Spuds Porting and Tuning Thread

[spudulike]

Just wanted to say that I have sent spud aka Steve 4 saws over the past few months in various stages of disrepair and he has worked wonders with all of them and is very reasonably priced too, not to mention honest about what's worth fixing and what's not. If anyone is fed up with sub standard repairs from local dealers like I was then I would highly recommend paying the £8 or so postage and sending your saws Steve's way. Should be on some sort of commission here maybe ??!!

 

Thanks Alan, much appreciated and always glad to help, yours was a horror story but was good in the end, just needed someone to start at the beginning and sign off when all was put to bed:thumbup:

[spudulike]

I will second this statement all day long ! Steve is a top geezer and no mistake . An engineer by trade and a good crafts man . He has ported my 346 , 372 , and 390 . . All 3 are totally reliable and perform way above the standard saw that they were .

 

I am feeling a bit humbled now, glad you are happy with them, that 372XP was a bit of a beast:thumbup:

[spudulike]

Did a comparison over the weekend both with standard new 15"64DL chains and the ported one is definitely quicker... Around 2 secs in 20" timber but it's close in small stuff.

I went in to my local dealer and he was kind enough to reset the auto tune and gave me some read outs.The high jet was over 100 and the low around 34 , no idea what this means !! He said usually they over compensate for an air leak so that could be the case although the port work obviously requires more fuel.

Back to work with it this week felling Sitka averaging 90ft the 560's just eat this stuff but the ported one was my go to saw , you could really feel it snedding out and dressing timber until as a typical 560 trait the rear anti vibe gave out and I retired the ported one for my usual work saw and it will have to wait until I go in to town at the weekend for a new one.

All in all though it was worth doing, I would like to at some point Change the carb mount incase there is an air leak as it can be the only place it's coming from if there is one but the saw seems to be getting stronger as the new piston ring breaks in.

Top job Steve and thanks again.

 

Thanks Matt, glad it is working out and should get stronger as time goes on. No idea what those figures mean, sounds like my blood pressure or lack of it - it is as low as it can go:lol:

[eggsarascal]

I am feeling a bit humbled now, glad you are happy with them, that 372XP was a bit of a beast:thumbup:

 

Get ready to feel a little bit more humble:biggrin:

 

Mrs Egg dropped my saw off at Steve's place last Wednesday, he kept in contact through out and messaged me on Saturday to say the saw was repaired. I picked it up yesterday. I've used the saw today and it's running fine.

 

Nearly forgot to say, the repair was cheaper than Steve estimated originally.(probably shouldn't have mentioned that)

[Eddy_t]

Oh god, his head won't fit in his workshop soon!

[spudulike]

Get ready to feel a little bit more humble:biggrin:

 

Mrs Egg dropped my saw off at Steve's place last Wednesday, he kept in contact through out and messaged me on Saturday to say the saw was repaired. I picked it up yesterday. I've used the saw today and it's running fine.

 

Nearly forgot to say, the repair was cheaper than Steve estimated originally.(probably shouldn't have mentioned that)

 

Thanks Eggs, glad it was all good:thumbup:

[spudulike]

Oh god, his head won't fit in his workshop soon!

 

I just get the job done Eddie and let the customers do the talking, no need to be an arse about what I do........empty pitchers as the proverb says:lol:

[Eddy_t]

 

 

 

I just get the job done Eddie and let the customers do the talking, no need to be an arse about what I do........empty pitchers as the proverb says:lol:

 

 

Haha, you're bloody good at it too! Learned most of what I know off your other thread.

[TGB]

Oh god, his head won't fit in his workshop soon!

 

 

He can just shave a bit off the entry, then get a closer shave with shorter haircut. Though he may want to draw the line, at just the original exhausts

[spudulike]

This weekend, I have been mostly porting a MS150, I would usually just stick the hole in the exhaust but this one wasn't running and the local dealer had said the bore was scored.

 

Admittedly, there was a bit of brown residue on the piston but it looked in good shape:001_rolleyes:

 

Stripped it down and it is TINY, I had to use the smallest diamond bur on it and be VERY careful not to go to far. The squish on the saw is tight so not much to be changed here.

 

The exhaust port was widened, the inlet port was lowered and widened significantly, the upper transfers swept back a little and the lower separator rounded slightly.

 

The ignition was advanced and the exhaust drilled.

 

It sounds a bit angry now and picks up a bit fast.

 

I am still playing with carb settings but I can now lean on it a bit without it bogging down in the cut.

 

Early impressions are good:thumbup: