Kind of amazing you can buy a whole tune-up kit with carb for less than a carb kit these days. I got a new flywheel, ignition, carb, filters and hoses for the wife's sthil 180 for less than a carb kit.
Yes these small engine carbs are pretty much throwaway items now. After doing several little chainsaw/weed whacker type carbs I cannot say I am sad about that. But really this size carb would be a pretty easy clean up so it kind of a waste.
The second you removed the fuel shutoff solenoid, I knew this would kill the fuel flow. I had that solenoid fail on my Honda engine. Few hours, but it froze with the needle valve blocking fuel flow. Real expensive part to replace.
Yes, I had not even noticed that the bolt holding the bowl on had the fuel pickup. Of course that makes sense because it interfaces with the shutoff valve. We eventually figured out the mistake. You could solder up the end of that bolt and run without it. But it does help with backfire (or afterfire I guess it is technically) issues in some engines. I would guess Honda wants $40 for that part but you can get aftermarket ones pretty cheap. Thanks for watching! Eddie
Hello, I agree. I have been doing a bit of research on this and apparently 60-80 is normal for these measured the way we did. It looks like the centrifugal compression release prevents getting a complete reading and the engine probably has more like 90-120 as normal once started. We actually got 40 the first time we checked it and 60 was the highest we could get after lubricating the rings. It runs great, so something is definitely off with our readings. If I get a chance, I am going to try loosen the lash on the exhaust valve and try to get another reading. This should prevent the compression release from working. At least that is what I am reading. Seems like it would be much simpler, though less user friendly maybe, if they would have just put a manual compression release on it like every large single motorcycle engine I have ever owned. Thanks, Eddie
G’day Eddie. Sorry that I’ve been a bit slack in the comments lately. Good video mate on showing both carburettors. As you stated, it appears that the motor was down on compression a little. Cheers 🍻. Aaron
Thanks Aaron. Don't ever worry about slacking in comments, at least not with me. I have been focused on a crash course in Fusion, earning the printer and have slacked off myself. Using the excuse of the cold weather to learn a new skill inside, lol. I might have to switch to one of the free CAD programs though. The 10 active file limit in the free version of Fusion is getting a bit annoying. All the best! Eddie
Hello Eddie,
You guys sounded like you had a fun time making the video....
Take care.
Paul,,
We always have a bit of fun playing with toys😁
Kind of amazing you can buy a whole tune-up kit with carb for less than a carb kit these days. I got a new flywheel, ignition, carb, filters and hoses for the wife's sthil 180 for less than a carb kit.
Yes these small engine carbs are pretty much throwaway items now. After doing several little chainsaw/weed whacker type carbs I cannot say I am sad about that. But really this size carb would be a pretty easy clean up so it kind of a waste.
The second you removed the fuel shutoff solenoid, I knew this would kill the fuel flow. I had that solenoid fail on my Honda engine. Few hours, but it froze with the needle valve blocking fuel flow. Real expensive part to replace.
Yes, I had not even noticed that the bolt holding the bowl on had the fuel pickup. Of course that makes sense because it interfaces with the shutoff valve. We eventually figured out the mistake. You could solder up the end of that bolt and run without it. But it does help with backfire (or afterfire I guess it is technically) issues in some engines.
I would guess Honda wants $40 for that part but you can get aftermarket ones pretty cheap.
Thanks for watching!
Eddie
60 psi is way too low. Has it been stood a while & the rings maybe stuck. Hope you get it sorted. Sounds like a great project.
Regards. Steve
Hello,
I agree. I have been doing a bit of research on this and apparently 60-80 is normal for these measured the way we did. It looks like the centrifugal compression release prevents getting a complete reading and the engine probably has more like 90-120 as normal once started. We actually got 40 the first time we checked it and 60 was the highest we could get after lubricating the rings. It runs great, so something is definitely off with our readings. If I get a chance, I am going to try loosen the lash on the exhaust valve and try to get another reading. This should prevent the compression release from working. At least that is what I am reading. Seems like it would be much simpler, though less user friendly maybe, if they would have just put a manual compression release on it like every large single motorcycle engine I have ever owned.
Thanks,
Eddie
G’day Eddie. Sorry that I’ve been a bit slack in the comments lately. Good video mate on showing both carburettors. As you stated, it appears that the motor was down on compression a little. Cheers 🍻. Aaron
Thanks Aaron. Don't ever worry about slacking in comments, at least not with me. I have been focused on a crash course in Fusion, earning the printer and have slacked off myself. Using the excuse of the cold weather to learn a new skill inside, lol. I might have to switch to one of the free CAD programs though. The 10 active file limit in the free version of Fusion is getting a bit annoying.
All the best!
Eddie
Puppy! :)
Yes!