Internal Cleaning - Oil Change / '79 KZ650SR

rjd4949 · 10-28-2008

Got my carbs dialed in (rebuilt them after a good cleaning including ultra-sound). Bike is purring. Still much more work to do - before now, hasn't been running for at least 10 yrs. I was thinking that I should change the oil with an inexpensive, but high quality oil (and maybe a cleaning additive), let that run thru for awhile (about 1/2 hour at hi-idle), then drain that off before putting in the Kawasaki brand 20-50 and the new filter. That way, any crud that doesn't drain off with the original oil, may come out on the first run-thru.

God idea? bad idea? Induce clutch slippage, maybe?

Your thoughts?

rstnick · 10-28-2008

Sea foam is made to do just that.

StarGate · 10-28-2008

I used Seafoam and ran it about 100 miles with it in then, changed oil/filter.

Alizard · 10-28-2008

Seafoam is very good. You should be aware that after 10 years your oil pan (and everybody else's) will have a sludge layer in the bottom that is pretty much there to stay until you take the pan off and scrub it. Gravity always drops the particles down and forms a sludge layer on the pan that running and flushing can't get rid of. Never took an oil pan off that didn't have some.

MFolks · 10-28-2008

If you plan on running at a fast idle for 1/2 hour a very good idea is to get a large fan and keep it on the fastest speed it has. You need a cooling air flow to prevent overheating/seizing of the engine.

rjd4949 · 10-29-2008

Picked up the Seafoam tonight. Good advice on the oil pan. Didn't occur to me, but makes sense. I'll pull that and clean it.
Thanks, gang

W-P Bill · 10-29-2008

+1 for Sea Foam.

RichLockyer · 10-29-2008

+1... SeaFoam and Castrol GTX.
Won't have any clutch issues with the Castrol.

10-28-2008	#1 (permalink)
rjd4949 California 79SR Join Date: Sep 2008 Location: Bay Area Posts: 6	Internal Cleaning - Oil Change / '79 KZ650SR Got my carbs dialed in (rebuilt them after a good cleaning including ultra-sound). Bike is purring. Still much more work to do - before now, hasn't been running for at least 10 yrs. I was thinking that I should change the oil with an inexpensive, but high quality oil (and maybe a cleaning additive), let that run thru for awhile (about 1/2 hour at hi-idle), then drain that off before putting in the Kawasaki brand 20-50 and the new filter. That way, any crud that doesn't drain off with the original oil, may come out on the first run-thru. God idea? bad idea? Induce clutch slippage, maybe? Your thoughts?

10-28-2008	#2 (permalink)
rstnick Can't find time to ride BTK Expert Join Date: Dec 2005 Location: Ontario, Canada Posts: 594	Sea foam is made to do just that. __________________ Vid pics http://www.kz650.info/

10-28-2008	#3 (permalink)
StarGate Navy Vet Search & Rescue BTK Expert Join Date: Apr 2007 Location: NE Arkansas Posts: 6,126	I used Seafoam and ran it about 100 miles with it in then, changed oil/filter. __________________ Mike Original Owner 1981 KZ1000-K1 LTD 2000 Suzuki King Quad Refurbish Photos

10-28-2008	#5 (permalink)
MFolks Needs A Real Job BTK Expert Join Date: Jul 2008 Location: Springfield Mo Posts: 3,509	If you plan on running at a fast idle for 1/2 hour a very good idea is to get a large fan and keep it on the fastest speed it has. You need a cooling air flow to prevent overheating/seizing of the engine. __________________ Mike Folks

10-29-2008	#7 (permalink)
W-P Bill Crazed Zed-head BTK Expert Join Date: Jan 2007 Location: near SeaTac airport, WA Posts: 1,720	+1 for Sea Foam. __________________ You can only be young once, but you can be immature forever!

10-28-2008	#4 (permalink)
Alizard The Cruising Gunsmith BTK Expert Join Date: Oct 2006 Location: California Posts: 1,455	Seafoam is very good. You should be aware that after 10 years your oil pan (and everybody else's) will have a sludge layer in the bottom that is pretty much there to stay until you take the pan off and scrub it. Gravity always drops the particles down and forms a sludge layer on the pan that running and flushing can't get rid of. Never took an oil pan off that didn't have some.

10-29-2008	#6 (permalink)
rjd4949 California 79SR Join Date: Sep 2008 Location: Bay Area Posts: 6	Picked up the Seafoam tonight. Good advice on the oil pan. Didn't occur to me, but makes sense. I'll pull that and clean it. Thanks, gang

10-29-2008	#8 (permalink)
RichLockyer Patriot Guardian Extreme Forum Supporter Join Date: May 2006 Location: Chino, CA Posts: 28,016	+1... SeaFoam and Castrol GTX. Won't have any clutch issues with the Castrol. __________________ - Rich 2006 1600 Ultra-Classic Patriot Guard Rider *Please put your bike year/model in your sig line or fill in your profile before asking for help.*

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