ZX7RJOB

After about a 45 min ride the other day not hard average about 85 - 90 the whole way when I got back on local streets and stopped at a light in neutral and low revs the engine was knocking like crazy. I checked the oil resevoir it looked a little low nothing major. Could this be the problem? Havent had a chance to get to my mechanic cause he is closed over the weekends and Mondays. Any input would be greatly appreciated.

Lb3

if you spin a bearing your oil pressure will read low. Time for a new engine!

ZX7RJOB

Really ya think so its only got about 8,000 on it?

ZX7RJOB

The gauge reads fine I just checked the oil in the window by the case

NINJA ZX7R

Man that sucks.i know at 7700 miles on mine the cam bucket stuck open and i had a valve hit the piston and put a small nick in it.but when that happens it is a loud ticking noise. alot diffrent from a rod knocking. i got just
under 15000 miles on it now and still going strong.knock on wood. good luck at the shop and if you want another motor let me know i have a spare 97 with about 7000 miles on it that came out of a wrecked one.

Lb3

well if its knocking and its not anything stupid like something being loose then theres only one way to tell if its a rod... Do revlimiter burnouts until the tire pops.. if a rod shoots out of the block then it was toast anyways. get it on video too. :YEAH

DoodleF4i

my zx7r tinks and knocks a bit sometimes but nothing major..so i dunno get a manual and rebuild it

ZX7RJOB

Well Its Startin To Get A Little Cold Over Here Anyway So Maybe This Will Be Nice Project For The Winter....... But The Burnouts Do Sound Like A Great Idea.

420gixxer

pic of what your engine probably looks like


https://www.stuntlife.com/gallery/sh...cat/500/page/1


the aftermath if your a do it yourself kinda guy


https://www.stuntlife.com/gallery/sh...cat/500/page/1
that is my 750 engine 2000-gix

ZX7RJOB

If up to speed though it runs just normal only knocks in neutral and at low revs. wouldnt it knock all the time if it was something as serious as a rod or anything else to that effect. i wish i could get some good news.

Rolla1990

It might be your cam chain tensioner. I know that that's a common problem on a lot of Suzukis and older Hondas. The knock/tick comes and goes, but mostly happens after engine braking when you're slowing down. I say try replacing that first before you go and do anything crazy.

420gixxer

mine was doin all the same stuff bro,low rev know like crazy,get goin quites up a little,then all of the sudden ,CLUNK,and that was the rsult

Kyle_PBZ

If it is blown get a ZX9 motor, you can find them for about the same price and it's not too difficult of a swap.

-MXD-

thats what im thinking too. if its a rod, the faster you go the faster that thing is flying out the block. it happened to me last week

Jay6

I second that, escpecially if its not knocking under load. My F3 does it all the time

CBR up on one

That's got my vote :YEAH

DoodleF4i

yo about the zx9 motor i thought about doing that to my zx7r this winter but does anyone know if the motor and tranny from a zx9 will fit a zx7 cuz my tranny is pretty much ****ed up right now.plus how hard would it be to do myself?

Rolla1990

The motor and tranny should come as one piece, so when you get a motor, you'll get the tranny too. I don't know about the fitting and wiring tho... Good luck bro

Kyle_PBZ

I don't believe it's too hard of a swap. I know 3 out of 4 motor mounts line right up. I imagine the wiring should be pretty close to the same. A guy that used to live here did his and only ran the 3 engine bolts and never had any troubles.

ZX7RJOB

:YEAH Yeah Took It To Shop Yesterday Just To See A Perplexed Look On My Friends Face And Get A Good Shrug Of The Shoulders But They Will Take Dismantle It See What Happens. Zx-9 Engine Would Be Great A Idea Though It Wold Help With Getting The Fat *** Front End In The Air. :YEAH