Switching to Bike Carbs. Heres a write up!

[rysskii3]

A bike tuner will likely have a ton of jets for an R1, unless they dont keep stuff in stock for carbed bikes anymore.

no one really has them in stock, and its a b!tch to find them online.

[ncbrock]

Any local yamaha dealer will be able to order them and likely have them in stock. They usually have boxes and boxes of jets for various carbs

[rysskii3]

Any local yamaha dealer will be able to order them and likely have them in stock. They usually have boxes and boxes of jets for various carbs

I tried. Nothing local, and even when i call dynojet which makes jets for r1, they only have the slightly larger set rated for stock engine with only exhaust.

[ncbrock]

then looks like drilling is your best bet, its not hard at all just order a dozen or so small drill bits of the right size from mcmaster-carr

[rysskii3]

then looks like drilling is your best bet, its not hard at all just order a dozen or so small drill bits of the right size from mcmaster-carr

I'm going to take the car to a shop that specializes in carbs, so they will take care of it.

[yeayeayea]

well if it comes down to it, drilling them is super easy with a drillpress, especially one with a vice.

Hell for less than the cost of a jet kit I bought my drillpress and vice off craigslist.

[pnavarro]

So... no help for me?

[rysskii3]

So... no help for me?

maybe it would be better to take the car to a shop that works on carbs. i much rather do that and have them dyno tune it than messing and guessing with minimal knowledge.

[YJSAABMAN]

So... no help for me?

Know nothing about those other carbs, man. Hell, I don't even know much about my R1 carbs!

When you say they have a "pump," I'm assuming an accelerator pump, like a Holley or a Weber. I think the R1 style carbs just use vacuum to increase fuel flow.

[rysskii3]

on a side note, what size are the R1 carbs?

[pnavarro]

maybe it would be better to take the car to a shop that works on carbs. i much rather do that and have them dyno tune it than messing and guessing with minimal knowledge.

That'd be great, if only where I live had knowledgeable carb specialists. So no, there aren't. Also, the guy with these carbs is not near me (In Mexico City, Mexico), he's in the country of Guatemala, so I'd like to be able to help him as best to my ability.

Guesswork was what I did when I installed my R1 carbs, thanks to the knowledge of some awesome dudes on here, which gave me the guts to do the mod myself, instead of handing the job to someone else. I'm not saying it's not good, it's just different.

Anyways, I'll contnue to look for answers.

[pnavarro]

Know nothing about those other carbs, man. Hell, I don't even know much about my R1 carbs!

When you say they have a "pump," I'm assuming an accelerator pump, like a Holley or a Weber. I think the R1 style carbs just use vacuum to increase fuel flow.

Yes! That accelerator pump thingy, whatever that's called. Having a bit of idea on how to adjust it would be awesome...

[YJSAABMAN]

Yes! That accelerator pump thingy, whatever that's called. Having a bit of idea on how to adjust it would be awesome...

I haven't played with them too much, but here's a video I found on the basics of the Holley Carb's accelerator pump. IT should at least give you a better understanding of it works than I can!

http://www.youtube.com/watch?v=dW6YGxVTW5Y

[pnavarro]

I haven't played with them too much, but here's a video I found on the basics of the Holley Carb's accelerator pump. IT should at least give you a better understanding of it works than I can!

http://www.youtube.com/watch?v=dW6YGxVTW5Y

Wow, thanks! It clears out many questions! Thanks!

[rysskii3]

which filters are the least restrictive for the carbs?

[86Franklin]

Screens. Then a nice paper filter such as k&n or a good foam filter for decent flow but best protection.

[rysskii3]

Screens. Then a nice paper filter such as k&n or a good foam filter for decent flow but best protection.

that would be nice but how easy is to find it, because i can easily buy k&n cone filters, but they are $$$$$.

[funpig]

Here is what I did for my "filter" Took half of the R1 intake and mated up with half of an aircooled fuel injected airbox and doubled up some window screen as the filters. Works great and almost looks like it could be a factory item.

On a side note:
Are any of you monkeys going to be making it to SOWO next weekend?? It would be interesting to get as many R1 carb setups together.

[yeayeayea]

that would be nice but how easy is to find it, because i can easily buy k&n cone filters, but they are $$$$$.

ebay has cheap carb filters

[rysskii3]

ebay has cheap carb filters

They are cheap for a reason.

[yeayeayea]

They are cheap for a reason.

The set I have seem fine. But I can respect you wanting a known brand for something like an air filter. I dont even run filters. They hit my hood

[rysskii3]

They are cheap for a reason.

The set I have seem fine. But I can respect you wanting a known brand for something like an air filter. I dont even run filters. They hit my hood

Mine fit no problem with filters, I just don't buy anything on eBay unless It's a known and respected brand. EBay sells lots of crappy products, and I learned that many years ago.

[ncbrock]

people run no filters all the time with webers, I dont see why cheaping out on ebay filters for the street is a problem. I run no filters unless its raining on my webers.

[rysskii3]

people run no filters all the time with webers, I dont see why cheaping out on ebay filters for the street is a problem. I run no filters unless its raining on my webers.

good luck with re-building your engine. im going to be racing the car, so there will be a need for filters.


