2003 LTZ 400 wont start - Suzuki Z400 Forum : Z400 Forums
LinkBack Thread Tools
post #1 of 7 (permalink) Old 02-25-2012, 09:46 PM Thread Starter
:::Rookie Rider:::
Join Date: Feb 2012
Posts: 11
2003 LTZ 400 wont start

Hey guys so i just recently purchased a 2003 ltz400 quad i have only rode it twice, the first time i rode it everything was fine, then i took it out a second time and it was running fine till i stalled it in a water hole, then i started to hear a clicking noise in the motor.

So i checked the valve clearense replaced the cam chain tensioner and spark plug and now it wont start, i can get it to roll over but not fire and i hear a back firing noise, its like it wants to fire but wont. I was wondering if maybe the carb could be the reason or else i have no clue.

Also im kinda new at fixing quads im learning but may not know as much as you guys just letting you know, any help would be great. thanks
taylor8766 is offline  
Sponsored Links
post #2 of 7 (permalink) Old 02-26-2012, 12:32 AM
:::Official Spammer:::
zookie400's Avatar
Join Date: Aug 2007
Location: CT
Posts: 4,280
welcome to the forum. get yourself a suzuki service manual, it will help you.

was the airbox under water? if water went into the carb/engine, you might need to take some things apart to clean water out and change your oil.

check the cam timing, make sure the chain didnt skip teeth while you were changing the tensioner.

drain the fuel out of the carb bowl, make sure its fuel and not water.

if its popping you probably have spark, but you can still be sure its constant and not intermittent spark.

are there any mods to the quad?

My name is Aaron, and I am addicted to speed.
zookie400 is offline  
post #3 of 7 (permalink) Old 02-26-2012, 03:41 PM Thread Starter
:::Rookie Rider:::
Join Date: Feb 2012
Posts: 11
no there are no mods to it, im going to take apart the carb and clean it but like i said im a first timer when it comes to this, I do have the service manual it has helped alot. I really hope this is the problem
taylor8766 is offline  
post #4 of 7 (permalink) Old 03-19-2012, 07:16 PM Thread Starter
:::Rookie Rider:::
Join Date: Feb 2012
Posts: 11
so i just re did the cam timing and i set it to TDC but it doesnt line up like its supposed to in the book with the camshafts on the engine block so maybe it skipped teeth? how would i fix that? also im thinking of taking the whole thing apart the top head of the engine and cleaning it all out because it did have it under water a couple months ago. It still turning over but just wont ignite/fire its really ticking me off
taylor8766 is offline  
post #5 of 7 (permalink) Old 03-19-2012, 07:38 PM
:::Get a life! You're over 5000 posts:::

biggiej42's Avatar
Join Date: Jun 2006
Location: Southern NY
Posts: 5,882
Did you hydro lock it? You might have a bent rod/low compression if you did.

Jetting Database
Hard Start?
05' Z43412.5:1CP,Full Yosh TRC,FCR40,175/45,Rat Stack,Dyna Prgm,AMR Coil,KW Valves,536/540 Web,PWR Radiator,Raptor pc,Gunnar Kill,Elka S3 Front+Rear w/link,Roll+1 Stem,GPR Stabilizer,SL Hyd.Clutch,Tag T2,LSR+3 Arms,Burgard+1 Swinger,Quadtech Shrouds,Supersprox 14/40t,UM Air Box,YFZ Calipers,SS Lines,PA Bumper,Asv's,Roll Nerfs/Heels/Pegs,LSR Axcalibar,Douglas G2 B-locks/Razr's,YFZTail,TT Vapor+Dash,RickyStator,CV4s

biggiej42 is offline  
post #6 of 7 (permalink) Old 03-19-2012, 08:12 PM Thread Starter
:::Rookie Rider:::
Join Date: Feb 2012
Posts: 11
hydro lock it?
taylor8766 is offline  
post #7 of 7 (permalink) Old 03-19-2012, 11:45 PM
:::Z-250 Rider:::
gbk 1978's Avatar
Join Date: Sep 2011
Location: High Point N.C.
Posts: 478
what he means by hydro lock is that the cylinder filled with fluid in which in ur case is water! fluid doesnt compress like air buddy so either u get lucky and the engine motion stops with no damage or in some cases the fluid doesnt compress and the pressure is releived by the weakest link normally the ROD!
do urself a favor and drain the oil and pay attention if there is water in it! do this! then refill and try! repost

435 athena bbk
FCR 39mm 198main
adjustable fuel screw
Fuel Customs intake system
raptor petcock
Cams stage 2 hotcams
New stock valves(oops) oh well
DRZ-e kit
trail tech -16oz flywheel
Moose racing springs/ ltzdave's used clutches
port and polish
Airbox delete
Full yoshi offroad exhaust
13tooth front 42 aluminum rear
ITP wheels
front&rear DG bars
ALBA nerfs
Full skids
maxxis 4snows

NEED: +4 stroker crank +2 or+4 swinger
gbk 1978 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Suzuki Z400 Forum : Z400 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome