Float drain screw

maleko89

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• Jun 21, 2007

• #1

The screw is in the same location for all four carbs.

Mark
#1098

 

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shawn kloker

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• Jun 21, 2007

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Mark,Where are the manifold covers that I gave you?

 

maleko89

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• Jun 21, 2007

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Shawn, those aren't my carbs. I got the pic from Doug Daltons website. I still have the covers you gave me.

Mark
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shawn kloker

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• Jun 21, 2007

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Alright ,you had me worried.They aren't on in your garage pic either.

 

maleko89

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• Jun 21, 2007

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Yeah, that garage pick was from when I first got my Mark's exhaust. That was a couple of months before Thunder '06. Don't worry, I don't throw **** away I get from friends.

Mark

 

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113s&s

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• Oct 26, 2007

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speaking of bowl drain screws...does anyone just drain the gas out of the carb for winter storage...on other bikes id shut the petcox and let the carb run out of gas

 

maleko89

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• Oct 26, 2007

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Leave them full. Otherwise, o-rings gaskets dry out and will cause problems in the spring.

Mark
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113s&s

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• Oct 26, 2007

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just looked in manual :ummm:..said long term two months or so drain carb..prevents fuel deposits from building up...maked sence since gas in the bowel evaperates and does not come in contact with gaskets or o rings....maybe thats why everyone is cleaning the **** out of there carbs with the shot gun method...just a though

 

maleko89

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• Oct 26, 2007

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I put Seafoam or stabilizer in my carbs over winter.

Fuel is in contact with o-rings and part of gasket
surface.

2-3 months isn't really long term. Yamaha considers long term 6 months or more.

Mark
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113s&s

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• Oct 27, 2007

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is there a way to pull the fuse or wire to the fuel pump and have the motor run,, to run out the gas in the carbs..just a thought.....

 

maleko89

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• Oct 27, 2007

• #11

Yeah, there's a 2-pin connector to the fuel pump. It sits just behind and below the air box. You may be able to see it without removing the seat and/or air box.

Mark
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113s&s

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• Oct 27, 2007

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maleko89 said:

Yeah, there's a 2-pin connector to the fuel pump. It sits just behind and below the air box. You may be able to see it without removing the seat and/or air box.

Mark
#1098

Click to expand...

thanks for that info

 

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serrow

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• Nov 11, 2007

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tried draining my carbs for the first time today but nothing would come out till i "forced" a suction. any idea why it didnt gush out like all you say it does?

 

maleko89

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• Nov 11, 2007

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Dirt/debris could've been blocking it. How did the fuel look coming out? Clear? Maybe the float bowl vent was blocked? All four carbs had trouble draining? Strange indeed. The drain nipples might have been plugged....those holes are pretty small.

Mark
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FastV4

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• Jan 16, 2008

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I always drain the float bowls. I just make sure the fuel has a good dose of Stabil in it first. There is bound to be a slight bit of fuel left in the carbs even draining them.

I have never had a problem with this method. In fact, this year I was late in draining the bowls (about 1 month after it was stored with stabil in it) and noticed the fuel had discolored to a darker color than usual.

I then ran it for a few minutes and checked the fuel color after again draining carb bowls. It was WAY lighter color (same fuel in tank).

I believe even with Stabil it will break down to some degree.

Carbs will stay dry (empty) as long as you don't turn the key on recycling the fuel pump.


John Worcester:thumbs up:
'02 Carbon Fiber V-Max

 

LeeMax

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• Jan 31, 2016

• #16

I've got an issue. When I drain my bowls for 6 mo storage I now get nothing draining from left side bowl and my fuel pump seems to go on all the time while riding, prob filling left bowl as necessary. Any ideas?

 

maleko89

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• Jan 31, 2016

• #17

First guess is that bowl is empty or the drain tube/outlet is plugged. The float may be stuck closed so a light tap with a hammer on the back of the carb may jar it loose. Taking that carb apart for an inspection would be next.

 

blaxmax

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• Jan 31, 2016

• #18

Touch that side of the head to see if it's the same temp as the others and probably needing a cleaning.
I took off my stock pump and it is up for sale if you need one.
Good working condition.

 

Beau254

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• May 23, 2021

• #19

FastV4 said:

I always drain the float bowls. I just make sure the fuel has a good dose of Stabil in it first. There is bound to be a slight bit of fuel left in the carbs even draining them.

I have never had a problem with this method. In fact, this year I was late in draining the bowls (about 1 month after it was stored with stabil in it) and noticed the fuel had discolored to a darker color than usual.

I then ran it for a few minutes and checked the fuel color after again draining carb bowls. It was WAY lighter color (same fuel in tank).

I believe even with Stabil it will break down to some degree.

Carbs will stay dry (empty) as long as you don't turn the key on recycling the fuel pump.


John Worcester:thumbs up:
'02 Carbon Fiber V-Max

Click to expand...

Where are the carb bowl drain screws located? I heard they were hard to get to? Or does draining the float screw do the same effect?

 

Last edited: May 23, 2021

maleko89

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• May 24, 2021

• #20

Beau254 said:

Where are the carb bowl drain screws located? I heard they were hard to get to? Or does draining the float screw do the same effect?

Click to expand...

Check the first post and accompanying picture in this thread. They are very easy to get to and will drain the float bowl fuel through the small side tubes which are also in that pic.

Cheers.

Mark