1000 miles, had fun, SEIZED

c3po

New Member
Local time
7:39 PM
Joined
Nov 16, 2009
Messages
5
Hello all,
I love gas bikes.
I was just about to embark on replacing the chain sprocket bearing (lots of play) this up coming week.
I noticed that the motor made more of a rattle, and more metalic noise, it seized up finally.
THE QUETION IS: did i abuse this motor?? most likely............... i did have it full throttle most of the time, went down long big hills full throttle, rpm'ed to the max, has anyone any experience in how to get the most life out of these motors. should i have limited myself to about 20mph.

the motor was cheap, 115$, boygofast, with standard rear sprocket.

thanks all

John
 
Sorry to hear about it.

I"ve heard that full throttle on downhills is an engine killer. I can't explain why because I just don't know that much about their workings.

But that might have been your mistake.
 
whats done is done

time for a new motor or a motorcycle!!

Hello forum!!
anyone out there with a suggestion for a better built motor than boygofast brand, these guys are super cheap 110$,

are there better built motors that i dont know about,
aslo, these motor sellers advertise needle nose bearing etc. Whats the deal?

John
 
In my opinion a older bushing engine is hard to beat.
I have a Original kings bushing motor. Luck of the draw !
A lot of people have tried to buy it.
I am still running strong after many thousands of miles on a kings bushing engine.
The needle bearing engines sound good until you find out that the bearings are made of beer can metal.
Some people claim to have substituted QUALITY sthil bearings for the Chinese cheap o needle bearings.
But there are no sources of these bearings published ?

Chris hill or Manic Mechanic.
If you can afford the upgrades.
Both sell upgraded happytime kits.

A ddm gp 460 is a good start to a better motor. But it is only a motor, not a kit.

To find out more about a gp 460, just search for detonator tuning solutions.

Going wot down hill on a happytime will kill it.
With a gp 460 engine the following applies.
Most people myself included don't like going 60 plus mph down a hill that usually has an intersection with a stop sign at the bottom of the hill.
 
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Sorry bout your luck c3po and now after reading spad4me's reply, I am wondering about the reputation of the reliability of the Grubee 2 stroke motors? They advertise " high quality needle bearings" Anybody know about the Grubees reputation?
 
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witch one is the better quality motor...the Grubee 48 cc Gen 2 Starfire or the newer one that replaced it ..The Grubee 48cc Skyhawk???
 
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chevy 350

I decided to go with a more reliable motor than the grewbee or the boygofast or even the other motors out there, I am going to surgically transplant a chevy 350 motor onto my bike, I must say the motor mounts will be tricky and the tire pressure will have to be taken up a notch.


just kidding.........:)

the truth is, the next motor I put in, I will not beat up by overreving f.o.t. all the time, the way I was driving would kill any motor. So I will take it down a notch, and maybe also buy an enduro motorcycle. But nothing beats a gas bike!!! People go nuts when they see it.

If I do come across a bullet proof motor, I will spread the word

thanks all

John
 
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