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 Post subject: Oil injector?
PostPosted: Tue Jul 25, 2017 8:39 pm 
Still in the Driveway

Joined: Mon Jul 17, 2017 11:22 pm
Posts: 4
Country: USA
Bikes owned: 1973 Suzuki TS400 K Apache
I have heard different things from different sources regarding on whether or not to disengage the oil injector and mix my own fuel, or to keep it in and trust it will work properly. Any suggestions? Bike is a 1973 ts400k.
Thanks guys

 Post subject: Re: Oil injector?
PostPosted: Wed Jul 26, 2017 12:51 am 
World Superbike
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Joined: Thu Feb 16, 2012 11:50 am
Posts: 2192
Location: The Republic of South Yorkshire
Country: England
Bikes owned: GT550s GT750 GSX1400 and lots of spares
The CCI system works well. Why try to mend something that isn't broken?

 Post subject: Re: Oil injector?
PostPosted: Wed Jul 26, 2017 5:30 am 
Moto GP
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Joined: Mon Dec 13, 2010 4:32 pm
Posts: 3321
Location: southwestern Pennsylvania
Country: USA
Bikes owned: 69 T350 thru 75 GT750
The crank is designed so that one main bearing gets tranny oil & the other gets injector oil. If you just switch to premix only, one of the crank main bearings will not have an oil supply. That will end badly.

You can switch to premix if you take the motor apart & make changes so the main bearing gets exposed to the premix. If you are interested in doing this, perhaps one of the forum experts can tell you what is needed.

If the bike has been setting for a really long time, the CCI system might need tending to. Same if its leaking. Otherwise its a simple design & tends to be rather reliable.

What’s the history of your bike & are you having any problems?

BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE

 Post subject: Re: Oil injector?
PostPosted: Tue Aug 01, 2017 12:19 pm 
On the street
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Joined: Tue Aug 01, 2017 11:48 am
Posts: 28
Location: Brighton, MI USA
Country: US
Bikes owned: ts250m
I totally agree with the two posts above. Pretty much all modern 2-cycle marine engines are oil injected. It's the way to go for sure. The Suzuki CCI systems are very reliable too and with the current synthetic 2-cycle oils they actually run surprisingly clean.

Currently - 75 TS250, 02 Kaw ZX-6R
Previously - 70 T350, 71 TS250, 72 GT380, 72 TS125, 72 TS250, 75 Yam YZ360B, 72 GT380 diy cafe racer, 80 GS750, 73 TS185, 82 GS1100

 Post subject: Re: Oil injector?
PostPosted: Mon Aug 07, 2017 1:39 pm 
Road race school

Joined: Wed Jul 10, 2013 12:04 pm
Posts: 875
Country: England, UK
Bikes owned: FZ50, GP100, RG125 Gamma, GT380, Bandit 1200S
Why bother using premix? Its messy and a hassle. Its so nice to have an oil tank that you don't have to fill up every time you get fuel. Not to mention it may use less oil using CCI, saving running costs, lubricates the engine better, making it last longer and causing less carbon build-up means less frequent de-coking is necessary in your engine and exhaust.
Just make sure you have no leaks, the oil pump cable is in good order and adjusted correctly and no air locks.
Once set up properly, CCI is waaaay better than premix. I've had both over the years and the oil injection wins hands down. They only cause major hassle when owners fail to adjust the pump correctly (usually when they have fitted new throttle cables or adjusted the cables on the carbs and forgot to recheck the one for the pump). And adjusting them is easy. You only need a Haynes manual, simple tools and a few minutes of your time.

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