So i was checking my timing, got the car warmed up and it cycled the radiator fans 2 times. The only time I saw the timing mark was when the dial on the gun was past 60. Where should the timing be set at?

[ncbrock]

people run open webers ALL the time up at the track. Every car ive seen at the vintage races with webers didnt have any filter on it. Id say 80% of people on here with webers run no filters also so I guess they all will be rebuilding their engine too? just sayin, don't knock something till you actually know

[yeayeayea]

Hes made it clear he wants to run filters, so no need to attack anyone.

I will say, running filters vs no filters makes a difference in what jets you run. My car will not run right with the filters on, the slight restriction is enough to make it pull too much fuel.

[oldschool eighty8]

Since we're on the filter topic what does everyone think of these uni filters?

[ncbrock]

Hes made it clear he wants to run filters, so no need to attack anyone.

I will say, running filters vs no filters makes a difference in what jets you run. My car will not run right with the filters on, the slight restriction is enough to make it pull too much fuel.

I'm not saying to run no filters I'm just saying that running "cheap" ebay filters on any type of road is fine. Unless your following someone costantly that's in the dirt or your track cleaners suck then it will be fine with cheap paper filters. If you feel like going overkill on everything then go ahead its not my money

The only reason I would go with a quality filter is if your carbs are tuned properly Nd your WOT all the time and fuel is atomizing out the front like they should the filters will break down eventually and I've seen filters do more harm than good. So id rather get a quality filter for that quality rather than believing they block out more particles

[rysskii3]

people run open webers ALL the time up at the track. Every car ive seen at the vintage races with webers didnt have any filter on it. Id say 80% of people on here with webers run no filters also so I guess they all will be rebuilding their engine too? just sayin, don't knock something till you actually know

do you understand english? i said that i wanted filters, leave it at that!

Hes made it clear he wants to run filters, so no need to attack anyone.

I will say, running filters vs no filters makes a difference in what jets you run. My car will not run right with the filters on, the slight restriction is enough to make it pull too much fuel.

thank you.


anyways, where should the timing be set at?

[86Franklin]

Any reusable paper style filter with k&n oil will be just as good as a k&n. Also keep in mind the dirtier a filter gets the more it filters and restricts flow. If you're tracking your car run screens if you want some kind of protection. If your carbs face the front don't run foam filters when its raining it'll suck up as much water as it wants. Paper does the same but not quite as bad. It'll also ruin the paper if soaks up enough water. I found if its raining my car only runs with the filters off. Not the best for the engine but I had to do it a couple times :/

[rysskii3]

Any reusable paper style filter with k&n oil will be just as good as a k&n. Also keep in mind the dirtier a filter gets the more it filters and restricts flow. If you're tracking your car run screens if you want some kind of protection. If your carbs face the front don't run foam filters when its raining it'll suck up as much water as it wants. Paper does the same but not quite as bad. It'll also ruin the paper if soaks up enough water. I found if its raining my car only runs with the filters off. Not the best for the engine but I had to do it a couple times :/

thanx. the car is not driven in the rain ( no wipers).

[ncbrock]

do you understand english? i said that i wanted filters, leave it at that!


thank you.


anyways, where should the timing be set at?

No English at all. Set the timing at 60 you'll be fine seriously do you even read? I'm not saying run no filters I'm just saying don't bash ebay filters for street use because people run no filters all the time. Who speaks English now? I forgot why I left vortex a while ago, now I remember.

[yeayeayea]

No English at all. Set the timing at 60 you'll be fine seriously do you even read? I'm not saying run no filters I'm just saying don't bash ebay filters for street use because people run no filters all the time. Who speaks English now? I forgot why I left vortex a while ago, now I remember.

Your argument is flawed. Just because you can run no filters, does not mean that you can run cheap filters just fine. What if a cheap filter falls apart, and sucks in your intake? Then it would most certainly be worse than running no filter at all. This is likely what he is trying to avoid. I have had my car eat a set of screens I was running as an intake. I dont like to think about what it did to the inside of the engine, I just pretend it went through without causing any harm.

[rysskii3]

Your argument is flawed. Just because you can run no filters, does not mean that you can run cheap filters just fine. What if a cheap filter falls apart, and sucks in your intake? Then it would most certainly be worse than running no filter at all. This is likely what he is trying to avoid. I have had my car eat a set of screens I was running as an intake. I dont like to think about what it did to the inside of the engine, I just pretend it went through without causing any harm.

almost everything on ebay is crap. i rather spend more on quality and reliability.
just ignore ncbrock, he always talks out of his ass, half the comments he makes are completely meaningless.

now that we are dont conversating about filters, whats the timing should be at?

[ncbrock]

almost everything on ebay is crap. i rather spend more on quality and reliability.
just ignore ncbrock, he always talks out of his ass, half the comments he makes are completely meaningless.

now that we are dont conversating about filters, whats the timing should be at?

yeah half my comments are meaningless how old are you 12? I actually just love posting things to make you mad because its quite hilarious.