Starting your bike (MUST READ)

[dan-mel]

With more and more people getting hi-compression big capacity engines I thought I better make a thread so people don’t go wrecking there engines.

Its mainly a problem with:

Lifan 140
YX Motorsport 140
YX Motorsport 150
And other engines with HI-Comp pistons

If you don't do it like i say you are in great risk of bending/ snapping the kick-start shaft or stripping the kick-start sprocket which can lead to bust bearings, cracked cases and a load of other problems as well as having to change the kick start sprocket/ shaft.

I know of quite a few people doing this and blaming the engine been bad, when its really there own fault.

Bike in neutral

Slowly push down the kick-start till it gets to the point where its very hard to move, this is the compression stroke of the engine.

Now slowly push it through this stage till it sort of clicks, this is when the exhaust valve has opened and piston is starting to go back down.

Now take the kick-start right back to the top and do a full kick and the engine should fire up.

If it doesn’t then repeat this.

It only takes about an extra 10s every time you start your bike but its is vital for the life span of your engine. :thumbs:

[haveagoade]

....good for the lifespan of your engine.....and keeping your shinbone and ankle attached to you leg as well:icon_lol:




..........GOOD POST:thumbs: gonna sticky this.

[hawksbmx]

Nice Post :thumbs:

Thanks Dan :thumbs:

[matt132006]

what i would do if your engines new is bump it till it run in:thumbs:

[hawksbmx]

what i would do if your engines new is bump it till it run in:thumbs:

So which ways better :confused:

[Despise]

what i would do if your engines new is bump it till it run in:thumbs:chatting ****, it aint about running it in, its about kickstarting. what you going to do bump start it all your life:roll:

[Tommy brown4]

Lol how do you actually bump start a bike ? I never done it tbh

[stomp125]

roll down a hill with the bike in neutral jump on the bike and put it in gear (using the clutch aswell) and the wheel turns in gear and starts the bike:thumbs:

[darren]

or have it in gear run down a hill with the clutch in jump on and let the clutch out

[Tommy brown4]

Ahh ok hehe was just wondering :p

[matt132006]

chatting ****, it aint about running it in, its about kickstarting. what you going to do bump start it all your life:roll:well it a lot tighter b4 there run in n hows it chatting ****? just trying to help

[haveagoade]

BUMP STARTING will wear your clutch out.....don't do it!!

[tom racing]

Yup take it from me people, i wrecked my first lifan engine, what happens is you get a snapping noise and basically the teeth snap of the cogs on the kick start, the teeth get inbetween two cogs and prise the engine apart which cracks near the bearings, not a funny situation when you find out whats happened and that you cant do anything about it!... But i was lucky and got another engine thank god.... But ime just very careful now and do exactly what dan-mel says:thumbs: ......

tom..

[Despise]

well it a lot tighter b4 there run in n hows it chatting ****? just trying to help

what i would do if your engines new is bump it till it run in:thumbs:

my point right there

1. what are you gaining by bump starting it till its run in? cause its going to me tight however you start it
2. why cant you just kick it lol, it aint much of a deal believe me :)

with all my bikes/engines over the years I use the same method. feel it. usually go down slow to do one compression then bring it back up and kick 2nd time, dont kick it from the very top kick it at the compression otherwise you could break it.