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**Raccoon** · 04-10-2009, 07:40 PM

Well, its your bike... do that if it makes you feel better.

As for me, I'm not gonna retire my oil pump anytime soon.

Just one question - have you just left your oil pump to run dry by not putting oil in the 2t tank... or something else?

**pk28.karthik** · 04-10-2009, 11:18 PM

Originally posted by gsferrari View Post

I'd really much rather protect my engine than depend on a 20+ year old mechanical pump to function properly.

+1 that.

regarding the problem with my oil pump , when riding with sane speeds(which we dont) oil flow was perfect. when redlining the pump used to get choked for unknown reason. why take risk with a faulty pump?
there is a thread somewhere here discussing the same issue whether to use pump or pre mix...i have lost track of it but we could try searching it for this topic.
as far as my bike , i will be using pre mix.

Fact is, you dont require that much 2t unless the engine is pushed to the limit... ie in conditions of high load and high speed. The oil pump is there because it supplies a much more realistic amount of 2t. A correctly adjusted pump means your bike will invariably consume less 2t oil than when using a pre-mix!

if this is the case then the link i have provided mentions the ratio 20:1 parts in any case. so going by that at any riding style the oil and petrol mixture should be same right? so even the pump should supply the same ratios

@gsferrari
dont you think you are running too rich mixture?

**gsferrari** · 04-10-2009, 11:44 PM

Originally posted by pk28.karthik View Post

@gsferrari
dont you think you are running too rich mixture?

I run 2% mix in my RD and havent decided on the ratio for the TZR yet but I want at least 50% of full load lube requirement to be in premix form.

autolube has definite benefits but it is unfortunate that a simple failure of of Rs 1000 or so component can result in catastrophic engine failure.

on the RD the pump is removed completely and the cables cut off so throttle action is easier as well.

**pk28.karthik** · 04-10-2009, 11:54 PM

Originally posted by gsferrari View Post

I
autolube has definite benefits but it is unfortunate that a simple failure of of Rs 1000 or so component can result in catastrophic engine failure.

i have gone thru that phase recently.

Originally posted by gsferrari View Post

I on the RD the pump is removed completely and the cables cut off so throttle action is easier as well.

am plannin the same on my bike but if its gonna improve then am at it at the earliest

Btw according to the link we have to run 50ml oil for a litre of petrol. one thing to see is the petrol rating they have and ours. these things always confuse.

**atul_astro** · 04-11-2009, 01:17 AM

3% is good enough for mineral based oil..With motul 800 2t I run 12-15ml per litre on the drag bike..runs like a charm and no bad wear on the liner yet..And yes the drag bike sees redline in all gears above 9500rpm

**Raccoon** · 04-11-2009, 02:17 AM

Originally posted by pk28.karthik View Post

+1 that.

regarding the problem with my oil pump , when riding with sane speeds(which we dont) oil flow was perfect. when redlining the pump used to get choked for unknown reason. why take risk with a faulty pump?
there is a thread somewhere here discussing the same issue whether to use pump or pre mix...i have lost track of it but we could try searching it for this topic.
as far as my bike , i will be using pre mix.

if this is the case then the link i have provided mentions the ratio 20:1 parts in any case. so going by that at any riding style the oil and petrol mixture should be same right? so even the pump should supply the same ratios

@gsferrari
dont you think you are running too rich mixture?

Are you sure it was a fault with the pump? It just might have be the pipes etc. Maybe they were not bled properly and had air bubbles in them? Maybe contamination entered the oil tank... or the pipes themselves were dirty when they were fixed or something? Mechanics are notoriously careless about such things. The pipes themselves can crack/leak etc, if too old/not of the best quality. Often mechs. dont bother to even replace the clips or whatever you call them, at the ends.

The pump will NOT supply the same ratio in different conditions! Why on earth would you need the auto-lube system if the same ratio is the best in all conditions? The ratio WILL vary greatly when you are using the pump.

**Bladerunner** · 04-11-2009, 03:54 AM

Originally posted by gsferrari View Post

I run 2% mix in my RD and havent decided on the ratio for the TZR yet but I want at least 50% of full load lube requirement to be in premix form.

autolube has definite benefits but it is unfortunate that a simple failure of of Rs 1000 or so component can result in catastrophic engine failure.

on the RD the pump is removed completely and the cables cut off so throttle action is easier as well.

Are you running the Motul oil in your RD as well?

I'll be buying Petronas fully synthetic oil on Monday. If I like the performance, I'll stock an entire crate at home.

**gsferrari** · 04-11-2009, 06:12 AM

Originally posted by Bladerunner View Post

Are you running the Motul oil in your RD as well?

