anyone can give me insight if the mikuni is actually worth the price? i have heads and exhuast...was thinking of either mikuni or cam. The cam seems like it would be cheaper, but i want the most reliabilty.....whats yall thoughts?

the cam would be better for load carrying as well as an all around good mod. the carb isnt a bad choice neither youll see a slight increase in speed but if i were in your position i would get the cam simply for load carrying

'worth the price' is a subjective statement based on your values and what you are trying to achieve.

If you are doing the install on both, there is a big difference in the amount of time required to install.

DB8 I understand the install time issue, but if i will not get much from the carb, i will just go the cam route...

i know the cam will give more, and to me, the cam doesnt seem like a hard install, probably the worst part will be removing the engine from the frame. i have a prodrive...but my concern was with reliabilty also. I hear some bad stories about the mikuni from a few people....but never really hear to much bad about the cam...

i wish someone could give some insight on what causes the failures when people mod these engines? is it an RPM issue? can the engines only handle so many RPM? Or is it a weak block? whats the cause of the failures? i know issues like running lean will cause failures, but my main concern is what RPM can these engines safely handle and what is a good RPM to stay below to keep it together....i know if i put a cam i will be all over the Rev limiter, but i can easly add pitch/cup to help keep it down but will i not get the performance from the cam if i keep the stock rev limiter? i know some cams are designed to turn up so many rpms???

well if you run anything at 5100 rpm all the time its not going to last long no mater what carb you put on it. now you might have seen were some of the mikuni carbs have fell of, i believe there is a carb bracket on the MMT store so that would be a easy fix. but if your gonna run 4300 rpm(im assuming you are with your mods) then no the mikuni will not affect reliability

Man just get a cam forget the carb yeah it takes longer to do but you'll have be happier with that than the carb

Thanks for the reply's DB-8. What you say makes a lot of since....

i guess the best thing i can do is look for a used kit for sale. i know for sure just having an accelerator pump on the carb will defenatly make a huge difference in responce....so i agree with the gains..

you have any insight on the best jetting on the mikuni for sea level? with heads carb and exahust?

also,,now you see all the replys and why there is so much confusion and convolution with the "mikuni" issues....lol..

I have a mukuni and love it, just being able to idle smoothly is a plus and your not fighting the motor all the time, as soon as you squeeze the throttle its there, no falling on its butt. Depending on what mods you plan on doing will decifer the jetting and such

My reasons for putting the Carb last on the list are price, I don't know how to tune them, like the stock governor setup, don't have a bog or really any issues with the stock Carb, and IMO more bang for your Buck on pretty much every other mod available besides exhaust but that's first on the list because its needed to get the most out of other mods.
That's my take on it. Don't hate the mikuni, just don't know how to mess with em and its an expensive setup. My time is less important to me I guess, but I also enjoy tearing the motors down and putting them back together.

I have a mikuni and MM exhaust and love this combo. it was all easy to install and just made my first hunting season with the mods and no problems. I feel that this is a safe and reliable set up. it gave me more power, load capacity, and speed and response. I may down the road do IM heads but for now I am pretty satisfied.

I have had a single mikuni since square 1. original motor was an HD 4000 (stock everything with carb). I have since added exhaust, had head work done, and upgraded rods and rockers. now at 171 hours and no issue out of the carb.

I started with exhust EVT.. added the Carb and marshmellow after my first season hunting cause I needed more to carry a load... It was a huge increse... At the start of this season I added the cam cause the crank case gastet needed to be changed, so being the motor was open that was the time.. I would never look back adding the cam, carb, exhust now.. Yes its a lot of $$ but do everything in steps and when time and $$ allow.

I'm thinking about a minkuni also. I have the stock carb jetted now with heads and cam., and it runs good except when I have it trimmed all the way down in the bad stuff. I have trouble with it bogging down and killing. I have to trim it up a little to get it to start after that. From what i've been reading, a minkuni should help this.

