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Messages - robmsz

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1
zx50 / Re: Loss of power, compression loss or carb?
« on: July 05, 2020, 08:34:50 PM »
I’m gonna break down and order another head. Thinking about a 70cc size. I’m thinking at the very least my rings have worn from the back pressure of the VERY restricted exhaust. It runs ok until it warms up them it will bog under throttle. Any ideas what it could be?

I’ll move onto head recommendations in future posts.

2
zx50 / Re: Oil light stays on and also blinks when you turn blinkers on
« on: July 05, 2020, 08:30:59 PM »
Might not help your issue but I have a similar problem. My blinkers will hyper flash until I turn on my headlights, then they operate normally.

Try turning your headlights on/off see what happens.

As long as They operate I’m happy.

3
zx50 / Re: Strange Exhaust - Zx 50 Super Fever 2006 euro
« on: June 29, 2020, 07:35:13 PM »
Ok, so I’ve read the entire post and looked at the pics. I’m not sure what’s going on there and with the pics it’s still hard to see what’s going where. What I do know is a regular muffler with one pipe will work on that same as any other zx50. I seen one pipe going to the muffler, another one pinched off and I’m not sure where the other one is going. Stock the way it sits should do around 40mph.

If you want to add any more information ill do my best to help. You’re trying to go faster correct?

4
zx50 / Re: Battery connected backwards...
« on: June 29, 2020, 07:10:07 PM »
If all you did is blow a fuse that’s nothing. I’m sure if I thought about It, I  probably topped that by something I wouldn’t want to post 🤣

5
zx50 / Re: Loss of power, compression loss or carb?
« on: June 29, 2020, 07:08:16 PM »
Okay, threw in in a fire TWICE and will run normally until it warm up. As soon as it warms up it bogs, will run at idle all day but as soon as throttle is applied BAAAWWWWAAA. Fire it again or what? Any ideas out there? I could drill holes in it but that would defeat the “muffler” besides leaving me with a holy (sic) muffler 🤣. I look for a new one (which I’m not convinced is the problem....$150. Has anyone upgraded to a performance muffler and maybe have a original muffler getting kicked around and in the way willing to sell cheap?

6
zx50 / Re: Starting a maintenance parts list to get ordered
« on: June 20, 2020, 02:21:10 AM »
I have around 15km on mine the only things I’ve changed is CDI boxes, tires Avon vipers and maybe front pads. Oh, and I changed a jug only because my oil line came off.

7
zx50 / Re: Loss of power, compression loss or carb?
« on: June 17, 2020, 08:21:22 PM »
Yes, literally throw in the fire. Paint is no problem, it’s been painted before. I’m trying to get enough oil residue out to function semi normal. I don’t want it to turn cherry red, then I can take it for a couple hour ride to heat it up enough to clean out the rest.

I think my problem started when I start it, take it around the block (less than a quarter mile) and park it. I don’t give it a chance to heat up enough to keep it clean.

Do you think I’ll warp it if it’s done to medium?

8
zx50 / Re: Loss of power, compression loss or carb?
« on: June 16, 2020, 11:50:47 PM »
We can nix the replacement muffler, I’m going to throw it in a campfire and hope for the best. I’m not sure if it’s wasps or oil buildup but I’ll let you know after it comes out of the fire.

9
zx50 / Re: Loss of power, compression loss or carb?
« on: June 16, 2020, 09:27:55 PM »
Had to walk the scooter home yesterday. Pulled the seat out to get to the muffler and had to remove it COMPLETELY to get it to run.. Does anyone have a original muffler laying around for cheap? Maybe upgraded to a high performance one. I’m not looking for performance, I’m looking for reliability, I have a motorcycle for performance.

Does anyone know where to get a decent CDI replacement for cheap? The last 3 I bought were duds. I had two spares for a few years. One hanging in the garage, the other in the glove box on the scooter. The one in the glove box is working ok. Then I wired up the second one and it doesn’t work. In the mean time I ordered two more. One will light up but won’t start, the other one won’t even light.

10
zx50 / Re: Loss of power, compression loss or carb?
« on: June 10, 2020, 12:49:28 AM »
When I was younger I would have been elbow deep into pieces of this scooter. As I’ve gotten older, smarter and lazier I’ve learned to be more patient & methodical in my diagnosis. I’ll check, dbl check and check again if something doesn’t run right. It saves me a lot of un necessary work over a problem that was something simple to begin with. It helps to move from one project to another instead of the mindset MUST FIX NOW attitude.

11
zx50 / Re: Loss of power, compression loss or carb?
« on: June 09, 2020, 10:00:54 PM »
Got it all back together and no spark, I mean what are the chances. I keep a spare CDI in the glovebox so I popped than in and it started right up and ran smooth as silk. The only thing I needed to do was unplug the damn exhaust   ::) who woulda thunk it?

12
zx50 / Re: Loss of power, compression loss or carb?
« on: June 09, 2020, 08:12:20 PM »
Dragging my feet not wanting to rip this thing apart seems to have paid off for me. I did end up pulling the carbatooter and cleaning it. But like I said before, it’s usually pretty dependable unless something unforeseen (ex. Oil line falling off) happens. While I was stalling putting the carb back on and looking over stupid sh** on the scooter, I noticed the outlet tip on the exhaust looked a little small. I stuck a screwdriver in there and started breaking apart what looked like a mud plug. Apon further cleaning a couple BBQ’d wasps came out. Not saying that was the problem because I haven’t replaced the carb yet but talk about some stupid sh**?......

Now that I have a positive thing happen I’m about to re-install the carb....so update coming soon!

13
zx50 / Re: Loss of power, compression loss or carb?
« on: June 09, 2020, 06:36:20 PM »
I finally got around to test the compression, 125psi so we can nix a jug change. I checked that first because that’s what it sounds and feels like.

I’m leaning to something Murphy law like, it’s something simple and stupid. Could any hoses or automatic choke have to do with anything? Tried starting it today and would even pop. I cranked it full throttle like I do with my chainsaws when the flood, still nothing. The plug is wet.

14
zx50 / Re: Loss of power, compression loss or carb?
« on: June 08, 2020, 09:40:08 PM »
Way over my head except for the part that said “not necessary”. That is good news for me! So your saying I’ll benifit more power with a 70cc head & carb WITHOUT having to upgrade my exhaust? What size carb should be fitted to a 70cc head?

15
zx50 / Re: Loss of power, compression loss or carb?
« on: June 08, 2020, 04:36:46 PM »
I find that hard to believe. I had 16km on when I had to replace the head and that was only because my oil feed fell off. I have no where near the mileage on with the second jug & piston. That being said, I have yet to get off my a** to do a compression check. You do have a point by killing two birds with one stone with bigger head, bigger carb. I wouldn’t need to clean the carb if it was bad. Wouldn’t that necisitate A bigger exhaust to get the power out of the two other upgrades?

I guess that’s neither here nor there until I get a compression check. It’s been rather trouble free and I’d like to keep it that way. I’m dragging my feet because whatever I find I’m going to have to remove the plastics and they’re hanging precariously as it is.

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