Quick question on main jet model

[Guest]

Been looking around trying to search and find the right main jet model for my 1980 gs450E. Im pretty sure the carbs are mikuni bs34 I bought a pack from bike bandit and they were wayy too big.

I got these in a 145 Because I put pods on the carb so I wanted to up the size.

Any help would be appreciated

[Steve]

That is the correct model jet, but might be a bit large.

I don't have information that is specific to the '80 450, but most of them, other than the '83 450E, had 115 mains. The '83 had 120 mains.

For pods, the general rule of thumb is to add 4-6 sizes, depending on the type of pods. Starting with the 115s, that would mean that you would need something in the 125-130 range. Starting with the 120s, you would to go 130-135.

If you also have a freer-flowing exhaust, you will need to add a few sizes, too, so you might be OK, if you have non-stock pipes.

.

[BassCliff]

Greetings and Salutations!!

Hi Mr. bvailette,

You'll find a chart of stock carb specs on my little website. From there adjust accordingly for modified intake and exhaust.

If you are here you probably have a 30 year old motorcycle that needs about 20 years worth of maintenance. In the links below you'll find maintenance lists, documentation, wiring diagrams, "how to" guides, vendor links, tips, tricks, and a whole lot of GS goodness. This is your "mega-welcome". Let's get started.

Let me dump a TON of information on you and share some GS lovin'.

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If there's anything you'd like to know about the Suzuki GS model bikes, and most others actually, you've come to the right place. There's a lot of knowledge and experience here in the community. Come on in and let me say "HOoooowwwDY!"....

Here is your very own magical, mystical, mythical, mind-expanding "mega-welcome". Please take notice of the "Top 10 Common Issues", "Top 15 Tips For GS Happiness", the Carb Cleanup Series, and the Stator Papers. All of these tasks must be addressed in order to have a safe, reliable machine. This is what NOT to do: Top 10 Newbie Mistakes. Now let me roll out the welcome mat for you...



Please Click Here For Your Mega-Welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

More links to helpful threads in the forum:
Help! Your Bike Won't Start
DON'T DO THESE THINGS
Help! Your Bike Won't Run Well
Oh God! Pods!


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BassCliff