2005 400EX......engine noise - Honda TRX450R Forums: Honda TRX 450R Forum

nolabuckeye · 11-06-2008, 05:17 PM

Curious as to what it could be, engine starts right up, but there is a ticking noise in it.....what could it be and is it an easy fix? Thanks.

duke416ex · 11-07-2008, 01:33 PM

Stock motor? Year? Have you ever adjusted the valves?

nolabuckeye · 11-07-2008, 03:13 PM

2005 and it is a stock motor, only jetted. I have done nothing to the motor..

duke416ex · 11-07-2008, 03:47 PM

I don't know b/c I can't hear it, but I would say a good valve adjustment would cure it. If it has had the crap ran out of it a timing chain might not be a bad idea. Use one from an 02 crf450 and it is like a heavy duty chain for a 400.

flippincgfighter · 11-07-2008, 06:43 PM

Your 400 is fairly new. So i would put money on that its the valves and they need to be adjusted. This is a very easy process compared to the 450 motor.

All you have to do is remove the plastics and tank and there are four caps on the valve cover. Take these out, and you will see rocker arms with holder nuts and little flat head screwdriver bolts.

Watch till the ex is all the way compressed to set the intake and vice versa.

Stick your feeler gauge in and adjust.

With a few more hours it will tick from the rocker arms being worn out.

Also a oil change can take away the ticking if its old oil.

-Kip

KEVIN_TRX450ER · 01-27-2009, 06:28 AM

like kip said .... pry the valves...

this is foolish question and not intended to insult n e 1, but have you checked the oil to see if u have oil in it ???? it might be u are extremely low on oil....

but adjusting the valves would pry be a good idea...

scuzz · 01-27-2009, 09:26 AM

Quote:

like kip said .... pry the valves...

this is foolish question and not intended to insult n e 1, but have you checked the oil to see if u have oil in it ???? it might be u are extremely low on oil....

but adjusting the valves would pry be a good idea...[/b]

Yeah, it's a common valve tap with the 400's, you just need to adjust the valves.

11-07-2008, 01:33 PM	#2 (permalink)
duke416ex 400EX Rider Join Date: Aug 2005 Location: Morgantown, KY Posts: 1,397	Stock motor? Year? Have you ever adjusted the valves? __________________ 04 450r, Elkas Elites lt front & rear, SMC arms & stem, ac propegs, Acerbis guards, prm bumper skids and grab bar, Precision stabilizer, Hipers, Maxxis, Rossier, Hinson basket, Rekluse Pro, HCII cam, Venom piston, DID, AFAM, Flexx bars, Boyesen Shokouts, Tireballs, IMS, Maier , OMI clamp, Up Dog, 02 Suzuki GSXR 750, 1000 header, Jardine slip on and some other stuff 06 Sponsors: C & P Racing(Morgantown, KY)

11-07-2008, 03:47 PM	#4 (permalink)
duke416ex 400EX Rider Join Date: Aug 2005 Location: Morgantown, KY Posts: 1,397	I don't know b/c I can't hear it, but I would say a good valve adjustment would cure it. If it has had the crap ran out of it a timing chain might not be a bad idea. Use one from an 02 crf450 and it is like a heavy duty chain for a 400. __________________ 04 450r, Elkas Elites lt front & rear, SMC arms & stem, ac propegs, Acerbis guards, prm bumper skids and grab bar, Precision stabilizer, Hipers, Maxxis, Rossier, Hinson basket, Rekluse Pro, HCII cam, Venom piston, DID, AFAM, Flexx bars, Boyesen Shokouts, Tireballs, IMS, Maier , OMI clamp, Up Dog, 02 Suzuki GSXR 750, 1000 header, Jardine slip on and some other stuff 06 Sponsors: C & P Racing(Morgantown, KY)

11-07-2008, 06:43 PM	#5 (permalink)
flippincgfighter 450R Veteran Join Date: Jan 2007 Location: Silverton, Oregon Posts: 3,793	Your 400 is fairly new. So i would put money on that its the valves and they need to be adjusted. This is a very easy process compared to the 450 motor. All you have to do is remove the plastics and tank and there are four caps on the valve cover. Take these out, and you will see rocker arms with holder nuts and little flat head screwdriver bolts. Watch till the ex is all the way compressed to set the intake and vice versa. Stick your feeler gauge in and adjust. With a few more hours it will tick from the rocker arms being worn out. Also a oil change can take away the ticking if its old oil. -Kip __________________ 05 Drag Bike

01-27-2009, 06:28 AM	#6 (permalink)
KEVIN_TRX450ER 400EX Rider Join Date: Jul 2008 Location: UPSTATE NY Posts: 1,093	like kip said .... pry the valves... this is foolish question and not intended to insult n e 1, but have you checked the oil to see if u have oil in it ???? it might be u are extremely low on oil.... but adjusting the valves would pry be a good idea... __________________ 2007 HONDA TRX450R Dasa Classic Exhaust Dasa Intake Kit Curtis Sparks Jet Kit HRC Lid Green Wire Mod HC2 plus some other stuff Myspace Page

11-06-2008, 05:17 PM	#1 (permalink)
nolabuckeye 250EX Rider Join Date: Sep 2008 Posts: 155	Curious as to what it could be, engine starts right up, but there is a ticking noise in it.....what could it be and is it an easy fix? Thanks.

Remove Advertisements Sponsored Links
TRX450R.org Advertisement

11-07-2008, 03:13 PM	#3 (permalink)
nolabuckeye 250EX Rider Join Date: Sep 2008 Posts: 155	2005 and it is a stock motor, only jetted. I have done nothing to the motor..