What's on your bench?

[N8TE]

I used to do a lot of those on aluminum with my Dad and Brother. The jig is a lot different!

Satisfying making my own stuff...ya the jig is pretty nifty. Allows me to do right or left hand helical offsets

 

[M2theB]

Installing some new vanes today.View attachment 235713

I used to do a lot of those on aluminum with my Dad and Brother. The jig is a lot different!

 

[MustangMike]

Well, I could not reach any of my Tax clients I needed to obtain more info from, so I played with some chainsaw carbs … just could not help myself!

On my first attempt, I learned what not to do, but luckily the second attempt seems to have worked.

The first pic is a ZAMA made Walbro style carb stock (purchased from D Dave). The venture is a little smaller than the real Walbro carbs, but otherwise they work well. I'm pretty sure the tighter venture is limiting the RPMs of my Ported Asian 440 Big Bores.

On my first attempt, I opened up the venture approximately .025 and also tried to modify the fuel nozzle by slimming both sides - a mistake! The saw did not want to idle unless I made the Lo very rich. Then, when I tried to accelerate, it fell on it's face unless I richened up the Hi. When I richened the Hi it would not rev (was way too rich). Played with various tunes for a while, but it was a catch 22!

I did not realize (till I ground it) that the fuel delivery nozzle has a wider opening near the end, and a smaller opening higher up. By breaking through the walls of the wider opening, I screwed things up. I will likely try to file it down all the way across and see if I can save it, but for now I just pulled out another carb.

So on the next carb I just opened up the venture and left the fuel nozzle alone. It seems like I may have achieved success! The saw idled well, accelerated well and definitely hit higher RPMs than I did before.

I was stoked and ready to put it in some wood when the wife comes out yelling at me not to disturb everyone in the neighborhood with my saw on Easter! Women ... they don't understand anything that's important!

Hopefully I will get the time to put it in some wood tomorrow and see how it does. I'm optimistic, but know better than to make predictions before I actually test it! I modded a muffler once on a 660 and it piss revved fantastic, faster throttle response, higher RPMs, but when I put it in wood it fell on it's face!

Original Carb, 1st attempt, 2nd attempt.

 

[M2theB]

Satisfying making my own stuff...ya the jig is pretty nifty. Allows me to do right or left hand helical offsets

Ours looked like big steel chip clips.
Good rainy day work.

 

[heimannm]

 

[merc_man]

Seeing ifi can bring this generator battery back to life. It was under a year old when it stopped taking a charge.

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[MustangMike]

No cutting today … windy and rainy as heck, and too busy anyway! Even though there is an extension, it is kinda crunch time!

 

[redlight066]

Sure you can just leave that ethanol gas in the tank forever.....

 

[redlight066]

Same customer. I don’t believe I’ve ever seen this type of fuel pump diaphragm. And that’s screen really isn’t necessary at all. I don’t know why they put it in at the factory.

 

[Wonkydonkey]

Yeh, I hear ya, those same customers think as it’s blocked, it will fix it and be ok

 

[redlight066]

Really.....

 

[redlight066]

Hahahaha!!! I’ll be damned. It runs. For my BIL. Used carb kit, fuel lines and a purge bulb. Rear view mirror warranty

 

[WillG]

Plate compactor engine replacement complete. Runs sweet! Customer is picking up later tonight.

Installed the new ignition module on this old Vandermolen Windmill backpack blower with a Kawasaki 2 stroke. Has spark now. Gonna mount it properly after work tomorrow (need to get a longer screw and it's metric) and toss some fuel in it and see if it'll run!

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[MustangMike]

Will, 5-30 should work just as well (or better) than 10-30.

 

[merc_man]

Made a bar adapter for the echo 670. Now i can run stihl bars on it.

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[countryhog]

Seeing ifi can bring this generator battery back to life. It was under a year old when it stopped taking a charge.

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What are you doing to attempt revival?

 

[WillG]

Will, 5-30 should work just as well (or better) than 10-30.

Manual recommended 10-30 and that's what I used.

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[WillG]

New ignition module mounted in the original spot and she fired on a prime shot. Carb is taking a hot bath and I was able to find a new old stock fuel pump diaphragm and gasket on eBay.

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[av8or3]

I found an orange saw under there.

 

[RI Chevy]

OMG!!!