ZX600c 1989 Stormtrooper Build - Page 2 - KawiForums - Kawasaki Motorcycle Forums
LinkBack Thread Tools Display Modes
post #11 of 17 (permalink) Old 04-06-2016, 01:38 AM Thread Starter
Jr. Member
Join Date: Feb 2014
Location: San Luis Obispo
Posts: 20
Well I figured out the timing issue, since I was putting a new used head on I hadn't backed off the nuts for the valve guides... Was just enough off to restrict it.

Loosened them all up and got it right first try! Adjusted the valve spacing then put the bike back together. Filled up all the fluids and started it up... started the third time on the starter but the idles way too high. Prolly at around 8000 RPM high.

Figure the issues somewhere in the carb since I just retted it. Will look into it more tomorrow.
thedaringmove is offline  
Sponsored Links
post #12 of 17 (permalink) Old 04-06-2016, 06:10 PM
Core Member
Jeff in Kentucky's Avatar
Join Date: Jun 2010
Posts: 6,000
Since you already rejetted for intake air changes, the jetting might still be close enough for exhaust changes- only 1 way to find out.

I would check the adjustment for the throttle cables first- both where they attach to the carbs and for the knob that turns by hand for the pull cable.

“Banking institutions have banished precious metals and substituted a more fluctuating and unsafe medium; they have withdrawn capital from useful improvements and employments to nourish idleness for the few, who prefer demoralizing pursuits to labors useful to the whole; the peace of the whole is endangered by evils more easily to be deplored than remedied." by Thomas Jefferson,1810 (edited)
Jeff in Kentucky is offline  
post #13 of 17 (permalink) Old 04-06-2016, 10:02 PM Thread Starter
Jr. Member
Join Date: Feb 2014
Location: San Luis Obispo
Posts: 20
Problems not with the throttle or cables. I can visually see the butterfly valves are closed. Got to be a massive vacuum leak. We're talking 8-10K rpm
thedaringmove is offline  
post #14 of 17 (permalink) Old 04-08-2016, 12:25 AM Thread Starter
Jr. Member
Join Date: Feb 2014
Location: San Luis Obispo
Posts: 20

Got the bike running pretty well tonight! Took it all back apart and put it back together. Have a hunch that it was the idle mixture screws but cant tell for sure. Hopefully this weekend ill find time to tune the Carbs. Got a few new leaks out of the transmission and forks though so seals are on their way.

After my riding course tonight I ordered the trailtech Vapor gauge system so now starts the fun stuff! Stay tuned!

Last edited by thedaringmove; 04-08-2016 at 12:58 AM.
thedaringmove is offline  
post #15 of 17 (permalink) Old 04-11-2016, 02:31 PM Thread Starter
Jr. Member
Join Date: Feb 2014
Location: San Luis Obispo
Posts: 20
So I finished my riding class yesterday! Waiting on certificate in the mail then I will go get my permit.

Tried to go on a ride with a few friends yesterday but engine started having major trouble. It felt like the power would drop and come back at random... My buddy thought it meant the carbs weren't jetted correctly but I was almost certain carbs weren't the issue since I had ridden it last week with no problems... Pulling plug wires and checked compression on cylinders... all cylinders over 150psi so no problem there. However, when I pulled the cylinder two spark plug I realized the old plug seal was attached to the plug along with the new. The old seal must have been in the head still when I installed plugs.

Slapped it all back together and hoped it would work. Didn't
Checked spark and realized cylinders 2&3 weren't sparking consistently. So checked pos/ground to the coil and found them pretty loose. Squeezed female ends with pliers and reinstalled: seems to be fixed!

Because of all the engine trouble I didn't have time to get to installing the headlights/gauges so hopefully I have time this week.

Here's how she sits now when I rode to school this morning:
thedaringmove is offline  
post #16 of 17 (permalink) Old 04-13-2016, 12:07 PM Thread Starter
Jr. Member
Join Date: Feb 2014
Location: San Luis Obispo
Posts: 20
Very bad news. Oil and water are mixing again. Even after I just did a head gasket and new head...

I'm stumped. I though the water pump looked pretty good so didn't think that could be the problem.
So, if it isn't the water pump what could it be? Wouldn't it have to be a hole in the block spilling coolant into the oil? How screwed am I
thedaringmove is offline  
post #17 of 17 (permalink) Old 04-17-2016, 05:12 AM
Jr. Member
metalpeddler88's Avatar
Join Date: Dec 2015
Location: Barrow County, GA
Posts: 40
On top of the motor, there are the two coolant connectors. I wonder if there is a crack around/inside that? Add some pressure to the coolant lines in the motor and see if the pressure drops. Or if you have the valve cover off, you may be able to visually inspect for coolant.
The other thing I would look at is the head bolts. Did you torque them down correctly in the right order? If not, it could be the gasket. One side of the head is tighter than the other.
It's just a thought, but I wish you luck! I've got a 1990 version, and in a similar situation. Just can't get it running right.

Last edited by metalpeddler88; 04-17-2016 at 06:18 PM.
metalpeddler88 is offline  
Sponsored Links

Quick Reply

Register Now

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

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


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

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

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

Posting Rules  
You may not 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