ADVrider

Go Back   ADVrider > Bikes > Orange Crush
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-12-2012, 12:33 PM   #1
Qwik OP
Two Wheeled Addict
 
Joined: Apr 2008
Location: Sunnyvale, California
Oddometer: 5,809
New motor fires up, on one cylinder

trying to figure out why. put in different coil and plug to no effect. Front cylinder exhaust gets hot rear does not..any ideas?
__________________
Speed bumps never seem to make me go any faster
Qwik is offline   Reply With Quote
Old 10-12-2012, 01:46 PM   #2
NKL
Adventurer
 
Joined: Oct 2011
Location: Kent, England
Oddometer: 87
Fuel in carb?
NKL is offline   Reply With Quote
Old 10-12-2012, 02:45 PM   #3
TcRulz
Gnarly Adventurer
 
Joined: Dec 2010
Location: Home of all things fridgid - Bathurst.
Oddometer: 289
You could take the air cleaner cover off and pour a cap full of fuel in the rear carb throat and see if it fires on that or might be safer to pull the rear coil stick and stick another known good spark plug in it (making sure its earthed) and see if it sparks. Has to be fuel, spark or compression all working at the right time. Good luck.
TcRulz is offline   Reply With Quote
Old 10-12-2012, 03:20 PM   #4
NKL
Adventurer
 
Joined: Oct 2011
Location: Kent, England
Oddometer: 87
Just read the title again, what do you mean "new motor" and I assume nothing else has changed, carbs, electrics, ignition.
NKL is offline   Reply With Quote
Old 10-12-2012, 09:12 PM   #5
Qwik OP
Two Wheeled Addict
 
Joined: Apr 2008
Location: Sunnyvale, California
Oddometer: 5,809
Replacement motor. Original electrics that worked fine with the old motor. Old carbs as well. Gonna try dumpin fuel down the carb and see if that works
__________________
Speed bumps never seem to make me go any faster
Qwik is offline   Reply With Quote
Old 10-12-2012, 10:12 PM   #6
Head2Wind
MotorcycleMayhem
 
Head2Wind's Avatar
 
Joined: Mar 2006
Location: NorthWet Washington
Oddometer: 2,411
Did you check the valve clearances and/or verify that the cams are installed correctly? If the seller is considered trustworthy, then this shouldn't be a issue if they were selling a known good running engine. But generally a good idea to verify and establish a baseline of known settings.

Also, depending on how long the bike was apart for the engine transplant, the fuel may have fouled the jets or stuck the float. If there is no fuel in the float bowl, then the needle is stuck in the seat.
__________________
“The mind is sharper and keener in seclusion and uninterrupted solitude. --- Be alone, that is the secret of invention; be alone, that is when ideas are born.” - Nikola Tesla
2006 KTM 970 frankinADVsmSD
ADVmachines™ Proven Solutions for your Worldwide Adventures...www.ADVmachines.com
Head2Wind is offline   Reply With Quote
Old 10-12-2012, 10:36 PM   #7
bykpimp
Live and let ride
 
bykpimp's Avatar
 
Joined: Oct 2006
Location: Santa Cruz Ca
Oddometer: 1,408
Verify you have spark in both cylinders, if so move along to fuel, compression, oxygen.............
__________________
" I can't fix your motorcycle over the phone or internet" Spanky
bykpimp is offline   Reply With Quote
Old 10-13-2012, 11:16 AM   #8
NKL
Adventurer
 
Joined: Oct 2011
Location: Kent, England
Oddometer: 87
Quote:
Originally Posted by Head2Wind View Post
Did you check the valve clearances and/or verify that the cams are installed correctly? If the seller is considered trustworthy, then this shouldn't be a issue if they were selling a known good running engine. But generally a good idea to verify and establish a baseline of known settings.