I'll be buying Petronas fully synthetic oil on Monday. If I like the performance, I'll stock an entire crate at home.

Yes - only motul but this is overkill for the RD so I may blend for the RD with some other lube and go pure for the TZR.

**pk28.karthik** · 04-11-2009, 10:47 AM

Originally posted by Raccoon View Post

Are you sure it was a fault with the pump? It just might have be the pipes etc. Maybe they were not bled properly and had air bubbles in them? Maybe contamination entered the oil tank... or the pipes themselves were dirty when they were fixed or something? Mechanics are notoriously careless about such things. The pipes themselves can crack/leak etc, if too old/not of the best quality. Often mechs. dont bother to even replace the clips or whatever you call them, at the ends.

oil pipes were new and was using the transparent(or semi you can say) ones just to double check the oil flow. I was the one who particularly wanted the oil pump at the first place after rebuild. so mech got it connected, checked for air bubbles,leaks etc it was working fine with normal riding. ripping her would choke the oil flow. dont know the reason

.

Originally posted by Raccoon View Post

The pump will NOT supply the same ratio in different conditions! Why on earth would you need the auto-lube system if the same ratio is the best in all conditions? The ratio WILL vary greatly when you are using the pump.

regarding this i am half knowledged

. but i have heard people suggesting pre mix as well as autolube

**pk28.karthik** · 04-11-2009, 10:50 AM

Originally posted by atul_astro View Post

3% is good enough for mineral based oil..With motul 800 2t I run 12-15ml per litre on the drag bike..runs like a charm and no bad wear on the liner yet..And yes the drag bike sees redline in all gears above 9500rpm

how will you calculate the % oil for petrol while mixing. i thought ratios were easier.

**Raccoon** · 04-11-2009, 02:09 PM

Originally posted by Bladerunner View Post

Are you running the Motul oil in your RD as well?

I'll be buying Petronas fully synthetic oil on Monday. If I like the performance, I'll stock an entire crate at home.

Do let us know what you think of Petronas. Whats the cost by the way?

Originally posted by pk28.karthik View Post

oil pipes were new and was using the transparent(or semi you can say) ones just to double check the oil flow. I was the one who particularly wanted the oil pump at the first place after rebuild. so mech got it connected, checked for air bubbles,leaks etc it was working fine with normal riding. ripping her would choke the oil flow. dont know the reason

.

regarding this i am half knowledged

. but i have heard people suggesting pre mix as well as autolube

Strange... you must have a block or something somewhere... Hope your mech did the bleeding job properly.

Autolube + premix cud be a good idea in some cases... I'v done that v few times... when the engine was going to be really stressed. I used something like 1 - 0.5 % oil in the tank. More frequently I add just a tiny bit of oil in the tank... keeps it from rusting too.

Originally posted by pk28.karthik View Post

how will you calculate the % oil for petrol while mixing. i thought ratios were easier.

Didn't exactly get your question... are you asking how much oil/lt of petrol when considering percentages? Pretty simple - 2% = 20 ml oil and 3% = 30 ml.

**pk28.karthik** · 04-11-2009, 05:07 PM

Originally posted by Raccoon View Post

Didn't exactly get your question... are you asking how much oil/lt of petrol when considering percentages? Pretty simple - 2% = 20 ml oil and 3% = 30 ml.

how do you come to conclusion that its 2% or 3% that you have to mix? is there any theory behind this. according to factory standards/company the bikes will have a measurement ratio right?

**Raccoon** · 04-11-2009, 05:44 PM

This conclusion can only be reached by the manufacturer or the oil company since we don't have the equipment to conduct such tests. Obviously the manufacturer's recommendation should take precedence. However, since most latter 2 strokers have autolube systems, you most likely wont find the recommendation in the manual... so you can't know for sure. This is one more reason to use the bike the way the manufacturer intended - with the autolube!

But generally 2 or 3 % is what is usually used in most 2 strokers.

Most 2 sroke oil makers say 2% is around what you should use... I'v seen this printed on many oil bottles in the past.

**Bladerunner** · 04-12-2009, 05:54 AM

I bought the Petronas oil yesterday. I'm just waiting for the Yamalube to be consumed now.

Its for Rs. 325 a liter for '07 stock. The new stock will be Rs. 457.

**psycho 98** · 04-12-2009, 11:27 AM

Originally posted by Bladerunner View Post

I bought the Petronas oil yesterday. I'm just waiting for the Yamalube to be consumed now.

Its for Rs. 325 a liter for '07 stock. The new stock will be Rs. 457.

Kunal you have a pm.

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