Ferret top end speed......oh dear, oh dear, oh dear

[MiketheBike]

lesson #1:

If after correcting everything you can think could be wrong, go back to basics.

 

OK, so there were quite a few things wrong that could make my Ferret have poor top end performance.

1. The Altitude setting on the carb was stuck at 6000ft....fixed

2. Carb was full of crud....dismantled and cleaned

3. Carb pump assembly diaphrams perished....replaced

4. Fuel pump leaking petrol into oil....replaced

5. Two spark plugs were duff....fixed

6. Timing way off...adjusted by ear

7. Tyres running between 4 and 6 psi....pumped up

 

I still want to check the timing (although I cannot seem to be able to find the timing marks on the flywheel), but today a revelation, and the Ferret almost flies....back to basics Mick!!!

 

I checked to see if the carb was opening up correctly...linkages all nice an free at the carb....press the accelerator pedal...only about half to two thirds of full movement at carb.

All the bolts holding the linkages down on the floor in the footwell were a mile too long, so the mountings were moving. Removed and shortened bolts...hey presto.

It was kinda deceiving, because when I pushed the accelarator linkage to full travel at the carb, I could see the pedal move OK, and hit the stop on the floor. Its when the pedal was pushed (with a broom so I could see the carb) that the penny dropped.

 

:whistle: :whistle: :whistle:

 

Thanks to you guys for being soooo patient with me.

 

Mick