Also, depending on how long the bike was apart for the engine transplant, the fuel may have fouled the jets or stuck the float. If there is no fuel in the float bowl, then the needle is stuck in the seat.
Took the words out of my mouth.
NKL is offline   Reply With Quote
Old 10-14-2012, 11:52 PM   #9
Qwik OP
Two Wheeled Addict
 
Joined: Apr 2008
Location: Sunnyvale, California
Oddometer: 5,809
Had a few minutes to mess with it today. Poured a little gas down the throat of the rear carb. Cranked it a bit and it coughed and fired on both cylinders. Gonna pull the carbs off and clean em up. Obviously some debris in the system that has it plugged up. It didnt sit long enough to gum up before I drained the Carbs.
__________________
Speed bumps never seem to make me go any faster
Qwik is offline   Reply With Quote
Old 10-15-2012, 02:38 AM   #10
Dustodust
Studly Adventurer
 
Dustodust's Avatar
 
Joined: Oct 2009
Location: Hillsboro Oregon
Oddometer: 752
it helps to run it with just the left tank on until you get it dialed , you can see what the carbs are doing and have access to them
__________________
04 KTM 950 S
04 KTM 525 EXC street plated
Dustodust is offline   Reply With Quote
Old 10-15-2012, 01:37 PM   #11
Qwik OP
Two Wheeled Addict
 
Joined: Apr 2008
Location: Sunnyvale, California
Oddometer: 5,809
Yup. Only have the left Safari tank on. New carb clamp came in today as well. ( old one stripped but its on the front carb with a different screw/nut making it work.
__________________
Speed bumps never seem to make me go any faster
Qwik is offline   Reply With Quote
Old 10-15-2012, 04:28 PM   #12
Narsisco Lopez
Addlepated
 
Narsisco Lopez's Avatar
 
Joined: Jul 2010
Location: Golden (Showers), Colorado
Oddometer: 2,178
Quote:
Originally Posted by Dustodust View Post
it helps to run it with just the left tank on until you get it dialed , you can see what the carbs are doing and have access to them
Quote:
Originally Posted by Qwik View Post
Yup. Only have the left Safari tank on. New carb clamp came in today as well. ( old one stripped but its on the front carb with a different screw/nut making it work.
Carb? What's a carb????

Oh! You mean those old-fashioned things my great-grandfather's Edsel used to have to shoot gas into the pistons!
__________________
FYYFF!
http://www.youtube.com/watch?v=NtpUv4VBDhA
Bikes
2012 BMW K13S | 2009 KTM 990 Adventure (SOLD!) | 2003 Suzuki DRZ400E
Narsisco Lopez is offline   Reply With Quote
Old 10-15-2012, 06:41 PM   #13
Qwik OP
Two Wheeled Addict
 
Joined: Apr 2008
Location: Sunnyvale, California
Oddometer: 5,809
Doesn't shoot gas it drizzles it
__________________
Speed bumps never seem to make me go any faster
Qwik is offline   Reply With Quote
Old 10-15-2012, 09:24 PM   #14
Qwik OP
Two Wheeled Addict
 
Joined: Apr 2008
Location: Sunnyvale, California
Oddometer: 5,809
Tossed some sea foam in the tank to see if it will clean the jets/carb up a bit. It's poppin a bit and doesn't want to run off choke.
__________________
Speed bumps never seem to make me go any faster
Qwik is offline   Reply With Quote
Old 10-16-2012, 03:19 AM   #15
TA-Zappa
Gnarly Adventurer
 
TA-Zappa's Avatar
 
Joined: Nov 2004
Location: Stockholm, Sweden
Oddometer: 160
Quote:
Originally Posted by Narsisco Lopez View Post
Carb? What's a carb????

Oh! You mean those old-fashioned things my great-grandfather's Edsel used to have to shoot gas into the pistons!
Exactly, the ones that doesn't give you whiplashes from normal use...



/Zappa
__________________
'05 950 Adv S - 71000km
'14 Beta RR 350 - 0h
'14 Beta RR 350 - 2h (Stolen)
'09 250 EXC-F SixDays - 184h (Stolen)
'98 XL600V Transalp - 86000km - SOLD
TA-Zappa is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not 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 On

Forum Jump


Times are GMT -7.   It's 03:27 PM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014