Maintenance & Technical > KX500 Original

Nitrous and things that go bang in the night!

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mdw471:
I gotta get to the jobsite, but also found this....

http://www.exhaustgas.com/docserver/Docs/260.pdf

This is the system you use Don46, right? Lots of good info.

Mark

don46:

--- Quote from: mdw471 on February 18, 2008, 12:51:41 AM ---
Don46....the Boondock system says they pressurize the carb and force the float to allow more fuel, the nitrous.info site talks about a fuel pump along with the nitrous....is that the difference between a wet and dry system?

Thanks

Mark

--- End quote ---

There is a bleed system that regulates the pressure in the carb bowl, you can push so muych fuel that the bike will load up and not run.  I use a manometer to adjust the float bowl pressure, at about 3-4" of water pressure.

The wet system requires a fuel pump to add fuel during nitrous use. the dry system uses a RC 9.6 v battery to activate the solenoid. You can get up to 25hp with the boondocker system down to 5hp depending on which nozzle you use. I use the 15hp nozzle, and a 12 oz bottle will last about 45 sec. Probably it isn't used for more than 20-30 sec at a time. I modified my throttle to accept a micro switch, so when the throttle is at about 25% it comes on and stays on till the throttle is released. I don't think you'd have enough gas to chase somebody across the desert a couple of short blasts and you'd be empty. Of course the + side, when your not on the bottle you can ride your bike like normal with no ill effects. Check that, I'm not sure, but I think the nitrous actually generates enough heat that it causes the plating to flake around the exhaust port. Now that could just be coincidental, but the plating was gone off a realtively new cylinder. I now use a sleeved cylinder for the nitrous bike.


Don

k5abuser:
i know on cars if the nos is tuned right you can run a lot of nos and not hurt the motor . 50,000 to 100,000 miles . have seen some cars run faster after 50,000 miles  with nothing done to to the motor after lots and lotsss of nos run though it . a two stroke should not be any diff. but it would have to be done right .

mdw471:


There is a bleed system that regulates the pressure in the carb bowl, you can push so muych fuel that the bike will load up and not run.  I use a manometer to adjust the float bowl pressure, at about 3-4" of water pressure.

The wet system requires a fuel pump to add fuel during nitrous use. the dry system uses a RC 9.6 v battery to activate the solenoid. You can get up to 25hp with the boondocker system down to 5hp depending on which nozzle you use. I use the 15hp nozzle, and a 12 oz bottle will last about 45 sec. Probably it isn't used for more than 20-30 sec at a time. I modified my throttle to accept a micro switch, so when the throttle is at about 25% it comes on and stays on till the throttle is released. I don't think you'd have enough gas to chase somebody across the desert a couple of short blasts and you'd be empty. Of course the + side, when your not on the bottle you can ride your bike like normal with no ill effects. Check that, I'm not sure, but I think the nitrous actually generates enough heat that it causes the plating to flake around the exhaust port. Now that could just be coincidental, but the plating was gone off a realtively new cylinder. I now use a sleeved cylinder for the nitrous bike.


Don
[/quote]

Thanks a lot Don

Lots of great info.

Where are you located...out west somewhere??

Mark

don46:
I'm located in Montana. 

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