Fouling Plugs

[Speedy]

quote:Originally posted by Dennis Jones

WHAT DANE SAID Been there, Done all the above, A new PVL made every thing good.
Golden Spectro 52:1 is all that I've used for 30 years in all my 2 strokes. Bikes, Lawn Mowers, Chain Saw, Weed Eater, Leaf Blower, Ect

Dennis Jones

Yes,what DAN said is correct.
You go bei the expirience of people who have used,raced and ridden
a product,and always "DO WHAT THE BOTTLE "says.
If the manufactory tells you to mix 20-1 with there oil,"DO IT"
If you use a oil where it says "MIX 100-1" + the long time expirience,...DO IT.


Helmut"Speedy"Clasen
 Ontario Canada
http://speedy_c.tripod.com
http://picasaweb.google.com/vindurospeedy
2 x Sachs MC-GS 250-7A
1 x Hercules 350-7A 77
2 x Hercules 250-7A 76
2 x Hercules 250-7A 77
Zuendapp 125 GS 72-73

[Ron]

Here's my 2 cents.
The way you ride is the determing factor of how much oil you should use.
If your normal riding is putting around the park and oil is drooling out the end of the exhaust, your using to much oil.
If on the other hand, your screaming your 125cc at 10,000 rpm, holding the throttle wide open and only using the clutch to slow down and your still drooling oil, your using to much.
The balance is to protect and lubricate the engine for the extreme conditions.
Personally, I like to see it drool.
RonW

[454MRW]

I have been running Golden Spectro mixed at 47-1 in my 1979 MX6 250 with no problems until recently. The exhaust pipe tip and front exhaust flange was always very oily and I thought that it may be a little too much and considered either changing oil or reducing the mix to 52-1 as recommended. I recently had the engine freshened up by Gary Ellis and found that the pin hole in the front of the piston to cool the exhaust bridge had gummed over and created a slight hot spot/seizure. Based on that information, I would disagree that too much oil is good. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

[DKWRACER]

Hi Poggers, there is some very interesting reading on the "Spectro" website, FAQ's and an Oil Seminar link as well.
http://www.spectro-oils.com/

Enjoy.....

Tom Brosius

[socalmx]

Yamalube R works great in my bikes and is easy to obtain.

quote:Originally posted by MattyQ

I noticed a lot of folks run Yamalube in their vintage bikes .  Is that a good non synthetic oil that is good for vintage bikes?

Matthew Quinlan

[Speedy]

quote:Originally posted by 454MRW

I have been running Golden Spectro mixed at 47-1 in my 1979 MX6 250 with no problems until recently. The exhaust pipe tip and front exhaust flange was always very oily and I thought that it may be a little too much and considered either changing oil or reducing the mix to 52-1 as recommended. I recently had the engine freshened up by Gary Ellis and found that the pin hole in the front of the piston to cool the exhaust bridge had gummed over and created a slight hot spot/seizure. Based on that information, I would disagree that too much oil is good. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

Please read your story carefully again.
As you wrote it,you did not use MORE oil with 52-1 but less oil then before when you used 47-1.
Fact:
47-1 is 47 liters gas to 1 liter oil.
52-1 is 52 liter gas to 1 liter oil.
Your gummed up piston cooling and lubing hole has nothing to do with your MIX change.

Helmut"Speedy"Clasen
 Ontario Canada
http://speedy_c.tripod.com
http://picasaweb.google.com/vindurospeedy
2 x Sachs MC-GS 250-7A
1 x Hercules 350-7A 77
2 x Hercules 250-7A 76
2 x Hercules 250-7A 77
Zuendapp 125 GS 72-73

[454MRW]

Speedy,
I was running 47-1 and had CONSIDERED reducing the amount of oil to 52-1. If I had done so, I may have avoided the situation that occurred. You miss-interepreted what I said. That small of a change may not have changed the outcome, but as I said, I thought that there was too much oil around the exhaust tip and the front exhaust flange. The bike always ran good, regardless. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

[Speedy]

quote:Originally posted by 454MRW

Speedy,
I was running 47-1 and had CONSIDERED reducing the amount of oil to 52-1. If I had done so, I may have avoided the situation that occurred. You miss-interepreted what I said. That small of a change may not have changed the outcome, but as I said, I thought that there was too much oil around the exhaust tip and the front exhaust flange. The bike always ran good, regardless. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

Why is Inglish so hard to understand??[B)]:(

Helmut"Speedy"Clasen
 Ontario Canada
http://speedy_c.tripod.com
http://picasaweb.google.com/vindurospeedy
2 x Sachs MC-GS 250-7A
1 x Hercules 350-7A 77
2 x Hercules 250-7A 76
2 x Hercules 250-7A 77
Zuendapp 125 GS 72-73

[DKWRACER]

Speedy, last time I checked, Mike's Inglish was just fine.
How's your Jerman?

NGAWA BWANNA!

Of course, this is all in jest....right?[8D]

Tom Brosius
Mile High Pentons

[454MRW]

Now be nice. If I could ride like Speedy, I woudn't worry about my English either. By the way, Tom, did you sell that 79 swingarm? Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

[Rain Man]

so this thread must be the reason all the young bucks run 4 strokes [8D]

Raymond
 Down East Pentons

[DKWRACER]

Oils do not encompass the whole story.
Consider this: We are very fortunate to have modern technology at our disposal. Each and every decision comes from both experience and trust.
What works for others, may not work for you!

Seek what you trust, piston coatings are a part of the =.
My only recent failure was not about oil, or the ratio. I should have coated the damm thing!

Still Friends eh?[]

Tom Brosius

[Lloyd Boland]

Okay, let us consider this.  If we accept the fact that a specific volume of fuel (gas plus oil) is metered as it goes through the carb by the jetting, it mixes with air and goes into the engine.  A very simplified version of what happens.  If we have a certain mixture, lets say 20:1, and we reduce the oil concentration to lets say 32:1, we have decreased the amount of oil that enters the engine per the same metered volume.  If the total volume of fluid enters, then we have incleased amount of gas that mixes with the air and decreased the amount of oil.  Because the jetting hasn't change, the total volume (gas plus oil) remains unchanged.  If this is correct, by putting less oil in the pre-mix, you untimately increase the gas and therefore the gas to air ratio mixture increase, it becomes richer.  If you change your gas to oil ratio, you may have to change your jetting (you may have to lean it out slightly).  I was given this lecture many years ago.  It seems logical to me but it is counter-intuitive.  I previously thought that if you put in less oil you leaned the bike out, but if my logic above is correct, you actually make the bike richer with less oil (because of more gas enters the engine).

Anyone else heard of this?

Lloyd Boland

Sorry for the circle logic.

[454MRW]

Yes, that is correct. In fact this was a topic of conversation some time ago on this message board in regards to varying the oil to gas ratio to adjust the fuel/air ratio for different elevations and climate changes. It was mentioned that it was far simpler a way to rejet for conditions than actually having to change jetting for different races based on temperatue and weather conditions. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

[Lew Mayer]

Tom,
 I have had piston skirt AND piston top coatings fail.[B)]

Lew Mayer