Black Spew...
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Black Spew...
With the new RB head, I seem to be getting a lot more spew, black crap out the back of the tail pipe.
Running 40:1 "smokeless" premix.
Any solutions to this??
Thanks
Running 40:1 "smokeless" premix.
Any solutions to this??
Thanks
- scheckaet
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a little is somewhat normal. Is your silencer cleaned? did you rejet after getting the head from rb? do a plug shop test to verify your jetting.
Note: don't jet by the amount of spoo you get / don't get, I only mentioned it because it might be part of the issue. the only way to jet right is to do a plug shop test, Inda has a great tutorial in the jetting section.
Note: don't jet by the amount of spoo you get / don't get, I only mentioned it because it might be part of the issue. the only way to jet right is to do a plug shop test, Inda has a great tutorial in the jetting section.
02 KX 200 hybrid: RB head and carb
Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
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...."a lot more spew..."
With more efficient combustion due to the RBD head mod you may just be heating up the goop that had accumlated over time and you are now pushing it out the exhaust tip. I agree with check out the jetting and replace the packing (if you have a non-OEM silencer). More efficient combustion should lead overal to less spew - but of course you need to be jetted somewhat close to get the correct burn rate and the maximium power out of the engine.
With more efficient combustion due to the RBD head mod you may just be heating up the goop that had accumlated over time and you are now pushing it out the exhaust tip. I agree with check out the jetting and replace the packing (if you have a non-OEM silencer). More efficient combustion should lead overal to less spew - but of course you need to be jetted somewhat close to get the correct burn rate and the maximium power out of the engine.
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KDX 200 Mark's
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WR430 Husky - mine
- Indawoods
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Yup... heating up the old spoo in the pipe and it will be nasty for a while.... mine is starting to calm down but for a while it was an insane amount.
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****'95 KDX 200/****
"People ate cows a thousand years ago for the same reason we eat them now. Cause they are easy to catch.We're not savages,we're just lazy. A cheetah could taste like chocolate heroin. But will never know. Those bastards are fast!!! "
****'95 KDX 200/****
"People ate cows a thousand years ago for the same reason we eat them now. Cause they are easy to catch.We're not savages,we're just lazy. A cheetah could taste like chocolate heroin. But will never know. Those bastards are fast!!! "
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- Indawoods
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Gas/air mix is what determines rich or lean... less oil only makes the mix richer.
*** Administrator //***
****'95 KDX 200/****
"People ate cows a thousand years ago for the same reason we eat them now. Cause they are easy to catch.We're not savages,we're just lazy. A cheetah could taste like chocolate heroin. But will never know. Those bastards are fast!!! "
****'95 KDX 200/****
"People ate cows a thousand years ago for the same reason we eat them now. Cause they are easy to catch.We're not savages,we're just lazy. A cheetah could taste like chocolate heroin. But will never know. Those bastards are fast!!! "
- fuzzy
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