jets

Hello, I just bought my 1994 VMAX for $2300. After having some issues with it idling (which i figured out and solved) I tore apart the carbs and rebuilt them and in the process damaged them by pounding out the brass pieces that the float valves sit in. Long story short I ordered new carbs and am...

Greetings all, I was reading the Factory pro site and viewing the pictures of worn needle jets and their pics show their jet as oblong and stick as round. I assume this is a mistake. But a question remains in my mind about whether or not I need new jets. I looked at a dozen needle jets in my...

Hoping some of you guy,s can tell me how to remove carbs as I need to un block idle jets. Bike running fine untill warmed up then keeps cutting out when I slow down I think my jets are blocked after sitting up over winter period. Any help would be really great. Regards Lee

Aloha everyone. Well, I'm trying to dial in my carbs and she is starving all over the place. I need to change my mains, but not too sure how much bigger I should try. Here is my set up. Morley's muscle jet kit Kerker 4:2:1 Ross Pistons Needle is at second richest slot towards point end...

First Dyno on this bike. I was curious as to why the HP was actually a bit less with the Tboost set at 3000 rpm than it was with it set at 6000 rpm across the board? Someone has the logical answer but fill me in if you could enlighten me. Also I was told that the main jets may be a little large...

Anyone have the stock jets to part with? Thanks!

Freshened up my carbs this past winter. Floats were all set significantly higher than "stock". Set them up per the sticky for setting dry float levels. Now I'm running out of steam up high. Lowered the clips on the needles (stage 1) and I got most of my power back, but it's pulling from the...

Has anyone used the large head ebc main jets in their vmax carbs?

Hi all I've been tinkering with FCR setups for a while and I would like to know what jets are the FCR users using on their carbs. I know it depends on pressure altitude and all that but I would like to have an idea of a starting point to work with. The FCRs have 4 jets, 2 air jets (main and...

Yamaha special size main jets Don't know if anyone knows or cares but Yamaha makes I guess what would be called half size jets. E.g. between 150 and 152.5. They are used in carbureted snowmobiles. Could be used for fine tuning a Vmax. Here are sizes in the Vmax main jet range and part #'s...

I have a 1985 Yamaha Vmax with Dale Walker exhaust. I got the bike from a good friend that had pasted away. The Max is in near perfect condition.This is my 4th vmax. It had a bad flat spot at 7000 rpm and had a hard time pulling more rpm. I took it too a guy in my town that is very good with...

I recently purchased an 86 Max that was worked on by someone with very limited mechanical skills. I just had the carbs cleaned out and it appears that the previous owner drilled out the main jets. Someone with the proper skills could make them work but this guy drilled them all different...

Hi, I am getting ready to order a set of main jets on Jetsrus.com and they have the genuine Mikuni main jets for around $6 a piece, then they have the OEM equivalent Mikuni main jets for around half the price. Are these as good? Are they they made to the same tolerance? Prolly being a cheap...

When I bought this VMAX, I couldn't get any mechanics to change the jetting on my Carbs. They would gladly charge me $1000 to rebuild them, but no jets. Well ultimately, they did me a favor. Now, I just went to buy some Jets from Jets R Us and Paypal declined the transaction and they sent me...

Ive had my Max for a couple years now and have never done a tune up or replaced any parts other than an oil change. All I know about the bike is that it has Supertrapp mufflers(stock intake filter). I know the previous owner had the carbs taken apart and "rebuilt" by him. I dont know if he...

Is there a difference in fuel (main) jets vs air jets? or are they one in the same just different sizes and makes, mikuni/DJ, Thanks.

Ok guys what jet kit should i use with a 4-1 kerker with 2 and 1/2 baffle .. My old bike had Stage 7 but alot has changed over the years.. Also just had the tubes and no vboost .. Should I go back that way again.. Juist got the Bike this past weekend and i know its running lean ..pipes are...

Hi I am new to the world of VMAX and love it, I have had my MAX for about 3 weeks and will probably own one for life. The 2000 I just bought has a K&N filter and UFO Drag star slash cut exhaust on it. I am wondering what the recommended jets and needles with this set up are on it. I...

So me being me I just had to mess with my carbs and now I can't get it to run like it did before. My set up is 4-2-1 header stock airbox - with K&N filter stock carbs 147.5 jets A/F - 4 turns out elevation is 758 feet. brand new sparkplugs (installed yesterday) gapped per the manual. My...

In an effort to eliminate my 4k rpm stumble I want to get the best main jet for my setup: Canadian 97 full power VMAX Stock intake / airbox Supertrapps closed cap 10 disks Front downpipes changed to larger bore stainless - no crossover Standard rear downpipes Stock needles shimmed two...