I didnt think the carb would add more power then the cam would...intresting for sure...

i expected throttle response but not much moer power! great info...
i guess im gonna have to look for one now...

Get you a carb and fun, you'll like it, get the cam next after since you already have heads and exhaust the cam will compliment them nicely, you'll never get the full potential of the motor with a stock carb. Mukuni really wakes it up in my eyes, i too started with exhaust, then went to mukuni 42hsr, then i had cody do my head and intake work, then after i saved some money i went ahead and built the whole motor. But one of the best gains was when i put on the carb, the second of course was after all internals were modified, now i just look at it and smile and it don't have to be even running......triple that when i start it and that SOB starts hitting hard and the crispness of the throttle is unbelievable. FOr now i'm done except one more change

I have carb and exhaust... I noticed a huge difference from stock carb to the mikuni.. Just a much better throttle response and it jumps out of the water..

Hell idling around and taking off on plane is well worth the money spent on the carb upgrade by themselves

sounds good,,,

i asked because i met an ole boy at the launch with the mikuni and he claimed he didnt notice much difference....he did say he noticed some responce but that was it...

kinda wierd...i expected more responce thats a no brainer with the accelerator pump, but i didnt expect it to flow that much more then the stock carb....im glad it does cause the stock carb off idol stumble sucks...

Cam for sure, just trust me.

Damn,,,

this shit sucks. i can see how they will both increase power but im looking for bang for the buck, and reliability...

i have never heard anything bad about the cams, but have heard some people have issues with the carb, e.g. tuning, running lean and burning, falling off...shit like that...

what to do, what to do...

If I were to get one. Who would be the best to get it jetted and tuned right? Can the average mechanic do this or does it need to be brought to someone who is familiar with this particular style of carb?

well i would think with all the carbs installed, the jetting should be dialied in perfectly by now? Lots of trial and error we should be able to benefit from!

so lets hear it,,,,whats the jetting to get them right?

Depends what mods, whether you run at sea level or way above... there is more to it than just a jet size also. You have to tune the idle to make it idle properly and set the needle position for the transition onto the main from the pilot. They just pissed me off, but I'm sure it isn't that hard if you know what you are doing.

The best way to make sure you are getting the most out of it is to tune it with an a/f meter. The carbs are pretty much infinately tunable which is really nice if you know how to tune them or have a device that tells you if you are lean or rich at specific rpm's.

Coming from experience if u got it all tuned right which is the key, it's really nice just to have the throttle response that u get that u just dont get with the stock. But like I said if I got one again I would like the people at gator tail or setx or somebody here in fl that really knows what their doing. I put mine in and it worked by all means but just the way it burned oil and what not, it was tuned right. Other than that it's just as key as exhaust which has good air flow the crab makes its it breath better.

^^ what's this suppose to mean???

Just trying to help

My bad just A quit reply before class I'll go threw and fix typos

hahaha,,,dudes are ruthless on here!!! I get a laugh everytime i get online due to someone messing wit someone else....

Yea I'm sorry....i been on here for almost 2 years now and all the other A-HOLES are wearing off on me. Just trying to fit in.

Yes. I know deadbird has a little "bung" welded on to an exhaust that he plugs/threads a lil sensor into. It stores info on an SD card that he can put in his computer when he gets home and helps to dial in the carb. Little changes can make considerable differences.

The a/f meter is a good idea...but makes me wonder how much difference the two cylinders run as a/f ratios go...

makes me wonder if you can just stick it in the exit of your exhaust and get a good reading or would you really need to go with bungs on each headpipe? or just one side...

I am now a googelized expert on the G2 air fuel ratio Guage kit. My in depth research suggests that an oxygen sensor inserted in the exhaust manifold translates oxygen concentration to meter reading. So the set up describe above in deadbird8's exhaust is such a set up?

Hell, I don't know. I just know he has one and it helps to dial in a carb. He's online, maybe he'll chime in and help me outta this hole I dug.