Have I missed anything?

[Lopper]

Sorry for trying to be helpful. Clearly you are royalty and I approached from the wrong direction without bowing my head far enough. Don't worry it won't happen again your grace.

Nah you don't need to bow your head, you just need to learn how to read a question properly.

[Redline Junkie]

All we need now is someone to start a debate on which pipes are best and we have a party!!

Lol

[JonW]

haha Rob.... what oil is best?

[p51mustang]

haha Rob.... what oil is best?

Jon W as long as it works for you Jon W right

[hondaror]

Sorry for trying to be helpful. Clearly you are royalty and I approached from the wrong direction without bowing my head far enough. Don't worry it won't happen again your grace.

Nah you don't need to bow your head, you just need to learn how to read a question properly.

I have to laugh at this. You are asking jetting advice. Have you run the bike on premix yet. Did you do a plug chop?
A plug chop is for main jet adjustment. Tells you if you are rich, good or lean. If you have not run the bike, do a 32:1 mix or what the oil manufacturer tells you to use and run the damned thing. 32:1 is rich. Do one thing at a time. Deside what mixture you are going to use and keep it constant. Then adjust your main 1 size at a time using the plug chop. When the plug shows a tan dry porcelain ring deep in, you're there. It's what we call a safe zone. That's the way a 2stroke should run. Now run it hard. They love that.

[hondaror]

Never increased jet size due to lack of oil pump. Doesn't mean its not the way to do it. Where are you? Elevation likely to be more important...Stock usually rich for us up here at 3000 feet.

Yamaha sent all their RZs out with rich jetting as a precaution. It caused lots of problems for 500 riders and the left rear cylinder. The 350s are so well designed they just ran poorly until you made changes.

[Lopper]

I have to laugh at this. You are asking jetting advice.

Yes jetting advice not how to mix fuel advice.

Did you do a plug chop?

Can't do a plug chop, still being broken in.

32:1 is rich.

For a scooter, but I wouldn't go higher than that on an engine with a 10k redline.

[(F5)]

This might come as a surprise to you, but I'm assuming from your rude manner that you are like 20 and expect that the world revolves around you and people are here to do your bidding.

With the question largely answered and, having premixed my RZ, I thought a bit of advice on dealing with the drag of filling up in a remote petrol station might be useful.

But you come back with an attitude that will severely limit how much people want to help you. I certainly won't make the mistake again.

[hondaror]

Break in is no sustained load. 1/2 tank should do it with 3 heat cycles to start. I ran my motocross race bikes, similar red line with no tach, on Bel-Ray MC-1 at 60:1. Never had an engine failure in 9 seasons of racing.

[Lopper]

Break in is no sustained load. 1/2 tank should do it with 3 heat cycles to start. I ran my motocross race bikes, similar red line with no tach, on Bel-Ray MC-1 at 60:1. Never had an engine failure in 9 seasons of racing.

But is higher than 32:1 even worth it except for a saving a few $ on oil, I'm just going by this article(albeit old): viewtopic.php?f=14&t=6030&hilit=premix" onclick="window.open(this.href);return false; and what most of these guys said: viewtopic.php?f=1&t=9278" onclick="window.open(this.href);return false;

[evan_calgary]

I have also seen another article (albeit with more charts and less reading) that came to the conclusion that more oil is not necessarily worse and peak rpm came at a reasonable mix ratio. Bit counterintuitive but hey.

Break-in, tires, oil, mix ratio, pipes and the list goes on are all things that you will not find a straight answer for since they are all pretty much subjective. I also typically break in hard after a short initial period of test as per Rory.

Remember this is all free advice you are getting here. Lots of knowledge and people happy to help and chat old bikes but be nice.

The attached chart should give you some info on where the different aspects of the carbs have the largest impact.

We can't give you ahead of the fact advice on jetting when there is no baseline. Carb'ed bikes all run differently and then there are the ambient conditions involved. You will even find bikes out there running different jet sizes between the carbs. So what it comes down to is you need to test something within the acceptable range then go from there. Jetting is not much fun but is usually worth it in the end. I have given you a place to start...get through break in then come back with any issues or a description of the running condition once you get there.

[tacky1]

My buddy runs all his dirt bikes at 75:1 for years. Trail riding and racing. Never had a problem. Engines look like new inside. I run my dirt bikes at 50:1. All run great. My cr500s love 50:1.
I tried 40:1 on my kiddos 80 and it hated it. Smokey. Less power etc. back to 50:1 and running like a champ.

[evan_calgary]

The empirical evidence in multiple studies shows that at least street bikes WILL produce more power at a more oil weighted mixture. Have also always run as little oil as possible myself. The studies are old but the dyno is the ultimate proving tool and this is not the only one I have seen that shows the same result.

That being said, as I mentioned before, the mixture ratios is just another tire or pipe battle. Just a bunch of opinions many of which are 'back in the day'.