oil lines

djfisher22 · Post by **djfisher22** » Fri May 01, 2009 5:02 pm

Found two of the oil lines on the front of my buffalo replacement motor broken.I have some hard line I got with an H2 deal that seems to be the right size.Any ideas for clamping them to the spouts?I'm almost convinced I can heat the line a bit and jam it on and it'll be fine but I'd sure feel better with some sort of clamp.TIA

Post by **oldjapanesebikes** » Fri May 01, 2009 6:48 pm

Just for clarity - when you refer to these lines being 'on the front' - you don't mean on the exhaust outlet side do you ? You are referring to the lines coming from the oil pump and going into the rear of the barrels under the carbs ?

H2RICK · Post by **H2RICK** » Fri May 01, 2009 8:48 pm

Maybe the SRIS lines ???
If so, they use those nifty little spring tension almost-full-circle clamps.....

djfisher22 · Post by **djfisher22** » Fri May 01, 2009 9:12 pm

oldjapanesebikes wrote:Just for clarity - when you refer to these lines being 'on the front' - you don't mean on the exhaust outlet side do you ? You are referring to the lines coming from the oil pump and going into the rear of the barrels under the carbs ?

Nope,front of the motor.They go to the cylinder under the exaust.Now that I know the name SRIS I searched a bit.Just a sort of return line?I'd rather have em working (or at least be there)since the bike will be a stocker.I have 2 spare motors to get replacements from,is there an easy way to save the line and reinstall?

Post by **oldjapanesebikes** » Fri May 01, 2009 10:00 pm

OK - the SRIS lines are still available from your friendly neighbourhood Suzuki dealer under new part number 09352-20503-600. Dillon Brothers charge $3.40 (US) each. I normally replace them when doing an overhaul but that's just me. I also pull the SRIS valves and check to make sure that the check valves are working and that the filters are not plugged.

rngdng · Post by **rngdng** » Sat May 02, 2009 8:44 am

DJ, the SRIS is what Kawasaki was copying when they put the check valves on the front of the triples crankcases. It routs the excess oil from the case of one cylinder, to the intake (or transfer) of another to clean up the oil. If the SRIS valves are messed up or the filters are bad, I take the valves out, and plug all the holes. The filters are nearly impossible to get, and the valves can come apart without the filters.

The SRIS isn't really that effective anyway IMO.

Lane

djfisher22 · Post by **djfisher22** » Sat May 02, 2009 10:56 am

My replacement motor is also a 72 J model.From what I've gathered the SRIS valves are screwed in the later motors but not the early one?The valve is 7mm hex but it doesn't seem to back out when I turn it.I think I'm just going to clean this extra motor up nice,new SRIS lines and pop it in to run the bike this summer,New head gasket and polish all the side covers and install. Then I'll rebuild the locked up original motor over next winter.I guess the next tips I'll be looking for will be cylinder removal and who to send the crank to for rebuild.

I did get baffles and cones and gaskets for the pipes.The color is growing on me and I can't wait to ride this brontosaurus.Thanks fellers!

Post by **oldjapanesebikes** » Sat May 02, 2009 12:16 pm

djfisher22 wrote:From what I've gathered the SRIS valves are screwed in the later motors but not the early one?The valve is 7mm hex but it doesn't seem to back out when I turn it.

Correct - H2RICK did a write up that talks a bit about this - its on the second page here
.

djfisher22 wrote:I guess the next tips I'll be looking for will be cylinder removal and who to send the crank to for rebuild. !

Getting the barrels off can be (usually is) a real pain - a couple of the guys on this board have made pullers, so depending on where you are located you may be able to borrow one. There is also a service bulletin (GT-25) with a Suzuki solution here. So far I've been able to get them to come free after several weeks of lots of penetrating oil, and some judicious use

of a soft faced mallet.

For crankshaft rebuilds I'm sure someone on the board will chime in with some suggestions - if you are in the US, then this place seems to get recommended by a few folks.

Post by **Suzsmokeyallan** » Sun May 03, 2009 1:53 pm

The 72 valves are turned and pulled,then they come out since its only a tapered fitting.
Use a spanner to turn them a few times then use a needle nose vise grips to turn and pull once they have been initially loosened.
I'm not a SRIS fan simply because its more pain than what its worth. So ill drill and tap my 72s for some drain plugs.

rngdng · Post by **rngdng** » Sun May 03, 2009 7:57 pm

Bill Bune does a good job on the cranks.

I'd take the SRIS fittings out, and drill the holes for an 8mm tap. Then plug them with 8mm set screws. That's what I did on BlueBoy. It works great, and still smokes way less than any Kawasaki..

Lane

djfisher22 · Post by **djfisher22** » Sun May 03, 2009 9:08 pm

Do those fittings on the cylinder pull out without a big deal?I'm thinking plugging it up might be a good idea.

rngdng · Post by **rngdng** » Mon May 04, 2009 3:27 am

The fittings on the cylinders are locktited in, so I heated the area with a propane torch and they came out easily.

Lane

tz375 · Post by **tz375** » Mon May 04, 2009 2:07 pm

Lane is far more subtle than I.

I just grabbed them with Vise grips, a twist and pull and they pull right out of the barrels.