Where to get larger main jet for stock HS carb?

wire in the jet? i have never ever thought of that or heard of it, i alway just solder filled n redrilled...

sounds perfectly feasible.

especially on the 142 hua... has no needle :) might try it next time i need to...
 
Is there a good replacement for the stock carb on the HS 142? mine is running good But I would like to be able to change the jets when I travel ( I take my bike with me to Utah) and it doesn't like the elevation change.
 
Another day I learned something

Thanks Headmess , I will put that little soilder idea in my jetting trick bag thank you.
 
The wire in the jet is used by some of the go cart racers. They say it's the way to fine tune the perfect fuel air ratio. It should work fine on these small 4 strokes too. Just make certain it stays in the jet and doesn't get pulled into the engine.
 
If you can use copper wire strands (if you can even find it anymore).lol It is softer than steel and I think aluminum. If it goes in you engine, It might not lunch it out. It will just poop it out the other end.lol
 
Honda Main Jets?

Is there a good replacement for the stock carb on the HS 142? mine is running good But I would like to be able to change the jets when I travel ( I take my bike with me to Utah) and it doesn't like the elevation change.

I bought a Mikuni VM-18 carb cheap and made a manifold to mount it to my Honda motor and then realized that the 18mm was larger than the opening in the block of the motor, so the project has come to a stand still. I've been watching/looking for a Mikuni VM-16 cheap but have not come across one yet. Honda makes/lists four different size main jets for the GXH50 in their parts manual. they range in size from a #48, #50, #52, & #55. My motor which was purchased from Small Engine Warehouse several years ago came with a #55 main jet. If I'm remembering correctly it measured .021 These Honda jets would very likely fit into the HS carb? Seems to me that they run around $9.00 apiece from the local Honda Small Engine Shop (Republic Engine) here in Orange County.

ocscully
 
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I bought a Mikuni VM-18 carb cheap and made a manifold to mount it to my Honda motor and then realized that the 18mm was larger than the opening in the block of the motor, so the project has come to a stand still. I've been watching/looking for a Mikuni VM-16 cheap but have not come across one yet. Honda makes/lists four different size main jets for the GXH50 in their parts manual. they range in size from a #48, #50, #52, & #55. My motor which was purchased from Small Engine Warehouse several years ago came with a #55 main jet. If I'm remembering correctly it measured .021 These Honda jets would very likely fit into the HS carb? Seems to me that they run around $9.00 apiece from the local Honda Small Engine Shop (Republic Engine) here in Orange County.

ocscully

There is a vendor out of Florida who sells the jets. Was wondering if the smaller jet designation meant more flow of gasoline? as I am starved of gasoline. will look into honda engine shop
 
Mikuni VM18 Photos

Found some photos of the Mikuni VM18

ocscully
 

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No I don't believe so. It is not like the gauge system. Where the lower the number the larger the object or cavity. Jets go the higher the number the bigger the hole in the jet. Wich translates into more gas delivery to the air flowing by down the carb. thraot.
 
Thanks ocscully, I will visit the local Honda shop this weekend. I would just like to have an assortment of jets to keep in my tool bag since I have two bikes with the HS engine.
 
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