New to the zxr400 family

One for you newbies to introduce yourselves and show us your ZXR!

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suupi
Posts: 2
Joined: Sun May 13, 2018 6:48 pm
My Bike: zxr400 L9

New to the zxr400 family

Post by suupi » Sun May 13, 2018 9:40 pm

Greetings!

My name is Matias and i'm from Finland. I recently bought 1999 zxr400. The bike has 80k on the clock, it smokes black on +10k rpm and the timing chain needs to be replaced.
Black smoke could be from bad valve timing right? I'm going to take the bike apart soon, so what are the most important things i should check while replacing the cam chain?
Also to note, the bike has no maintenance history at all if you do not count the last chain/sprocket/oil chance which was marked to the bike's manual. Guys at the bike shop just said that the earlier owner had done all the maintenance by himself. I tried to contact him couple of times but got no answer.
I have checked the cam chain tensioner, and it is protruded to max.

But honestly from the looks of it, i can not believe that it has done 80k.

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banner001
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Posts: 2266
Joined: Sat Sep 24, 2011 3:27 pm
My Bike: ZXR400 L4
Location: Nuneaton

Re: New to the zxr400 family

Post by banner001 » Sun May 13, 2018 11:45 pm

looks very tidy, i agree, 80k kms seems a lot for such a clean bike.

things to do:
air filter
strip and clean carbs
new plugs
check HT leads and coils
check the reg/rec, alternator and wiring loom
check/replace battery
replace cam chain
do valve clearances and check wear of rockers
oil change
coolant flush and new coolant

i would also check over the disks, change new pads if necessary
drain and fill brakes with new fluid
check suspension front and rear
check chain and sprockets
tyre age and condition

setup the bike for your riding position
UK ZXR 400 L4
UK ZXR 400 L3 track bike
1989 FZR 1000 EXUP-R streetfighter

suupi
Posts: 2
Joined: Sun May 13, 2018 6:48 pm
My Bike: zxr400 L9

Re: New to the zxr400 family

Post by suupi » Mon May 14, 2018 9:16 am

Thanks a lot!
Going to take it apart in couple of weeks when I can get my hands on the new cam chain.
I have already checked the suspension, chain&sprockets, discs&pads, air filter, battery and parts of the wiring.
Wirings are a bit shady in the rear indicators and light. Fork seals seem pristine and pads&discs seem to be in great condition.
Rear suspension seems to be the original one so that probably needs to be replaced.
It annoys me so much that people do not document their bike maintenance..

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banner001
Track day God
Track day God
Posts: 2266
Joined: Sat Sep 24, 2011 3:27 pm
My Bike: ZXR400 L4
Location: Nuneaton

Re: New to the zxr400 family

Post by banner001 » Mon May 14, 2018 2:17 pm

Sounds promising, if you want to do the rear properly, and the bike will thank you for it, make sure to fully strip the bushings from the tri-arm, and from the dog bones, as well as removing the swingarm and replacing all the bearings in there, as well as changing the shock out...
UK ZXR 400 L4
UK ZXR 400 L3 track bike
1989 FZR 1000 EXUP-R streetfighter

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