Engine Lacking performance after being in cold

Mopedamauter79 · #1 01-19-2009, 02:09 AM

My engine works great when u keep it inside and then go and use it. It would even work fine being in the cold. However I hit some loose snow and the handle bars twisted around and I readjusted them and keep on going. Then last night I noticed it wasn't going past 33km/h. It was even struggling to get up big hills. I had to help the engine by pedaling while it was on to make it up the hill. It didn't even sound right either. Sounded a little louder then it should of and I don't know why. I checked for leaks and I can see none. The gaskets appear to be intact and not torn or worn down at all.

I'm going to take the air filter off the carb and give it a really good cleaning and see if that helps at all. Not sure if that could be holding the engine back ?

EDIT: I should add I noticed a build of ice around the covered wires and in diff spots on the bike frame. Could ice or water go into the carb or the engine and mixed with the gas ?

Bikeguy Joe · #2 01-19-2009, 06:10 AM

Could be partially blocking the air filter. The ice could be shorting out the ignition, (dout that though) Did any water get in the engine? That could put a hutrin' on it in several ways.

I would suggest drying everything out, and spraying the electric down with some WD-40. make sure there is no blockage in the air filter, and no water (or ice) in the fuel system.

keep us posted as to what you find.

**2door** · #3 01-20-2009, 04:16 PM

This might sound silly and elementry but, and I'm quoting you here. "However I hit some loose snow and the handle bars twisted around".
Is it possibel you dinged up your front wheel enough to have damaged your bearings...or could the wheel be rubbing the fork hard enough to cause drag?
I know it sounds like I'm questioning your intelligence and no offence intended but people have missed obvious things like this before.
Another thought is the possibility that you have moisture in the magneto cover. Like BikeGuy Joe suggested, dry everything, use some WD-40 and compressed air if available and give it another try. Keep us posted.
Tom

**2door** · #4 01-20-2009, 04:20 PM

Moped,
I Just had another thought. When your handlebars moved it might have crimped or misadjusted your throttle cable. Make sure the slide in your carburator is opening all the way.
Tom

jasonh · #5 01-20-2009, 04:41 PM

Did you just look for leaks, or did you spray carb cleaner in various spots while it was running to check?

Bikeguy Joe · #6 01-20-2009, 04:43 PM

Don't get a hammer out just yet.

Mopedamauter79 · #7 01-21-2009, 05:16 AM

Quote:

Originally Posted by Bikeguy Joe

Don't get a hammer out just yet.

That's gonna get old one day.lol

Mopedamauter79 · #8 01-21-2009, 05:24 AM

I tried it out again. It's a real challenge to get it going cold. I have to keep playing with the lever on the carb. Up and down several times before it will run with the lever all the way down. I'll try to have the lever up as long as I can next time. It's still lacking that overall performance I noticed to. I used to be able to have it run steady at around 40-44km. Now the max it will go on flat land is 35km ? I don't have a carb cleaner but I can pick one up easily enough. I will take the air filter cover off and check to see if the throttle cable is going all the way up like it should.

Oh and I keep the bike inside all the time when it's not in use. So it's dry all the time and I let it sit for a couple days straight before using it again to go to work last night.

Bikeguy Joe · #9 01-21-2009, 09:30 AM

Quote:

Originally Posted by Mopedamauter79

That's gonna get old one day.lol

I have the photo saved on my hard drive.

NEAT TIMES · #10 01-21-2009, 10:22 AM

Moped 79, Are You In Canada?? If It Runs Good, Just Low On Top Rpm, Sounds Like Throttle Cable. Hope You Find The Problem. Ron