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Post by efeseu on Sept 26, 2015 15:54:21 GMT -5
Yes but it may not be enough. You can have 60-70 psi and still no start. You gotta have at least 100psi, 120+ is excellent. Ok, I'll check that tommorrow. What would I have to do then if the compression would be too low?
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Post by Fox on Sept 26, 2015 16:19:33 GMT -5
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Post by derbiman on Sept 26, 2015 16:23:55 GMT -5
Check the crank seals. They are behind the variator on the left side and behind the magneto on the right side on each end of the crankshaft. Bad crank seals will make it pop, as you say,but it will not start.
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Post by aeroxbud on Sept 26, 2015 20:16:13 GMT -5
Yes but it may not be enough. You can have 60-70 psi and still no start. You gotta have at least 100psi, 120+ is excellent. Ok, I'll check that tommorrow. What would I have to do then if the compression would be too low? How did you get on with the compression test?
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Post by efeseu on Sept 27, 2015 17:51:45 GMT -5
Ok, I'll check that tommorrow. What would I have to do then if the compression would be too low? How did you get on with the compression test? Soo... my dad said that there's no point of doing it - just wow... I give up on this thing. I think I'm just going to sell this shit. Ps. Which town do you live in? Do you live somewhere near Hounslow or Feltham?
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Post by aeroxbud on Sept 27, 2015 17:58:33 GMT -5
How did you get on with the compression test? Soo... my dad said that there's no point of doing it - just wow... I give up on this thing. I think I'm just going to sell this shit. Ps. Which town do you live in? Do you live somewhere near Hounslow or Feltham? Portsmouth so not too close. I would take the head off and have a look at the piston and rings. Very easy to do. You should be able to undo the engine and shock mount and turn the engine enough to get at the head.
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Post by spaz12 on Sept 27, 2015 18:07:09 GMT -5
Go to an auto parts store and borrow a compression tester. It's worth the time and effort.
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Post by efeseu on Oct 2, 2015 12:14:30 GMT -5
Whenever I tell my dad to check the compression etc. he says that there's no point and keeps saying that it's the ignition coil - wuut? I asked my friends who have motorbikes and they've told me that something could've happened to the bendix? By bendix I mean this part here: Does this have any impact on the scooter? Something scratches everytime I try to start it.
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Post by efeseu on Oct 4, 2015 17:37:12 GMT -5
I guess I'll just go to a garage and try to get it fixed...
Edit:
So basically I tried to start it up in the morning and I couldn't as the battery had died (almost a month it's been sitting there)... And so I didn't hear anything scratching now when trying to start it up. I charged up the battery for about 30-40 minutes and hooked it up but wasn't able to start it up as it's cold outside - I didn't hear the scratching noise anymore though! I'm getting the battery charged up now and I'll see in like 3 hours if it does start up.
The noise is the same as it was before - it cranks normally and there's definitely fuel going into it as I could smell it when I'm trying to start it up!
I'll keep you informed what's up with it and if it's going to start up!
PS. About a month ago it took me like 10-15 times to get it running when it was cold, so it might work! It's raining now as well.
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Post by spaz12 on Oct 5, 2015 17:47:36 GMT -5
Thanks for your replies. Yes, its a 2 stroke scoot. I don't know how my dad tested the spark, but I presume he did it as it should be done, since he had his own bike a few years ago. And yes, I couldn't start it up again after this has happened so you have confused me with someone else When starting up, it does sound somewhat different to what it sounded like before this has happened. I'll check the compression if I find something to do it with :/ So I originally thought that this was a two stroke scooter. I based a lot of my assumptions on that as well. Looking at that picture that you posted above (one incredibly clean motor), it's clear to see that it's a 4 stroke. Check the Valves maybe?
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Post by efeseu on Oct 6, 2015 5:09:09 GMT -5
Thanks for your replies. Yes, its a 2 stroke scoot. I don't know how my dad tested the spark, but I presume he did it as it should be done, since he had his own bike a few years ago. And yes, I couldn't start it up again after this has happened so you have confused me with someone else When starting up, it does sound somewhat different to what it sounded like before this has happened. I'll check the compression if I find something to do it with :/ So I originally thought that this was a two stroke scooter. I based a lot of my assumptions on that as well. Looking at that picture that you posted above (one incredibly clean motor), it's clear to see that it's a 4 stroke. Check the Valves maybe? No no. It's a 2stroke.. I just took a picture from the internet to show you what I mean So yeah, it still won't start. I called a mechanic and he said to give him a call and come tomorrow.
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Post by efeseu on Oct 13, 2015 17:36:17 GMT -5
Ok guys...
I want to get my scooter back up running.
I'm fed up with these mechanics - they tell you to call them back on a certain day but when you call them they either don't pick their phone up or are leaving the country until the end of the month.
So, I'm totally newbie to this scooter fixing thingy.
I'm free all day thursday and friday and want to try and fix the "easy" parts first...
What do you guys think I should do first?
The scooter cranks up reeeeaaaallyyy fast - not even going to bother buying a compression tester.
I'm thinking of checking the starter bendix first. Have you got any tutorials or step by step guides to taking out the bendix, seeing if it's turning the correct direction etc?
It would be great if someone could post links here for new people like myself.
Any other ideas that I should check first? Not including the engine parts like the cylinder etc..
Thanks.
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Post by Fox on Oct 13, 2015 20:21:29 GMT -5
So I just went back and re-read this whole thread and I gotta say that it really sounds to me like this is just some guy screwing with us. Swollen pistons indeed!
If you are legit and you really have no idea how to fix a scooter then why would you not follow the suggestions of knowledgeable people and perform a compression test?
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Post by efeseu on Oct 14, 2015 1:44:24 GMT -5
So I just went back and re-read this whole thread and I gotta say that it really sounds to me like this is just some guy screwing with us. Swollen pistons indeed! If you are legit and you really have no idea how to fix a scooter then why would you not follow the suggestions of knowledgeable people and perform a compression test? Maybe I don't have anything to do it with... Saying this the 3-4th time. If you really want me to check the compression, then I'll take a barometer (or whatever it's called) from my friend and check it on the weekend or next week.
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Post by efeseu on Nov 1, 2015 14:29:00 GMT -5
Hi there again. After a long time I've finally got my dad to check the piston, rings etc.
We've checked the rings and everything and the cylinder + piston was sort of 'bad' in a way. Soo... we got the old 50cc cylinder + piston and put it together. When I tried to start it still nothing...
I have literally no idea what could be wrong with this thing.
Parts that were replaced: - CDI Box - Ignition coil - Voltage regulator (Rectifier) - Cylinder - Piston & rings
Any other ideas? :/
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