Honda vfr800 1979 FI in yellow

Adrian Heys

Registered User
#1
Hi Folks I purchased Honda vfr800 1979 FI in yellow 2 years ago and have done a few fixes to it, regulator, battery, tyres usual stuff.
I have a problem when going over pot holes or humps as the fairing or front end seems to rattle as if my fairing bolts were loose.
Ive checked the bolts, plastic fittings on the front end, removed fairing and put it back together after changing the oil. Give the bike a test run and it still does this.
The bike is a mint 20 k genuine bike looks as new but this rattle concerns me when im riding, Its only audible if i hit a pothole or a hump. Couls it be that i need to change the fork oil? How long does fork oil last. I cant find a single part that is loose. Makes no sense. The bike has no issues when breaking or at speed or cornering just the ruts in the road. I have a CBF 1000 and that is much quieter front end. Any help would be appreciated. IMG_2661.JPG IMG_2661.JPG IMG_2661.JPG
 

50th VFR

Registered User
Site Sponsor
#3
Nice bike.
The bike (assume typo) will be coming up for 20 years old and is most likely running original fork oil.
If no issues under braking that rules out head bearings or linked brakes.
So try some fork oil first.
 

Adrian Heys

Registered User
#4
thanx Pete yes 1999. The bike flies through mots. I'm going to change pads this year. When the bike is standing still and I push on the forks no sounds at all from the front end forks. I have thought of doing fork oil. I checked everything under the seat as well nothing loose. It baffles me. It is a very nice example for the year.
 

Tamthebam

I dont get out much
#5
Lovely bike. Yellow ones alway make me go weak at the knees.

*Ahem* anyway, don't restrict your search to the front of the bike, vibrations will be travelling through the frame and it could be something further back. Try hitting the tyre, Just the tyre mind you, with a rubber hammer to simulate vibration of hitting a road defect. A second pair of ears to listen are helpful too.

Definatley get the fork oil done. Mine came out like sludge :eek:
 

Adrian Heys

Registered User
#6
Thanx for the advice i will try the tyre hit thingy.
I found under the seat a small plastic cover loose which goes over some electrics and put some new plastic fittings in, i secured the tools with the rubber strapand it improved a tad. Im going to try emptying the back box next see if its the stuff in there rattling a little.
Thanx for the advice most helpful
Ade
 

Pete/48

Registered User
Site Sponsor
#7
If you have a centre stand fitted, check that when the stand is in the raised position that it is making contact with the rubber stop buffer and not against something metallic, --- i-e Is the rubber buffer still there in place on the stand, and further more if it is does it align with the small bracket on the exhaust,
 
#11
from a different bike i know, but i had an annoying rattle on my zx9r. spent ages working through all the possibilities...
in the end it was a loose headlight reflector wobbling around on its mounting. wedged some foam in there, and job done!!
 
#12
I finally solved some of the rattle issues on the front end vfr. I checked the stand rubber ok, I then looked under the seat and checked every plastic clip. All seemed fine. The noise was defo front end. So I checked all bolts and plastic clips and under the front fairing above the wheel I found 2 clips missing . So put new ones in and it really has improved a lot. Speed humps no more rattling. Thanx for all the advice much appreciated. I'm sure this is my start to other issues with her. Ade
 
#14
first 3 times when I rode her away from home she broke down and had to be towed home, battery, regulator the cooked new battery so bought a second one and then stator issues. Nearly sold her but now fixed she is awesome. Managed tour of lakes on her everything ok . Well see. Scotland next me thinks.
 

PAD

Registered User
Site Sponsor
#15
You’ve sorted out the most frequent major issue. The other common ‘ailments’ are more easily and cheaply dealt with - thermostats need replacing commonly, which is a throttle bodies off job (not difficult, but tedious and you absolutely MUST note, colour code/ number the various connections in wires and pipes and photograph to record their routing to ensure full and correct reassembly). Regular maintenance and use is good! And you certainly have a good resource in this forum for help in all areas from repairs and maintenance to mods, tweaks and more extensive upgrades.
 

Adrian Heys

Registered User
#16
thanx pad. I hope fingers crossed nothing else fails for a while. Only 20k on her . I don't look FWD ever to taking throttle bodies off or doing injectors etc I'm not mechanical could do with knowing people who can do this stuff without the garrage big bills around the Burnley area. Thanks again for re assurances
 

redvfr

Registered User
Site Sponsor
#18
I finally solved some of the rattle issues on the front end vfr. I checked the stand rubber ok, I then looked under the seat and checked every plastic clip. All seemed fine. The noise was defo front end. So I checked all bolts and plastic clips and under the front fairing above the wheel I found 2 clips missing . So put new ones in and it really has improved a lot. Speed humps no more rattling. Thanx for all the advice much appreciated. I'm sure this is my start to other issues with her. Ade
Just about to replace the screws/clips on my '98 FiW too. Odd one gone, and can get annoyingly noisy off (increasingy rare) smoothish road surfaces. Got the full set from this place £18.43 delivered, so hopefully will get rid of those bumps & squeaks on "normal" roads.
 

Attachments

Adrian Heys

Registered User
#19
thanx red vfr I've managed to buy some plastic clips to replace the broken ones, a few of my screws are looking tarnished now so this could be a good buy to replace everything. Thanks for the link
 
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