rev limiter? on 11 drz400

[jbotz]

just picked up a used 2011 drz400. runs good till 1/2 throttle after that it feels like a rev limiter kicks in. has anyone had this prolbem?

[npm]

Had it been sitting for awhile?  It's possible the main jet has some crud in it. 

[mickeydee]

Drain the carb and check for water in the fuel

[jbotz]

pick-up the bike from a dealer. I would think they would have check it out before i pick it up. will have to drop the carb bowl and see.

[1979ford]

pick-up the bike from a dealer. I would think they would have check it out before i pick it up. will have to drop the carb bowl and see.

if you just picked it up, i would take it back if possible

[ryansgotacbr]

pick-up the bike from a dealer. I would think they would have check it out before i pick it up. will have to drop the carb bowl and see.

Buying a used bike from a dealer just means youre paying a premium. They dont do squat but i would call them and try to get it fixed, if not it sounds like a problem with the carb being clogged

[jbotz]

this is my first jap bike. so was not sure if it has some sort of limiting on the engine. it only has 255 miles on bike.

[jbotz]

only way to get a bike again for me. Had to do the dealer to get a loan for the ride.

[ryansgotacbr]

only way to get a bike again for me. Had to do the dealer to get a loan for the ride.

Not busting you at all just telling it how it is unfortunately

[Ladyeclectic]

Are you blipping the throttle and hitting the limiter, or out riding? These bikes can rev pretty high but when they hit the limiter, they lose power almost immediately. Easiest fix is to shift at a lower RPM, even if you're only at a half throttle. Listen to the revs, not by how much throttle you're turning.

Now, if you're getting to half throttle and the power BOGS, loses power past a certain throttle point, that's a different story. Could be the stator, could be fuel/intake/carb related. The bike's from the dealership right? Take it back and make them fix it would be my advice, especially if you only just recently got it.

[jbotz]

5th gear I can get to 55 mph and then it feels like my old drag bike on the 2 step rev chip. will stop by the dealer after work tomorrow. I have never had a jap bike before. so not sure how they do things. just does not feel like a fuel problem. 

[Craigo]

5th gear I can get to 55 mph and then it feels like my old drag bike on the 2 step rev chip. will stop by the dealer after work tomorrow. I have never had a jap bike before. so not sure how they do things. just does not feel like a fuel problem. 

 

Whatever the issue, a newly purchased bike should perform better than what you have got atm

You would need to be running 11-58T gearing to hit the rev limiter at 55....Which I doubt..

Highly unheard of, but it could be a bad CDI if it's cutting out at the same rpm in every gear...

It's more likely to be fuel delivery related, as it's probably been sitting at the dealer's shop choking up on Corn Juice for a while..

Edited May 27, 2014 by Craigo 485sm

[Gsxrstuntdrz]

+1 carbs probably gummed up, just take it back to the dealer. It's their problem.

[mickeydee]

If you just brought this bike home from the dealer then take it back and let them fix it

[plankk]

Bike is 3yrs old and only has 200ish miles, Im betting the carb jets need a good cleaning from the long sitting.

[jbotz]

took bike back to dealer yesterday. they pulled the carb bowl off did not not say much. they wanted to keep the bike over night so they can fix the problem as they said. so they drove me home. will call me today they said when its done. we shall see how it goes.

[robb5]

Read the FAQ section and find a TT drz friend in your area who can walk you thru the proper care and feeding of your dizzer. Congrats on your new ride!

[slowriding]

The electronic rev limiter is 10,000 but on the stock bike the power curve is pretty flat after about 8000.  The trade off for the tons of tractable power and torque down low is a bit less up top.  The headpipe size gets the blame/credit for the lack of revs/more torque.

 

Still, some guys are riding California freeways at 80mph.  Unless the gearing has been radically changed for off-road it should not rev out at 55mph.

 

If the jetting is off either because of a plugged jet or someone putting in the wrong size, then once it gets completely onto the main the performance will suffer.  Too big is just as bad as too small.

 

Remember, stock this  bike is about 32hp.  A drag bike it is not.  It is fun, nimble, reliable, and fuel efficient.

[jbotz]

picked up the bike from the shop last night on the way home from work. they said the the needle was sticking in the carb. bike runs great now. headed down the road and into the desert. had a bast on the bike.   ?

[jbotz]

Now i will have to find out more on the cam chain adjuster mod.