7 replies to this topic

[Jamitz]

Hello, its my first post here so apologies if its in the wrong place.

 

 

First of all i bought this mini a couple weeks ago. first problem was the engine steady bolt fell out and smacked the jet assembly to a 45 degree angle. so i got a new bolt and jet assy fitted them.

 

 

Now the problem is it just wont start. i think the problem is the fuel isnt getting into the carb but i am not sure why. the reason i think its fuel related is if i spay a bit of easy start in the air intake it starts up for half a second.

 

ive changed gaskets and when i have the carb out and blow on the fuel inlet i can hear it getting past the jet assy.

 

any info i have left out let me know and thanks in advance any help is appreciated.

 

[cal844]

Sounds like it simply needs a reset

[Vimes]

I'm a newb/noob here too (serial lurker).

 

Have you tried disconnecting the fuel line from the carb, put the hose in a bottle or jar and turn the engine over - if a bit of fuel comes out then the pump is working OK.

[unburntfuelinthemorning]

Always worth checking fuel delivery as above.  Did the needle get bent as well as the jet?  It could then stick in the jet.  Does the dashpot piston move up and down freely?

[Jamitz]

cal what do you mean by reset?

 

also yes the fuel pump is working properly i checked that.

 

needle seems perfectly straight, and yes the piston moves freely.

 

however i have noticed the piston damper i think its called, has no sucktion so i think theres an air leak in the carb somewhere.

[cal844]

You need to check the emissions and reset the jet and needle.

The needle collar needs to sit flush with the base of the piston, you'll also want to make sure that it drops smoothly.

What Oil is in the dashpot?

[Jamitz]

i think ive found the cause. the inlet manifold has a big ol' crack down it where its been snapped when the engine smacked against the frame. i wil change this and let you know.

[unburntfuelinthemorning]

Nasty, that won't have helped! 

 

Make sure the top stabiliser has spring washers under the head of the bolts to stop them falling out again.  Sometimes when they come loose the bolts can snap flush with the block which is really annoying.