Wont start after cleaning carb

Started by davidblythe, Sep 24 2009 10:08 AM
18 replies to this topic

  • davidblythe

Posted 24 September 2009 - 10:08 AM

#1


My 2003 DRZ S has sat in the garage for the last 2 years unloved

decided to use it again and it started second kick on the aftermarket kickstart i added a few years ago

ordered a new battery in the meantime put it back to road trim from its greenlane set up

started fine on the battery and ran it around for a couple of days hoping to clear the jets fully with use and injector cleaner

but never really cleared so decided to strip the carb down, using an air compressor and carb cleaner (has a dynojet kit on it with the airbox mod)

the diaphragm looked fine

put it back together

and now it wont start, am at a loss, striped it down and rechecked

has the kickstart switch removed, has spark at plug

any ideas anyone

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  • William1

Posted 24 September 2009 - 10:14 AM

#2

I'll bet your pilot jet was nearly clogged before. The solvents disodged some gunk still there and now it is completely blocked. Buy a new pilot jet.

  • npm

Posted 24 September 2009 - 10:21 AM

#3

Silly question but did you remember to hook up the vacuum line to the petcock?

  • davidblythe

Posted 24 September 2009 - 10:34 AM

#4

npm said:

Silly question but did you remember to hook up the vacuum line to the petcock?

not a silly question at all, first thing i thought, but yes i did remember

  • DR.billZ

Posted 24 September 2009 - 10:59 AM

#5

Floats stuck?

Ask me why I ask ;)

  • davidblythe

Posted 24 September 2009 - 11:22 AM

#6

DR.billZ said:

Floats stuck?

Ask me why I ask ;)

always like to play wise to morecambe

why do you ask

  • davidblythe

Posted 25 September 2009 - 12:54 AM

#7

changed the pilot jet to a new 22.5 3.5 turns out on the idle screw

still wont start (occasionally back fire)

has pair, solenoid, clutch and side stand switchs removed

very healthy spark, cleaned all connections (getting desperate)

any more ideas

  • MutualBill

Posted 25 September 2009 - 05:51 AM

#8

Try a fresh plug...and never put additives in your fuel again.

  • mtnbiker1975

Posted 25 September 2009 - 07:10 AM

#9

Do you have the jets in the correct places?

  • davidblythe

Posted 25 September 2009 - 07:27 AM

#10

had a new plug in , stripped it down again and recleaned every passage within the carb , ie idle, choke and main circuits, took atomiser out, inspected diaphragm, put the old 25 pilot in, reassembled, used some intake cleaner as an easy start and it fired up fine

fires up first prod on the button now, guess some small blockage in the idle circuits as it exited the throttle body

thanks all for the assistance

tomorrow the MCCT modification, presume where the oil breathers exit into the trap before moving onto the airbox, these can be disposed off if i route directly into the airbox

  • craigs449

Posted 25 September 2009 - 08:25 AM

#11

glad to hear she's running right now....not sure what u are asking about the breather and mcct install, but the breather box has to be removed to put the mcct on.

  • davidblythe

Posted 25 September 2009 - 08:34 AM

#12

wamt to remove the breather box permanently and feed breather pipes into airbox

any reason why not to

  • ptgarcia

Posted 25 September 2009 - 08:40 AM

#13

You don't have to remove it completely, just unbolt it and push it aside.

  • ptgarcia

Posted 25 September 2009 - 08:41 AM

#14

davidblythe said:

wamt to remove the breather box permanently and feed breather pipes into airbox

any reason why not to



No gain from doing this, and those that have end up with oil everywhere. Just leave it alone.

  • MutualBill

Posted 25 September 2009 - 11:26 AM

#15

davidblythe said:

wamt to remove the breather box permanently and feed breather pipes into airbox

any reason why not to

If you like the idea of pumping oil into your airbox....I guess you could do it.
I sure would not recommend it.

  • davidblythe

Posted 25 September 2009 - 11:35 AM

#16

whats in the breather box that stops the oil fumes passing onto the airbox then

  • stephenclement

Posted 25 September 2009 - 12:22 PM

#17

davidblythe said:

whats in the breather box that stops the oil fumes passing onto the airbox then

walls and a return line to the cylinder.. I would'nt route it to the airbox. take the oil box off to install the MCCT or move it out of the way then when the MCCT is installed put it back in place. I should fit.

  • MutualBill

Posted 25 September 2009 - 12:32 PM

#18

davidblythe said:

whats in the breather box that stops the oil fumes passing onto the airbox then

An element to collect the mist and return it to liquid form, a chamber to collect it and return line to send it back into the motor. Only the pressure is relieved into the airbox.

  • davidblythe

Posted 25 September 2009 - 12:41 PM

#19

many thanks for the advice, will refit in the morning



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