Jack221 wrote:
You cannot jet these with the carb cover off
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Jack221 wrote: You cannot jet these with the carb cover off |
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It's quite apparent that I am shit at rebuilding engines. Would anyone be willing to rebuilt it for me if I pay for all parts and decent labour charges? I really want this thing running. I can possibly drop off the engine as I travel a lot. Please? No rush either.
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2016 PX 150 (Pinasco Vespone RX 190(On the mend))
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2016 PX 150 (Pinasco Vespone RX 190(On the mend))
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From your video, and if the fuel mix screw is all the way in, I'm guessing you have an air leak somewhere…
Probably at the carb base… That would explain the huge main jet and tons of smoke and the ability to still be able to run. And seems like you're collecting fuel/oil because of your weird jetting If you changes jets and nothing changes, you have an external factor affecting what's going on. It's best to do a leak down test (which isn't carb cleaner/wd40 sprayed around because you can't track down clutch side seal leaks with that…) You'll be going round in circles if the basics aren't covered. |
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Surely and air leak would raise the revs not reduce them at idle. Also mixture screw in is lean so that does not make sense either. I don't think it's an air leak but I will check. Leak down test was good before engine install into bike.
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Not necessarily the case an air leak would just cause revs to rise.
I wouldn't rule it out, you don't have many other things to look into at this point, you'll need to cover all bases How are you doing the leak down test? |
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Blocking inlet off with rubber strip under carb. Then bike inner tube and blood pressure pump with gauge. Holds 240mmg for over 5 mins.
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What inner tube you using mate??? Lol
240? Should explode… and expand to be huge… especially if the tube isn't a loop around from the carb to the exhaust |
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108 wrote: What inner tube you using mate??? Lol 240? Should explode… and expand to be huge… especially if the tube isn't a loop around from the carb to the exhaust |
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I have managed to get it running with the vortex and lid fitted, although when I go into gear it wants to stall. 132 main fitted with 120/BE4. I think I will sell it but be honest that it needs some work doing to it with regards to jetting etc.
If it sells I will buy another standard bike if possible or one that is lightly tuned, say a 177 kit fitted. This bike is too much for me to setup and quite frankly I am a bit sick of it. |
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108 wrote: Wish I could buy it off you. I'll be back in the uk Dec if it can wait |
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SaFiS wrote: Tub doesn't look to be sealing… |
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Just been out for an hours ride. All appears well. Do you reckon it's worth fitting the 24/24 carb and trying that again? Max running temp of 130 C when cruising. A bit less when giving it the beans.
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Can somebody confirm that when running with autolube I should add another 1% in the tank to give 3% overall? Runs well. 132 main was a bit spluttery. Changed to a 128 and its got rid of the splutter and feels more peaky. Only issue is when pulling away from idle it's a bit hit and miss. Sometimes it wants to stall but the idle screw ias all the way in. Ticks over at 1500 with idle screw fully home. Mixture screw is 2.5 turns out. Bike still runs with mixture screw all the way in but revs higher. Weird. I have a 55/160 idle fitted. Could this be too rich if it runs with idle screw fully in?
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With the 24/24 carb fitted, I can't get it to big down. Started with a 160/BE3/132. Changed main to a 145 and it did not feel or sound any different. That's a big change but didn't affect it. Am I missing something? No vortex fitted at the moment. With the 20/20 carb fitted and using 120/BE4/132, bogs down and splutters. Must be an issue with the 24/24 carb somewhere. When in neutral, what should be the max revs at wot?
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Jack221 wrote: Put the 20/20 jets in the 24/24 |
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roody76 wrote: OK I will give that a go tomorrow. The only reason I used the 160/BE3 is because some vespa expert said that it what is used on every 177 to 225 kit. Fuck knows. |
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Jack221 wrote: And what do you think after the 145mj experience? |
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Jack221 wrote: Put the 20/20 jets in the 24/24 When revving from idle, peaks at around 8000 rpm. Splutters and loads of smoke. Good. I will work my way down from there. Will be better once I have had a quick ride to check for it bogging down etc. Hopefully, after all of this, I am almost there. Still undecided on whether to fit the vortex or not. Thanks. |
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Jack221 wrote: Change the BE3 to BE4 before going too far |
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Jack221 wrote: Change the BE3 to BE4 before going too far |
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Hang in there dude. I am also a member of the shitty engine builders club. I have made some really bone headed mistakes in spite of many years of wrenching on other engines. I think you have to be a shitty engine builder for awhile before you are a good one. Looks like you are getting there.
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orwell84 wrote: Hang in there dude. I am also a member of the shitty engine builders club. I have made some really bone headed mistakes in spite of many years of wrenching on other engines. I think you have to be a shitty engine builder for awhile before you are a good one. Looks like you are getting there. |
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roody76 wrote: Should I continue to add 1% oil to the tank even though the kit is now run in? Thanks. AC120 BE4 vortex, carb lid and bellows fitted, or you're just riding around for fun. |
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Jack221 wrote: I only put extra oil in for the first tank. AC120 BE4 vortex, carb lid and bellows fitted, or you're just riding around for fun. |
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Jack221 wrote: I only put extra oil in for the first tank. AC120 BE4 vortex, carb lid and bellows fitted, or you're just riding around for fun. |
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roody76 wrote: I don't have the 200cc oil pump so is it worth adding a bit? |
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Jack221 wrote: In that case, it's a tough call. Your kit will rev about 2000 rpm more than the 150 but still less oil than the 200 pump would. Too much oil will cause issues too. |
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Can somebody give me an idea on safe engine temps measured using a cht gauge? Cruising using 1/4 to 1/2 throttle the temps go up to 160 to 170 degrees C. Wot it seems to drop a bit but not much. I don't want to melt it again. Thanks.
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roody76 wrote: Can somebody give me an idea on safe engine temps measured using a cht gauge? Cruising using 1/4 to 1/2 throttle the temps go up to 160 to 170 degrees C. Wot it seems to drop a bit but not much. I don't want to melt it again. Thanks. |
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