Gas in oil and puking

My Cb450P.. some idiot left the petcock.. " ON ".... and gas filled the bottom end... so.. the idiot put a pan under the bike.. then the idiot removed the drain plug.. only to discover the added weight of the gas blew the drain plug from the idiots hand and.... holly f'n Hannan... we got the Exxon Valdez in the idiot's drive way... %^$$#*(7^ ... Grrrrrr... but the idiot did discover... after five rolls of paper towels... removed the mess.. the stain... a hard brushing with water and Blue Dial .... then half a box of kitty litter... brushed in... allowed to dry overnight.. then sweep up... Dang.. drive way was pristine... sometimes.. idiots learn the hard way...
 
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The petcock appears to be leaking because the paint under and around it is deteriorating.

Hey @Mailman think he should scrape paint from the petcock area? :lmao:

Hmmmm.....maybe :laugh2:

http://www.xs650.com/threads/xs2-gas-tank-saving-my-paint-job-from-gas-incursion.55825/
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My Cb450P.. some idiot left the petcock.. " ON ".... and gas filled the bottom end... so.. the idiot put a pan under the bike.. then the idiot removed the drain plug.. only to discover the added weight of the gas blew the drain plug from the idiots hand and.... holly f'n Hannan... we got the Exxon Valdez in the idiot's drive way... %^$$#*(7^ ... Grrrrrr... but the idiot did discover... after five rolls of paper towels... removed the mess.. the stain... a hard brushing with water and Blue Dial .... then half a box of kitty litter... brushed in... allowed to dry overnight.. then sweep up... Dang.. drive way was pristine... sometimes.. idiots learn the hard way...

This the same Guy

Oil Change instructions for Women:
1) Pull up to Jiffy Lube or Wal Mart when the mileage reaches 3000 miles since the last oil change. There is a sticker on the windshield that says when to do this.
2) Drink a cup of coffee
3) 15 minutes later, write a check and leave with a properly maintained vehicle.
Money spent:
Oil Change: $20.00
Coffee:$1.00
Total:$21.00

Oil Change instructions for Men:
1) Wait until Saturday, drive to auto parts store and buy a case of oil, filter, kitty litter, hand cleaner and a scented tree, write a check for $50.00.
2) Stop by 7/11 and buy a case of beer, write a check for $20, drive home.
3) Open a beer and drink it.
4) Spend 30 minutes looking for jack stands.
5) Find jack stands under kid's pedal car.
6) In frustration, open another beer and drink it.
7) Place drain pan under engine.
8) Look for 9/16 wrench.
9) Give up and use crescent wrench.
10) Unscrew drain plug.
11) Drop drain plug in pan of hot oil: splash hot oil on you in process. Cuss.
12) Crawl out from under car to wipe hot oil off of face and arms.Throw kitty litter on spilled oil.
13) Have another beer while watching oil drain.
14) Spend 30 minutes looking for oil filter wrench.
15) Give up; crawl under car and hammer a screwdriver through oil filter and twist off.
16) Crawl out from under car with dripping oil filter splashing oil everywhere from holes. Cleverly hide old oil filter among trash in trash can toavoid environmental penalties. Drink a beer.
17) Install new oil filter making sure to apply a thin coat of oil to gasket surface.
18) Dump first quart of fresh oil into engine.
19) Remember drain plug from step 11.
20) Hurry to find drain plug in drain pan.
21) Drink beer.
22) Discover that first quart of fresh oil is now on the floor. Throw kitty litter on oil spill
23) Get drain plug back in with only a minor spill. Drink beer.
24) Crawl under car getting kitty litter into eyes. Wipe eyes with oily rag used to clean drain plug. Slip with stupid crescent wrench tightening drain plug and bang knuckles on frame removing any excess skin between knuckles and frame.
25) Begin cussing fit.
26) Throw stupid crescent wrench.
27) Cuss for additional 5 minutes because wrench hit bowling trophy.
28) Beer.
29) Clean up hands and bandage as required to stop blood flow.
30) Beer.
31) Dump in five fresh quarts of oil.
32) Beer. 33) Lower car from jack stands.
34) Move car back to apply more kitty litter to fresh oil spilled during any missed steps.
35) Beer.
36) Test drive car.
37) Get pulled over: arrested for driving under the influence.
38) Car gets impounded.
39) Call loving wife, make bail.
40) 12 hours later, get car from impound yard.

Money spent:
Parts: $50.00
DUI:$2500.00
Impound fee:$75.00
Bail:$1500.00
Beer:$20.00
2-Year, DUI Insurance: $8,000.00
Total:$12,145.00
But you know the job was done right
 
Well they were vacuum at one point in their life.
I'm gonna say it.
You are going to have a bit of winnowing sorting to do on this one. She's a looker but as is often the case, high maintenance comes along for the ride.
Couple things point at corner cutting.
Those petcocks not hooked to vacuum
fake pod filters gotta go LOL.
No fuel hose clamps.
I'd want to open those carbs and check what brass, jets are in them.
I'm not too fond of those plastic fuel filters.
Hope I'm not popping any bubbles, cuz it looks pretty cool.

Got it cleaned up and the oil changed. Definitely seems fine as long as I don’t use the reserve.
Got some petcock rebuild kits on the way, got some fuel line and filters also on the way. What air filters would you recommend adding to replace these?
 
I've found there to be very little room for even the small cone type in line fuel filters with BS38 equipped XS's
If your intake petcock screens are in good shape, well that should worked fine.
 

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I've had several plastic filters deform pretty badly and at least one crack, leak.
Gravity fuel flow is VERY low pressure, each filter adds resistance to flow.
I keep this pic to remind me how much resistance a filter can have.
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I know it’s been a while, but I’m at it again so I figure I’d follow up and seek some more advice on my latest discovery.
I took your advice and ditched the air filters and fuel line. I flushed out the tank and made sure to not put myself in a position to have to use the reserve on the petcock again until I address that. I have been riding trouble free ever since, so I figured I’d address the petcock next time I’m working on it, or when I am forced to. I’m tearing more stuff apart now to address some other issues, including a bad rear wheel bearing, and decided to go ahead and pull the tank. This is what I discovered. I’m no expert, but this doesn’t seem right to me. I’m assuming the screws are where the vacuum ports have been deleted at some point? Also two different petcocks. Am I right to assume that’s not how Yamaha made them?
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These screws have been put in to block the vacuum port, the screws on the bottom are just as built drain ports. Sometime open the petcocks to see what else has been done. As long as you have an on and off position they should be OK for now. XJWMX had an epoxy "Fix" to get rid of the vacuum function.
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These screws have been put in to block the vacuum port, the screws on the bottom are just as built drain ports. Sometime open the petcocks to see what else has been done. As long as you have an on and off position they should be OK for now. XJWMX had an epoxy "Fix" to get rid of the vacuum function.
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I don’t have an off position. Just run, reserve and prime. I think maybe I’ll just swap them out for some manual ones.
 
Some have removed the tab on the trim ring and shortened the handle a bit allowing it to point up, creating an "off" position.

Oh, parts bin engineering, some years have different series petcocks left and right side.
 
Some have removed the tab on the trim ring and shortened the handle a bit allowing it to point up, creating an "off" position.

Oh, parts bin engineering, some years have different series petcocks left and right side.
This bike is a bit of a Frankenstein, so not much would surprise me.
 
To be clear YAMAHA mixed and matched petcocks from a couple different bikes on 78-79 tanks, then had to add spacers so the handles cleared the tank seam. :doh: :laugh: :shrug:
 
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