Idles but when reved bogs and dies.

This is a discussion on Idles but when reved bogs and dies. within the Engine/EFI/Drivetrain forums, part of the Can-Am DS450 Tech Discussion category; I just put my bike back together. Ported head and cams. I started it up this morning and it started fine. I let it idle ...


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Old 06-16-2012, 01:34 PM
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Idles but when reved bogs and dies.

I just put my bike back together. Ported head and cams. I started it up this morning and it started fine. I let it idle for a few min then tryed hitting the gas. It bogged and died. I have the pink wire done and am thinking it needs a new tune. Does that sound right? it idles fine just cant rev it thanks.
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Old 06-16-2012, 01:36 PM
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just gave it another shot. Revved it a little bit and it backfires. any answers.
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Old 06-16-2012, 02:29 PM
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problem is fixed. The two little wires that go screw into the engine down by the sprocket were backwards runs fine now.
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Old 06-16-2012, 04:13 PM
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Got it all back together. Rode it around the yard, when u hit the gas it pops a little when reving back down. Doesn't that mean it's running lean. I'm going to do pc5 with auto tune. Does that sound good? Or am I way off
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Old 06-16-2012, 07:07 PM
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It sounds like you're on the right track. Check your plugs and see how lean you're running after a plug chop. May give piece of mind.

Some popping is normal due to the exhaust.
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Old 06-16-2012, 07:22 PM
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Idk what els the problem could be. I don't think that could be an engine problem right?has to be something fuel related. Right?
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Old 06-16-2012, 09:58 PM
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Do you have the PCv or a FMI on it now?
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Old 06-16-2012, 10:27 PM
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Nope just pink wire cut.
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Old 06-16-2012, 11:08 PM
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Quote: Originally Posted by DS19 View Post
Idk what els the problem could be. I don't think that could be an engine problem right?has to be something fuel related. Right?
Possibly running lean. Depends on how bad the popping is. With free flowing exhaust some popping is normal. Think glass packs on a v8 compared to a muffler.

Like I said earlier do a plug chop. Check the plugs tan is good white is too lean. New set of pugs and 10 minutes.
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08 ds 450
Motworks SR4 G2
BCS Intake w/ KN airfilter
Pink Wire Mod
BCS Basket
Epic a arms w/ kyb remote ressi shocks
XMX rear shock
XMX stem and bars

Sig worthy quotes:
I know I'm going to Hell.

Now it's just a matter of go big or go home.
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