
Platinum Boarder
Posts: 1099
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Options doun2othrs@hotmail.com Location: Appleton, Wisconsin Birthdate: 1950-09-00
Re:Going Pumpless. 1 Month ago  
Pumpless with the cap vented. No problems. Have the stock carb setup (non-ported, stock jets, etc.) though. Runs just fine.

Greyphart
 
Logged Logged  
 
  The administrator has disabled public write access.
#143036
Questcap (User)
Expert Boarder
Posts: 484
graphgraph
User Online Now Click here to see the profile of this user
Re:Going Pumpless. 1 Month ago  
I only removed the pump... didn't vent the tank, didn't modify or replaced the needle valve... nuthin'!

Oh, I did cut the main fuel feed of the petcock by 1/2", and everything runs and works just fine.

If I were a high-speed highway runner, or did a lot of WOT riding, I'd probably spring for the bigger needle valve, but since I tried running without that addition first, and experienced no fuel shortage... I'm good to go, sans pump.

Oh, and today it hit 58 and sunny here, so I was out... saw a few other riders as well. I was not alone.
 
Logged Logged  
 
Sig pic deleted - larger than 450 pixels and 50 kb
  The administrator has disabled public write access.
#143039
Makcap (User)
Junior Boarder
Posts: 117
graphgraph
User Offline Click here to see the profile of this user
Gender: Male makcap33 Location: massillon ohio
Re:Going Pumpless. 1 Month ago  
I did the swap it works great and one less thing to go wrong.
 
Logged Logged  
 
  The administrator has disabled public write access.
#143041
Cougar (User)
Platinum Boarder
Posts: 2821
graphgraph
User Online Now Click here to see the profile of this user
Gender: Male Location: Gainesville ,Ga Birthdate: 1956-00-00
Re:Going Pumpless. 1 Month ago  
sailrider wrote:
Since I have everything apart and the Fuel pump off( and I like what it looks like that way , Im thinking of doing the Small Carb mod to the Needle valve seat suggested in the Tech articles . Have any of you removed your fuel pump and just let gravity cake care of it . Noticed my friends old Shovel head Custom is pumpless and it runs like a scared rabbit .
Sailrider


IMO you do not have to go to a 42 carb to go pumpless .Run a search for pumpless and there are many threads that will help you.I run pumpless with a stock carb....Coug
 
Logged Logged  
 
Last Edit: 2008/12/01 17:54 By Cougar.
 
  The administrator has disabled public write access.
#143160
Lakecharles (User)
Jeremiah 29:11 and Semper Fi!
Expert Boarder
Posts: 490
graphgraph
User Offline Click here to see the profile of this user
Gender: Male Birthdate: 1951-00-00
Re:Going Pumpless. 1 Month ago  
Will doing this totally cut out the possibility for carb puking? If it will, I am in for it next spring as the first priority after getting my motorcycle out of hibernation.
 
Logged Logged  
 
  The administrator has disabled public write access.
#143161
Flashback (Moderator)
The devil to pay, and no pitch hot
Moderator
Posts: 4576
graphgraph
User Online Now Click here to see the profile of this user
Gender: Male Location: Tennessee
Re:Going Pumpless. 1 Month ago  
Most likely.......... unless you actually have a problem with the needle valve itself..
 
Logged Logged  
 
  The administrator has disabled public write access.
#143162
sailrider (User)
Fresh Boarder
Posts: 63
graphgraph
User Offline Click here to see the profile of this user
Re:Going Pumpless. 1 Month ago  
I Guess I have my answers , Thanks all . Anyone know if there is a Chrome Fuel filter available anywhere.....And where have you all hidden yours as I cant see them in your sg pics .
sailrider
 
Logged Logged  
  The administrator has disabled public write access.
Go to top Post Reply
Powered by FireBoardget the latest posts directly to your desktop
...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... -->
New Forum Posts
2 posts, last by:
Frank_W
11 posts, last by:
Frank_W
15 posts, last by:
Frank_W
26 posts, last by:
noxqsays
29 posts, last by:
chico
8 posts, last by:
2005Roadstar
5 posts, last by:
Rayjay
15 posts, last by:
Questcap
13 posts, last by:
slezy
95 posts, last by:
slezy
111 posts, last by:
Darn Oldie
22 posts, last by:
IMTopGun1
5 posts, last by:
Crusierbob
9 posts, last by:
Mark7
20 posts, last by:
Flashback
4 posts, last by:
Cougar
5 posts, last by:
Questcap
29 posts, last by:
Frank_W
22 posts, last by:
youngblod
12 posts, last by:
youngblod
24 posts, last by:
Jade68454
21 posts, last by:
deanjenn
26 posts, last by:
deanjenn
2 posts, last by:
Greysnake
2 posts, last by:
fireman922
11 posts, last by:
Chaplain Charlie
27 posts, last by:
chico
6 posts, last by:
Darn Oldie
10 posts, last by:
gyrene11


The Road Star Clinic is a collaborative community of riders who archive and publish user contributed technical data about Yamaha Road Star motorcycles.

We also sponsor the creation and support of other community websites similar to our own. Inquiries about availability of a website for your community can be submitted to us via any "Contact Us" option on the Clinic.

Copyright 2003-2007 Road Star Clinic and its respective authors. Road Star Clinic is sponsored by the folks at MLSHomeQuest.com.