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Post by tommikene on Apr 3, 2021 19:40:26 GMT -6
I would run the fuel line directly from tank to carb bypassing the vacuum petcock and installing a manual one. Also don’t forget to plug the vacuum port on the carburetor. Those vacuum petcocks are known to fail and keep you guessing.
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Post by tommikene on Dec 19, 2019 22:48:42 GMT -6
They really work. Looks were not that important. And they cost me nothing since I used my scrap leftovers from other projects  |
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Post by tommikene on Dec 12, 2019 23:59:19 GMT -6
Sounds like the engine is not turning over. Check the starter gears, or try using the kick start. I hear grinding, but no engine turn over.
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Post by tommikene on Dec 12, 2019 23:51:27 GMT -6
Depends how cold. I ride my scooter through the winter and if it's below -3C (28F) I spray some starting fluid on the filter and use a kick start. Also, the air/fuel mixture for starting is different from summer and winter.
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Post by tommikene on Aug 12, 2019 18:53:39 GMT -6
Some states like NY don't have inspection on 50cc. They are registered as limited use and are not supposed to go over 30MPH. I would put big bore kit in and with that open the intake a little and re-jet the carb.Should gain ~10-15 MPH, no mods to muffler needed.
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Post by tommikene on Aug 12, 2019 18:42:54 GMT -6
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Post by tommikene on Aug 6, 2019 19:19:00 GMT -6
Thanks!  |
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Post by tommikene on Aug 6, 2019 19:16:41 GMT -6
That I don't know. I never had a wrong head with me. Maybe you can get the correct head assembly separately? At least no surprises after that bullet s bitten.
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Post by tommikene on Aug 6, 2019 19:03:59 GMT -6
I got mine from ebay. It was listed as for small motorcycle, and it covers my scooter with windshield and trunk box. It is a bit small for my Honda Rebel which also has a windshield and trunk box. Super easy to throw it on and it hooks/connects on the bottom. I think it was about $30, 2 color general cover.
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Post by tommikene on Aug 6, 2019 7:44:21 GMT -6
There are 2 kinds of heads with different valve lengths however.
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Post by tommikene on Aug 5, 2019 22:14:08 GMT -6
My concern is fuel gauge... check your ignition switch in that case. Something is off I guess. In that case, ignore everything above. Also, check your on/off switch. It actually may have 3 positions. Mine, even though marked as on/off only, had 3 positions. One was blocked by a spring inside that I discovered when I took it apart.I mention and show the switch in this video
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Post by tommikene on Aug 5, 2019 22:10:46 GMT -6
On your hand brakes (on both sides) you have two tiny safety switches. They fail sometimes. Most people apply left brake and then start the engine. Try squeezing the right brake and start with the button. If starter works, your left brake safety switch is broken, most likely stuck. Try to find it and clean it. happened to me once, took a while to figure out. If I remember correctly, the left side should push out, the right switch you push in when you squeeze the brake lever.
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Post by tommikene on Aug 5, 2019 20:59:08 GMT -6
I rebuilt mine 3 times, and only once had a compression loss after 1000km. Wouldn't start anymore. Redid the work and no issues. My scooter has 12'000 km as of now. Also an 80cc rider First I did the 80cc conversion that lasted for 10'000km. Then a piston rod bearing failure, metal fragments from bearing ate everything inside. Rebuilt, then 1000km compression loss. Rebuilt again with new kit and now no issues. The kits can be faulty as well. Or, we can always make a mistake. |
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Post by tommikene on Aug 5, 2019 20:57:21 GMT -6
Start with compression (especially after big bore work). If you don't have compression tester, you can get an idea by just trying using kick-start. If you can rotate the engine effortlessly (without noticeable resistance) then either get the tester and exact reading for your peace of mind, or consider it a compression loss. Something went wrong in your conversion  |
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Post by tommikene on Aug 5, 2019 17:55:52 GMT -6
Hello everyone. Here is a video that I recently took of same bikes on the same stretch of the off road area. This should give you some idea of what to expect on rough terrain.
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