Engine tapping noise - Club700XX - Honda TRX700XX Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 19 Old 07-28-2010, 10:12 PM Thread Starter
Junior Member
 
yota33's Avatar
 
Join Date: Jun 2010
Location: Lucedale,Mississippi
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Engine tapping noise

I went to look at a used 08 700xx today,and it had this loud tapping noise in the engine.It sounds like it's coming from somewhere around the piston.Is that a normal sound with these bikes?
I have a friend that has a 450r,and that thing makes lots of noise when its running.
Thanks for your help
yota33 is offline  
Sponsored Links
Advertisement
 
post #2 of 19 Old 07-28-2010, 11:02 PM
240
Senior Member
 
Join Date: May 2009
Posts: 268
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Not normal probably the valves.
240 is offline  
post #3 of 19 Old 07-29-2010, 04:49 AM
 
droby1242's Avatar
 
Join Date: Apr 2010
Location: Slidell LA
Posts: 561
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
these engines do make noise but without actually hearing it myself i wouldnt want to tell you its normal. how many hours are on the bike? also look under the quad for lots of gouges and rust. look at all the frame bolts for excessive corrosion. check the oil for metal flakes and water. If a lower octane fuel is used it will make more noise. also when you accelerate does it get louder and faster or does it go away?? is there any smoke? try to figure out if its coming from the top end or lower end. Also when in doubt go with your gut feeling.

Last edited by droby1242; 07-29-2010 at 04:56 AM.
droby1242 is offline  
 
post #4 of 19 Old 07-29-2010, 07:52 AM
Senior Member
 
Simplyorange's Avatar
 
Join Date: Dec 2009
Location: BR.Louisiana
Posts: 528
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
they make noise, i have went over my valves, timing chain and clutch yesterday ad its still loud and runs its balls off, its just normal timing chain slap, if you try to tighten it the noise changes but get worse, thats how i know its only the timing chain...you should be able to tell if its a rod knocking.plus i think the engine has a knock sensor. and +1 to the fuel, if you run a low octane in it it sounds about 60% worse, my little brother did it to mine and i found this out.

2008 TRX 700XX (Black/Charcoal)
13T,Stage 1 hotcam,11:1 CP piston,L8ton Sway bar,Orange Maier Plastics,21" razr 1 front,ITP Sandstars on 10" ITP T9 Pro Series,FMF powerbomb/powercore.EHS programmer next.

2007 GSXR 1000 (Orange/Black)
-1,+2 Driven Kit,K&N, Full Leovince stainless exhaust,PcIIIUSB/Dyno tune,Hyperpro Damper,ASV Levers,Woodcraft Engine covers,Woodcraft Clipons,Xenon HID,Carrozzeria Wheels,Galfer Rotors(gsxr.com 2010 bike of the year)
Simplyorange is offline  
post #5 of 19 Old 07-29-2010, 08:12 AM Thread Starter
Junior Member
 
yota33's Avatar
 
Join Date: Jun 2010
Location: Lucedale,Mississippi
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by droby1242 View Post
these engines do make noise but without actually hearing it myself i wouldnt want to tell you its normal. how many hours are on the bike? also look under the quad for lots of gouges and rust. look at all the frame bolts for excessive corrosion. check the oil for metal flakes and water. If a lower octane fuel is used it will make more noise. also when you accelerate does it get louder and faster or does it go away?? is there any smoke? try to figure out if its coming from the top end or lower end. Also when in doubt go with your gut feeling.

Im going back to check it out again today.I'll ask the owner if he has 87 octane gas in it or not.I does get faster and a little louder when you rev it up.
It dont smoke at all.
The tires are worn out,so it probably has lots of hours on it,but the bike still looks good
He said he just changed the oil in it,and that it didnt sound that loud before he changed it.
As loud as it is,it still dont sound as bad as the 450r my buddy has.I was told all the 450r's sound like they're about to come apart
I'll see if I can find one at a dealer that they can crank up and let me hear it run so I can compair the two.I'll know then if its just a normal sound or not

Last edited by yota33; 07-29-2010 at 08:43 AM.
yota33 is offline  
post #6 of 19 Old 07-29-2010, 08:16 AM Thread Starter
Junior Member
 
yota33's Avatar
 
Join Date: Jun 2010
Location: Lucedale,Mississippi
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
It sounds like it's coming from the top end to me.
Have any of you ever adjusted the valves on a 700xx?
yota33 is offline  
post #7 of 19 Old 07-29-2010, 08:25 AM Thread Starter
Junior Member
 
yota33's Avatar
 
Join Date: Jun 2010
Location: Lucedale,Mississippi
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I just went and looked at it again.That tapping is real loud,you can hear it the whole time your riding,that cant be normal.He said he put 93 octane gas in it.

Last edited by yota33; 07-29-2010 at 10:55 AM.
yota33 is offline  
post #8 of 19 Old 07-29-2010, 11:25 AM
Senior Member
 
Simplyorange's Avatar
 
Join Date: Dec 2009
Location: BR.Louisiana
Posts: 528
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
mine does it too, the valves are easy to adjust.

2008 TRX 700XX (Black/Charcoal)
13T,Stage 1 hotcam,11:1 CP piston,L8ton Sway bar,Orange Maier Plastics,21" razr 1 front,ITP Sandstars on 10" ITP T9 Pro Series,FMF powerbomb/powercore.EHS programmer next.

2007 GSXR 1000 (Orange/Black)
-1,+2 Driven Kit,K&N, Full Leovince stainless exhaust,PcIIIUSB/Dyno tune,Hyperpro Damper,ASV Levers,Woodcraft Engine covers,Woodcraft Clipons,Xenon HID,Carrozzeria Wheels,Galfer Rotors(gsxr.com 2010 bike of the year)
Simplyorange is offline  
post #9 of 19 Old 07-29-2010, 11:26 AM
Senior Member
 
Simplyorange's Avatar
 
Join Date: Dec 2009
Location: BR.Louisiana
Posts: 528
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
you can hear mine tapping when you ride it and it gets faster but i have checked everything and there is nothin mechanically wrong with my bike,it could be the kind of oil he pout in it.im going back with amsoil because mine was quieter with amsoil

2008 TRX 700XX (Black/Charcoal)
13T,Stage 1 hotcam,11:1 CP piston,L8ton Sway bar,Orange Maier Plastics,21" razr 1 front,ITP Sandstars on 10" ITP T9 Pro Series,FMF powerbomb/powercore.EHS programmer next.

2007 GSXR 1000 (Orange/Black)
-1,+2 Driven Kit,K&N, Full Leovince stainless exhaust,PcIIIUSB/Dyno tune,Hyperpro Damper,ASV Levers,Woodcraft Engine covers,Woodcraft Clipons,Xenon HID,Carrozzeria Wheels,Galfer Rotors(gsxr.com 2010 bike of the year)
Simplyorange is offline  
post #10 of 19 Old 07-29-2010, 12:02 PM Thread Starter
Junior Member
 
yota33's Avatar
 
Join Date: Jun 2010
Location: Lucedale,Mississippi
Posts: 20
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Im gonna see if I can find out how to adjust the valves in the service manual,ive never made any valve adjustments on anything.
He said he put Mobil 1 4T 10W40 in it.
I use that same oil in my CBR 1000rr,I like it
yota33 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Club700XX - Honda TRX700XX Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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

Password:


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

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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