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Spuds Porting and Tuning Thread


spudulike
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13 minutes ago, mitchel said:

how fast does it cut?

Up until a few weeks ago, the ignition timing was wrong so not well but got it set to 30 degrees and should go a lot better now. Carb tuning is weird and think the expansion has had a fair bit of effect but need a big lump of timber to try it on now!

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8 minutes ago, wisewood said:


Excellent, so what did you alter?
Is a basic exhaust mod worth doing or are we in the realms of advancing the timing?

Widened the ports, dropped the base gasket and opened the muffler a bit - didn't want it too loud, neighbours wouldn't like it!!

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Widened the ports, dropped the base gasket and opened the muffler a bit - didn't want it too loud, neighbours wouldn't like it!!

That sounds beyond my mechanical skills lol, I was considering a muffler mod but if it’s going to need a full port to make any real gains I may have to pass it on to the expert.
can you pm a price please?
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TBH, the cost of doing the work probably outweighs the advantage and will be a large percentage of the new cost of the blower. The Echo blower probably has a CAT in the exhaust, drill it to bypass the CAT and retune the carb - should get it going better.

Thanks spud, appreciate all your comments mate[emoji106]
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