Drz400 Thread

[threadkiller]

Originally Posted by buls4evr

Ok you guys so here it is. Raptor 660 petcock, Yamaha part # 5LP-24500-01-00 . It was about $26 when I bought mine. It fits on exactly like your Suzuki one internally and at mount holes. Cap off your vacuum line right on the carb itself with a cap that fits from your auto parts store and safety wire it on the carb.... no leaks!

If you are thinking each time ,you will shut it off at the tank and then you will NEVER hydraulic your engine overnight no matter WHAT your carb does. There is not that much gas just in your float bowl.

Or you can use a golf tee and zip tie. It's worked for me for two years.

*former KLR owner here...

[DR-Zamboni]

I agree with the above idea. Even though i needed to install new valves and basically do an entire top end rebuild after having my petcock leak and fill the case. i still like the vac operated petcock.

I think some people in here mis-understand the reason for using the raptor petcock. It is so you can shut the fuel off manually every time you stop the bike.

The stock petcock actually does shut off when its not running. Its done through a vacuum line from the carb that activates a diaphragm. This is nice for when you take a spill because the float in the carb stays open when a bike is on its side, and when the bike shuts off it will cut fuel flow so that you dont spill gas out the overflow.

The reason for the raptor petcock is to protect yourself from when multiple things happen:
-The diaphragm in the stock petcock gets worn and doesnt do its job
-the o-ring in the carb is old/cracked/flattened
-the overflow on the carb is clogged or not working.

Those 3 things go wrong and you hydro-lock. The raptor petcock is so you manually shut the fuel down instead of relying on the diaphragm, eliminating the first thing in the line of events. BUT Leave the raptor petcock in the on position and you basically just made it so 2 things need to fail instead of 3, a worse situation.

Sorry to write a book and take everyone to school, but i really want everyone to understand the reasoning behind the use of the raptor petcock so we can avoid the hydro-lock issue all together. Basically if you do the raptor petcock, remember to shut off your fuel every time you stop and park.

that being said... my set up is: Stock petcock, Inline fuel filter, Inline shutoff valve. The shutoff valve being my backup to the diaphragm in the petcock.

[Creeker747]

Originally Posted by DR-Zamboni

.

So, where did you pick this up?

[dasvis]

Originally Posted by DR-Zamboni

.

that being said... my set up is: Stock petcock, Inline fuel filter, Inline shutoff valve. The shutoff valve being my backup to the diaphragm in the petcock.

Filter & that shutoff valve... can you post a photo of your setup? There is not a lot of room there to mount both of those.

[DR-Zamboni]

I got both the fuel filter and shut off valve on ebay... total cost with shipping was $10 or less. I really like being able to cut the fuel without having to give up the vacuum operate petcock for when i drop the bike in the woods. Not to mention you can do this modification in 5 mins without any tools other than a pocket knife. Heres what mine looks like: had some blue gas line laying around that i cut up. The 90 degree shut off valve is a must, the only way to get it to fit without a loop in the line.

[ohgood]

Originally Posted by CatfishRacing

If you're flooding your cylinder with fuel your carb float is not shutting the fuel flow down properly.
Fixing your carb will help.
I never had that problem (with my DRZ's) but I bought the petcock from eBay that allows you to shut the fuel off so I wouldn't need to rebuild my carbs every year with the crap ethanol we get here.
I was on the highway for 3 exits with it off before it actually starved for fuel.
I shot the lock off my wallet and bought a Pingel for my "S" and another for my "SM".

Lmfao! "Shot the lock"



Wooooo that's too funnay at 4 am!

[Creeker747]

Originally Posted by DR-Zamboni

I got both the fuel filter and shut off valve on ebay... total cost with shipping was $10 or less.

Pretty interesting set up. Thanks for the pic, I didn't realize it was a 90 degree shut off valve. Makes sense.

[JaySee]

You can also find shutoffs in the lawn and garden section at Home Depot and Lowes. Usually comes with about 10" of fuel line.

[MotoBoss]

Originally Posted by JaySee

You can also find shutoffs in the lawn and garden section at Home Depot and Lowes. Usually comes with about 10" of fuel line.

also Advance Auto Parts....................

[wingam00]

I not 100% sure but think I remember reading where someone had their stock petcock leaked through the vacuum line from the stock petcock which filled the cylinder with fuel. The leaking petcock's fuel did go through the carb but through the vacuum line to the cylinder.

So an in-line shut off would not help in this example. I believe that this is rare buts has happen before.

[Wlfman]

Originally Posted by Bullwinkle58

I have spent some time on that forum. Those guys are nuts. They have strictly supermoto guys talked into running full coverage skid plates & bark busters.

Everything they & their parrots reccomend is absolutely mandatory for all drz's, otherwise your bike will blow up or fall apart.

I admit though, if you have a problem you can't figure out, there is someone over there who knows, and they'll blame your lack of manual cam chain tensioner, case savers, or radiator guards.

[The Recycled Teenager]

Originally Posted by 150ron

You see part number #18 in this chart

https://www.thumpertalk.com/shop/oem...007&model=5203

its that little o-ring that sits around the valve seat, i removed the valve seat and the o-ring was completely flat, took it with me to orielly auto parts and found one that looked the same, that fixed up the problem, but just to be safe, i now turn the fuel to the OFF postion when the bike is gonna be sitting for a few days or so.

Thanks
I will probably pick up a spare over the winter then

[The Recycled Teenager]

Originally Posted by ifixfords

Call me crazy, but I turn my fuel off every night. It can easily fill the cylinder overnight. Keep fuel out of the engine, check your oil and coolant on a regular basis. Your DRZ will last a very long time.

DRZ400E Tagged
KTM200XC-W ""

Well we could call you crazy if you want us too
But although I try to remember to turn mine of after riding, us old farts sometimes forget
So it can be an issue even if you think you are conscientious about that little old gas tap

[buls4evr]

Originally Posted by The Recycled Teenager

Well we could call you crazy if you want us too
But although I try to remember to turn mine of after riding us, old farts sometimes forget
So it can be an issue even if you think you are conscientious about that little old gas tap

Not remembering to shut the petcock off is just like forgetting your wife's birthday. Think of it that way... They both can cost you a lot of money. Treat this issue just like you did 2 stroke fuel taps in the 60/70s. If you make it a habit just like taking out the key it helps. I do the same thing when I start up the bike....habitturn it back ON. If you have a furnace in your garage you do not want gas on the floor under your bike. Friend of mine lost his garage ,tools, and 5 vintage Bultacos making that mistake one time.

[The Recycled Teenager]

Originally Posted by buls4evr

Not remembering to shut the petcock off is just like forgetting your wife's birthday. Think of it that way... They both can cost you a lot of money. Treat this issue just like you did 2 stroke fuel taps in the 60/70s. If you make it a habit just like taking out the key it helps. I do the same thing when I start up the bike....habitturn it back ON. If you have a furnace in your garage you do not want gas on the floor under your bike. Friend of mine lost his garage ,tools, and 5 vintage Bultacos making that mistake one time.

Ah but in the 60/70s I had a memory that worked
So maybe a sticker on the gas tank for us old farts EH!