My bike is a DOG AND A PIG, It is ****ing me off, anyone know some other methods?

[Bonefish]

Bike is still in the break in cycle, and running the fuel/oil mix at 16:1. It now has 225 miles on it. It has hardly any power and is eating gas like there is no tomorrow. It has been like this from day one. Changed spark plug to NGK. Cleaned spark plug, Cleaned out Mufffler(looked good, not much oil), put the e-clip in the second postion from the top on carb. Just fustrated, It revs well when there is no load on the engine(clutch lever pulled in) but when it has a load on it and the wheels are in motion, it lacks power, has very little torque, wouldn't probably hit 20 mph. It fluctuates and has no consistancy or smooth throttle acceleration. Any suggestions or ideas would be apprecaited, Im at a standstill on what else i can to to make this puppy run like she should. The things she does well is, starts, She starts with no problem, and idles well. That is about it.

Thanks,

 

[biken stins]

Check filter.
Is the carb slide going all the way down or sticking ? Adjust cable.
Take a look at the carb float. May need some tweaking.
Then the needle will need to be reset.
Good luck

 

[srdavo]

have a look at this thread, for ideas.....

http://www.motoredbikes.com/showthread.php?t=20943

 

[Mountainman]

sorry to hear that -- with such a new engine

as said above check carb
compression check just to make sure things are up to par in there
spark strong ? gap correct ?

MM

 

[Bonefish]

Im at wits end, tried everything i could find in previous threads. Picture of ride.

Im pulling hair out and about to throw bike off of a bridge.

This is what i have tried to solve the lack of power/torque problem i have. The bike is very sluggish and will not go over 20 mph. It has 230 miles on it in the break in cycle mixed ratio of 16:1

1 New plug NGK, nothing
2 opened carb. checked jett. tight not loose,
3 cleaned carb.
4 cleaned carb filter. (was oily but didn't make much difference in performance)
5 sealed intake port openings where the clamp is at with silicone to prevent air comming in. nothing improved
6 ran bike with carb filter off. nothing, still boggy and lacks power
7 ran bike with muffler end cap off, loud as ****, sounded fast but still lacked power.

Here is a pict. of my Bike. I have the rack on the back to carry an extra gallon of gas and to carry my backpack with laptop in it so my back doesn't get sweaty.

<img src ="http://i199.photobucket.com/albums/aa178/bonefish1855/DSC03186.jpg"

or

copy and paste:

http://i199.photobucket.com/albums/aa178/bonefish1855/DSC03186.jpg

Thanks for those who have helped, i have been riding a bicycle for 3 years everyday, never driving a car for that period. Pedaling over 5,000 miles a year. I now have this MB and all these problems. It is my only mode of transportation, so i appreciate any help you can give, because i ride this thing everywhere.

Thanks,
Aaron

 

[misteright1_99]

What does your plug look like? I would try leaning the fuel/air ratio to 25:1 or 32:1 with a quality oil and fresh gas. Might also have to change the needle clip setting.

 

[srdavo]

What does your plug look like? I would try leaning the fuel/air ratio to 25:1 or 32:1 with a quality oil and fresh gas. Might also have to change the needle clip setting.

I am sure you mean the fuel/oil ratio.

16:1 is mighty thick..... I agree.... 25:1 would be a safe fuel/oil ratio, now.

 

[Bonefish]

Thanks, it looks a little charred, with some carbon build up, but not that bad, I cleaned it. reinstalled it, Tried running some Marvel Mystery Oil in the with the gas mix at 16:1 on this last run because i blew my last engine i got from BGF. It had less than 300 miles on it as well so I have been treating this thing like a baby, but it is turning into a red headed step child.

The engine i got from BGF had balls, it was a rocket ship and had lots of torque and power, before it blew. i noticed this engine i have now doesn't have the slant head but it still should be performing better than it does now. this engine i have now i think is an older model i got from a different supplier that had about 25 of them and sold out quick. It is a heavier engine and the hardware that came with it is better hardware.(screws/bolts) so I kept the engine from BGF as a extra parts engine kit, and have been building this bike using the best parts from both kits.

The bike had large ballon whitewalls on it, but i had to put skinny tires on it for now because the chain ate the sidewall out. It looked sweet with the whitewalls on it. I hope i can find some 26 X 1.90 whitewalls to replace the original 26 x 2.125's

Thanks about the suggestion with the changing of the oil/gas mix. Im going to do that after i hit the 300 mile mark, like the break in schedule says, so i don't blow another engine. I always ran the BGF engine with 16/1 though, not sure why it blew. Some guy told me they were throw away engines, so i just bought another one. Hoping that i don't blow another one. This one doesn't seem like it is going to blow, the exhaust pipe didn't even discolor like the BGF engine kit did. So it is not running HOT.

Anyhow, I'll be ridding it everywhere and should hit the 300 mile mark soon and then wean it to a less oil blend, and hopefully that will solve the problem. I'll update the post after i hit the 300 mile mark and change the oil/fuel blend.

Thanks for your time,
Aaron

 

[misteright1_99]

I am sure you mean the fuel/oil ratio.

Yes I did.

Thanks Dave...........

 

[Skyliner70cc]

32:1 is all you need. 16:1 is crazy rich oil mixture and not necessary. I hate to say this, but I have one engine that is like yours. It runs smooth but has no ooomph even with new rings and new head.

Couple things you can do:
1. check intake to ensure gasket is not partially restricting intake air.
2. Pull head. Bottom gasket on the jug is often cut too big and restrictive of the ports.
3. Pull inline fuel filter that is part of the fuel switch. It often clogs and restricted fuel flow can cause power loss.
4. Ensure head bolts are tight. Loose head bolts can cause power loss.
5. Try a new muffler. some of these cheap newer mufflers are overly restrictive. I ahve a box of mufflers that kill engine power.