Hello, I have been reading these forums about a year now and just became a member. We bought an 87 LT 80 a few days ago. I have done a "LT 80 search "and I read all 13 pages. I found alot of good info. I want to get rid of the oil injection....but I didn't see detailed instructions on how to go about doing it. Do I need to put rubber plugs at the carb/pump/tank? Should I disconnect the pump from whatever drives it? I want to be able to run the 32:1 premix and still have the ability of using the oil injection in the future if needed or wanted.

Also, for a stock LT 80, what oil do most of you use?

Thanks [img]i/expressions/face-icon-small-happy.gif[/img]

 

If you want to DC it, I would just pull everything off and keep it in the event you ever want to put it back on.
Chances are you won't, but it would only take a minute to put it all back on if needed.
To disconnect, pull the cover on the left side where you access the clutches. (not the small round one, but the whole side cover)..
There will be a plastic piece on the front clutch that turns the oil pump, just pull that off.
If you just want to DC it and leave everything intact, that should be all you need to do.
You probably could plug the hose coming from the resevoir and then hook it back up, but not sure if that's necessary to prevent some minor draining into the carb.

To completely take it all off...........
Disconnect the hose coming from the oil resevoir. If you want to keep it attached, plug the end and roll it up and wire tie it out of sight.
If you want to remove the pump itself, you can fabricate a cover that will bolt right on. Use the bottom of the pump as a template. Or you can order a block off kit I believe.
Pull the tube from the carburetor and plug that hole.

It's pretty simple. I already had plugs from a different carburetor, but I'm sure you can come up with something to plug the holes, or I'm sure others on here will have some good ideas.

Good Luck

 

Thanks, that's the info I needed. I'm not a big fan of oil injection and I have no plans on ever putting it back on for our use. I just want to be able to re-install it if/when I decide to sell it. The new owner may want it. But not ME! I feel better mixing it myself and not relying on a pump, lines or other failure in the middle of a ride. Not to mention, this pump could be 19 years old![img]i/expressions/face-icon-small-shocked.gif[/img]

 

Oh....what brand of 2 stroke oil is everybody running?

 

UPDATE: I disconnected the pump, and removed the tank and all lines. Got some vacuum plugs at the auto parts store and plugged the inlet at the carb and the pump. Also, I decided to go with Amsoil Interceptor premixed at 50:1.....been running on it for 10 hours and love it so far.

 

The two brands that I use are torco gp7 and klotz R-50. Mixed 32:1 Had no problem.

 

i also use the r-50 but mixed at 40:1

 

I use OPTI-2, works well. When Jack opened up my motor he said hardly looked ran.

It's also been highly suggested to use the TORCO GP7.

I did use the Amsoil also when I first DC'd the oil injection, had no problems

Mixing at 32:1. That what I've alway seen recommended.
Never seen 50:1 on these things though.

Good Luck

 

Yea, with the Amsoil Interceptor, you can run the oil mixture 50:1 due to it being a better quality oil. Amsoil mixed at 32:1 would be ok to use. I wouldn't mix just ANY oil 50:1 though.

 

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If general trail riding, use Amsoil Interceptor at 45:1. Intercepter is a good medium RPM pre-mix oil.
If extreme trail riding or racing with modified engine, use Amsoil Dominator at 45:1. Dominator is more for high RPM engines.

For a chart, surf: http://www.amsoil.com/products/twocy...cle_chart.aspx


When you pick a specific brand of oil and the ratio "that's best for you", do adjust its jetting (Main Jet change and/or C-Clip change) to obtain a dark beer bottle brown color on the spark plug. This color must exist in all throttle ranges. Once you get the carb set, don't change your brand of oil. Only need to re-check the plug color for weather changes and/or altitude changes.


Hope this helps as well....

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