Engine wont start

[postysteve]

Don't really know if clutch is slipping ? how do you tell ? to be honest i dont think it is sorry i'm not very mechanical, it's not been run much by previous owner or me so will have to give more runs (now i've got it going again) till it get's broken in . Thanks Steve.

TO (Crazeehorse the mix ix 16-1 for new engines)

 

[Pablo]

Basically if the bike rolls with the clutch lever out and the engine is not turning over strongly, your clutch is slipping. Somewhere posted are the clutch adjustment details.

 

[postysteve]

Can you run it for a good while, ride it a good bit, then check the spark plug appearance?
I'm trying to see if you have an air leak (too little fuel) or if you are running too rich (too much fuel)

Hi, gave it a good run today and it's a lot better today, i've taken spark plug out like you said and have taken a pic wi my moby so you can have a look at it? see attachment. pics not very good colour is like a browny/grey?

when i got home i noticed tiny little air bubbles rising up the fuel pipe from carby wots that all about ?

regards Steve

 

[Pablo]

Color looks sorta OK but, but it's so fuzzy, hard to tell.

Air bubbles usually are from crappy fuel flow. Have you put an inline fuel filter in and got rid of the in tank screen (and got a better valve)?

 

[postysteve]

Hi Pablo, ya i think sparky is ok it's running ok so...... but just to go back on the tiny bubbles?? they are coming "UP THE CLEAR FUEL PIPE FROM CARBY" while engines running not down from the tank ?? just seems weird ??

Regards Steve.

 

[Pablo]

Kinda tells me your tank is not venting or your flow is impeded.

Whilst engine is running and you are watching the bubbles, loosen/remove the fuel tank cap.

 

[postysteve]

Hi Paul, well did wot u said took cap off but seems only bubbles up pipe wen i rev up ? not too bothered really as long as it runs i was just curious as to why it was happening ??

I read somewhere in this forum that someone drilled the hole a bit bigger in the choke as they were having problems starting?

Wen i hav got engine started i have to quickly move the choke slightly open (but only slightly)to stop it stalling do you think i should drill the hole a bit bigger maybe then it might run better wot do you think? or should i just leave it for now with it been still sort of newish ? and see how it goes on in time ?

regards Steve.

 

[Pablo]

Hi Paul, well did wot u said took cap off but seems only bubbles up pipe wen i rev up ? not too bothered really as long as it runs i was just curious as to why it was happening ??

You should not have bubbles. Something isn't right. Your screen in the tank or the valve itself is impeding fuel flow.

I read somewhere in this forum that someone drilled the hole a bit bigger in the choke as they were having problems starting?.

Never heard this. Waste of time. Just open the choke a bit more.

Wen i hav got engine started i have to quickly move the choke slightly open (but only slightly)to stop it stalling do you think i should drill the hole a bit bigger maybe then it might run better wot do you think? or should i just leave it for now with it been still sort of newish ? and see how it goes on in time ?

regards Steve.

This sounds normal. These engines are not at their best when cold.