Looking to eliminate the SRIS on a 72 triple in a way that allows me to reinstate the SRIS at some point down the road.
What's typically done?
SRIS line elimination
Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan
- jabcb
- Moto GP
- Posts: 4311
- Joined: Mon Dec 13, 2010 4:32 pm
- Country: USA
- Suzuki 2-Strokes: 69 T350 thru 75 GT750
- Location: southwestern Pennsylvania
SRIS line elimination
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
- Alan H
- Moto GP
- Posts: 3250
- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: SRIS line elimination
Well, the SRIS is fine on both mine, so just block the pipes both ends on yours.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
-
- On the street
- Posts: 44
- Joined: Wed May 27, 2015 3:27 pm
- Country: usa
- Suzuki 2-Strokes: 1973 GT380
Re: SRIS line elimination
How do you take the sris fittings from the bottom of the crank area apart allowing reassembly. I goofed up something and need to pull them out to make sure none of said good up is floating around clogging up the nozzles. Do the bikes run better with out the sump lines connected? At this point my bike is very oil rich so I don't know if it's a great idea to eliminate them.
- Alan H
- Moto GP
- Posts: 3250
- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: SRIS line elimination
If it's oil rich, use better (semi synthetic) 2 stroke oil, and set the pump correctly.
SRIS works, leave it alone. You're trying to mend something that isn't broken.
Another reason that your engine may be 'over oiled' is that you aren't riding it long enough, far enough or fast enough.
Two strokes don't like slow.
Oh, and if you remove the sump lines and don't plug the holes (and spigots next to the inlets at the rear of the barrels), oil will run out and puddle on the floor, the bike may not start, but if it does will run very weak and seize.
SRIS works, leave it alone. You're trying to mend something that isn't broken.
Another reason that your engine may be 'over oiled' is that you aren't riding it long enough, far enough or fast enough.
Two strokes don't like slow.
Oh, and if you remove the sump lines and don't plug the holes (and spigots next to the inlets at the rear of the barrels), oil will run out and puddle on the floor, the bike may not start, but if it does will run very weak and seize.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
-
- On the street
- Posts: 44
- Joined: Wed May 27, 2015 3:27 pm
- Country: usa
- Suzuki 2-Strokes: 1973 GT380
Re: SRIS line elimination
I am using Castrol Power RS TTS fully synth, the pump is set as per the Clymer manual. I will leave a working system alone but my problem is this; I used snazzy silicone lined hose with a smaller silicone lined hose that mimicked the stock rock hard carb to head isolators very well. Sadly my one cylinder not firing well caused the silicone to come apart and I assume into the under crank area of the left cylinder. That is why I want to take off the oil fitting to hopefully flush any bits out before it clogs the sris pick up. As for riding it long enough...it has 2.6 miles since being revived. I just finished building it but have one cylinder consistently not firing more than 50% of the time and a huge dead spot above 25% throttle opening and 4K RPM.Alan H wrote:If it's oil rich, use better (semi synthetic) 2 stroke oil, and set the pump correctly.
SRIS works, leave it alone. You're trying to mend something that isn't broken.
Another reason that your engine may be 'over oiled' is that you aren't riding it long enough, far enough or fast enough.
Two strokes don't like slow.
Oh, and if you remove the sump lines and don't plug the holes (and spigots next to the inlets at the rear of the barrels), oil will run out and puddle on the floor, the bike may not start, but if it does will run very weak and seize.
- Alan H
- Moto GP
- Posts: 3250
- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: SRIS line elimination
http://www.alpha-sports.com/suzuki_parts.htm" onclick="window.open(this.href);return false; Look for the year - bike - crankcase. Bottom left for details.
Just take the pipe off and unscrew it. There may be an internal filter, but it's not necessary and wasn't fitted to the later models. But it's a small hole and I doubt if a piece of pipe will go through it. just run the bike, I can't see a bit of silicone doing any harm. Even if it gets shifted into the combustion chamber, it's hardly likely to hurt anything.
Fit a set of hotter plugs until the engine runs cleanly. I would suggest that there may be blocked carb jet issues stopping it running. It only takes a small piece of crap to block a tiny hole. Trust me on that one, and fit inline filters between tank and carb(s) so you don't have to do it time after time.
Just take the pipe off and unscrew it. There may be an internal filter, but it's not necessary and wasn't fitted to the later models. But it's a small hole and I doubt if a piece of pipe will go through it. just run the bike, I can't see a bit of silicone doing any harm. Even if it gets shifted into the combustion chamber, it's hardly likely to hurt anything.
Fit a set of hotter plugs until the engine runs cleanly. I would suggest that there may be blocked carb jet issues stopping it running. It only takes a small piece of crap to block a tiny hole. Trust me on that one, and fit inline filters between tank and carb(s) so you don't have to do it time after time.
Think of how stupid the average person is, then realise that half of them are more stupid than that.
-
- On the street
- Posts: 44
- Joined: Wed May 27, 2015 3:27 pm
- Country: usa
- Suzuki 2-Strokes: 1973 GT380
Re: SRIS line elimination
One of my check valves is sticking closed at times and then sticking open. Can't figure that out??? Any down side to plugging the ports top and bottom and not using them. Parts fiche shows them as obsolete, anyone have extra valves for the lower sump?
-
- Still in the Driveway
- Posts: 5
- Joined: Wed Jun 08, 2016 1:02 pm
- Country: United States
- Suzuki 2-Strokes: 1974 gt380
Re: SRIS line elimination
I got a new set of 3 a few months back, either from ebay as nos or bikebandit.com. Can't remember w b ich place those came from.
- Alan H
- Moto GP
- Posts: 3250
- Joined: Thu Feb 16, 2012 11:50 am
- Country: England
- Suzuki 2-Strokes: 4 x GT550s - J, M, A, B.
- Location: The Republic of South Yorkshire
Re: SRIS line elimination
Strip, clean and rebuild them.hahahaurugly wrote:One of my check valves is sticking closed at times and then sticking open. Can't figure that out??? Any down side to plugging the ports top and bottom and not using them. Parts fiche shows them as obsolete, anyone have extra valves for the lower sump?
Think of how stupid the average person is, then realise that half of them are more stupid than that.