Contact Overland Solutions for all your custom modifications and setup for overland travel.               Discover the extraordinary with Compass Expeditions.

Go Back   The HUBB > Technical, Bike forums > Honda Tech

Honda Tech Honda Tech Forum - For Questions specific and of interest to Honda riders only. Questions comparing which bike is best etc go in the "Which Bike" forum.
With more than 58 destinations worldwide, Edelweiss Bike Travel is Number 1 in guided motorcycle tours!
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 28 Jul 2006
mecha's Avatar
Registered Users
New on the HUBB
 
Join Date: Jul 2006
Location: potugal
Posts: 1
Dominator norma sound ??

hi to everyone..
i´m from portugal and as such i apoligyse for my weird english.
i've bought a '89 domie but i think that the sound of working motor it's not ok. when she is at a regular rotation (4 or 5 rpm) i listen to a sound similar to metal hiting and if i left her working in neutral she starts to lose rotation until she stops working. also when i reduce a shift she do something like this pof.pof pa, pof. . in the winter it's very, but very difuclt to make her start. can any kind soul give me an advice ??

i hope to be worth of your help.
Reply With Quote
  #2  
Old 30 Jul 2006
Registered Users
Veteran HUBBer
 
Join Date: Jul 2006
Location: the Netherlands
Posts: 123
when you hear a metal rattle coming out of the cilinderhead, you first adjust the valves, then you need to find the source of the rattle. it could be a lose valve-seat or a worne out auto-decompresion-cam or a worne out central came-shaft bearing.
ofcourse it could olso be the cam-shaft-chain or cam-shaft-chain-tensioner.
these things are the things i know may give a metal
sound out of the nx650 engine

the pof sound coming out of the exhaust means the fuel mixture is lean (litle fuel compared to air) you could adjust it by richening (more fuel compared to air) the mixture, there is a screw at the front of the carburetor (bottom) witch you could twist counter clockwise.

i hope this will help you, i drive a '88 domie
__________________
I’m not afraid to go fast, it’s the crash and burn part that sucks.
Reply With Quote
  #3  
Old 30 Jul 2006
Contributing Member
Veteran HUBBer
 
Join Date: Jun 2005
Location: cardigan,wales
Posts: 248
Beat is right on his advise but there may be other,simpler things to look for first.The carburetor to cylinderhead rubber mounting may be split(usually underneath where you can't see it) and is a quite common problem for the Dommie.Also the camchain and tensioner(as Beat said)will probably be a little worn at around 60,000km and if you are going to change one,best to change all as it's not a simple job.You'll need the special tool to re-fit the camchain tensioner(maybe borrow from a Honda mechanic???).I tried without before and it's practically impossible! But this will not cause it to be hard to start when cold....that DOES sound like the carb-cylinder head mounting.
__________________
Just going for a short ride on my bike....
Reply With Quote
  #4  
Old 30 Jul 2006
Contributing Member
Veteran HUBBer
 
Join Date: Oct 2002
Location: montana usa
Posts: 505
Domie with a problem

I second the motion on seeing if the cam chain is worn. When I repair one in the shop I work at I always replace the chain, followers and tensioner. I also use a spoke to wind up the tensioner when putting the pieces back together. As far as the noise on decel and the lack of idle. Try turning the idle mixture screw all the way in lightly till it stops. If the idleing doesn't change any from having it screwed out about 2-4 turns then it is time to look at the carb boot or plugged up jets or air passages in the carb.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 
Thread Tools
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Tinkling sound on acceleration getalexfr Kawasaki 10 21 Jun 2006 03:31
Horrible tapping sound!!! chuk84 Yamaha Tech 4 19 Jun 2006 06:17
ticking sound in 650 dominator haydn. Honda Tech 5 2 Jun 2006 22:08
Sound diary Tonyabc Equipment Reviews 4 16 Sep 2004 05:12
QUESTION: Whistling sound on KLR650... and OFFER: spare part Timido Kawasaki 1 1 Jan 2003 05:47


All times are GMT +1. The time now is 05:15.