What oil is best? and what ratio?

[Jusgunn3]

I’d rather have a few bites than spray tha crap on me…

 

[16TAF]

Yep, that’s it. We would spray our uniforms then let them bake in the sun to dry.

That's Permethrin. It works good but you have to wear the same clothes or spray ahead and wait for it to dry.

 

[bwalker]

Edit..
What oil/ratio in your opinion would help to solve the bearing pocket issue?

No amount of oil fixes that.

 

[Tomos770]

for me best i can get here motul 710 40:1 cheaper than husqvarnna xp

For me motul scooter power 2t.....@32:1

Compared both PDSs and only difference I could find was that scooter power has TBN ob 2.4 instead of 2.1 of motul 710....

It is usually also 2-3€uros cheaper per 1L....

 

[Motorka]

I know this. got 710 for 14.50e /l Is it true that 2T oils bind moisture when you open them?

 

[Tomos770]

I would say maybe....ester fortified ones....?

I would also say.....any decent mineral oil for winterizing (with alkalate fuel-aspen or whichever)....

Decent mineral....Castrol Garden....Motul 100....hell....even Stihl HP

 

[bwalker]

I know this. got 710 for 14.50e /l Is it true that 2T oils bind moisture when you open them?

Not if you store them in metal cans. Avaliable on Amazon.

 

[lilspenny]

Any word on motorex cross power 2T?

I have run it in br800x and fs131r. Clean and responsive at 50:1. Runs a tad warmer than Saber but has a better hit. Edit... Smells good.

 

[bwalker]

I've seen people here and in other places on the internet net quote flashpoint numbers as being indicative of how an oil combusts. Its not and here is something to consider to drive the point home.
Thr Flashpoint of Mobil 1 0w30 is 234 degrees, which would be on the low side for a two cycle oil. Try burning some and let me know how clean it combusts. Hint not very clean at all.

 

[JRHAWK9]

I'm curious as to what's the difference between Schaeffer's 7000 and 9000. I know one's semi (7000) and one is full (9000) but in terms of real world results in chainsaws, which one performs (as in burns clean and protects) better? I know tree monkey has had very good results with the 7000 and has been using it for decades. On paper the 9000 should be even better, but things don't always work that way. Wondering if anybody can share real results if they have ran both in chainsaws.

 

[bwalker]

I'm curious as to what's the difference between Schaeffer's 7000 and 9000. I know one's semi (7000) and one is full (9000) but in terms of real world results in chainsaws, which one performs (as in burns clean and protects) better? I know tree monkey has had very good results with the 7000 and has been using it for decades. On paper the 9000 should be even better, but things don't always work that way. Wondering if anybody can share real results if they have ran both in chainsaws.

9000 doesn't burn very clean in Lawnboys, beyond that I cant say. Nor can I think of a reason to use a marine oil in a chainsaw.

 

[FederalQ]

I'm curious as to what's the difference between Schaeffer's 7000 and 9000. I know one's semi (7000) and one is full (9000) but in terms of real world results in chainsaws, which one performs (as in burns clean and protects) better? I know tree monkey has had very good results with the 7000 and has been using it for decades. On paper the 9000 should be even better, but things don't always work that way. Wondering if anybody can share real results if they have ran both in chainsaws.

Price is the biggest difference about double. The 9000 is around $24 a quart with 7000 $12 or $40.95 for a gallon. The 7000 mixes well at 32:1 and that’s what I use. Boat oils are supposed to be more environmentally friendly. Next time I’m in the big city I will splurge and pick up 9000 and do some comparisons.

 

[Gary Courtney]

I'm curious as to what's the difference between Schaeffer's 7000 and 9000. I know one's semi (7000) and one is full (9000) but in terms of real world results in chainsaws, which one performs (as in burns clean and protects) better? I know tree monkey has had very good results with the 7000 and has been using it for decades. On paper the 9000 should be even better, but things don't always work that way. Wondering if anybody can share real results if they have ran both in chainsaws.

I have run both. I settled on 9000. Piston and cylinders have no buildup. A slight wash on dome after hours of runtime. heavy coating on crank and bearings and skirts.

 

[Vintage Engine Repairs]

Once I had an opportunity to be working with Makita MM4 trimmer.....that was just before they anounced that they will bail out of gasoline program....around year 22/23....

I was impressed....as Lilspenny is describing....superb low rpm torque.....I was able to cut small trees/branches with ease with reinforced 2.4mm string

But that was more like Hondas gx25/gx50 engine then 4-mix....

Makita - Technology - MM4 Makita 4-Stroke

Makita Power Tools. The preferred brand of power tool to the trade

www.makita.co.nz

I have been really impressed with Makita 2 stroke trimmers. They are so compact and light! Here's a sbs, similar cc's. Their 4 stroke stuff has been pretty average in my experience unfortunately, they seem to be very finicky with worn barrels. The slightest wear there and a lack of adjustability (at least with the carbs they sold them with here) ment a lot of issues came across my bench. If I was to go 4t it would be a Honda straight shaft with a gx35 on it.

 

[Tomos770]

Barrel was ment here as cylinder bore/liner in your case? Or barrel inside the carburetor?

 

[legdelimber]

I'll wager on it meaning the carburetors. The rotary ones seem dedicated to hiding any adjustments there might be.
I wonder if, After through cleaning, you could roll the barrel in crazy glue and get a little bit of improvement in the gap?
Some of you go-kart crowd folks may remember guys rolling the breaker points plunger in that glue, to help with oil leakage into the points area.
A trick for Briggs flat heads with a worn plunger hole.