Spuds Porting and Tuning Thread

[wisecobandit]

No sorry cant say I do. Meteor give some measurements on there site which may help.

I know they are swappable and useable in the hyway cylinder tho. I may have a spare new windowed piston from a hyway kit but your not overcoming your issue tho however

[wyk]

Looking at them on line, they do seem fairly wide. I will look into cleaning up the old top end tomorrow and see about it.

[wyk]

OK, here she is on her first big cut. This is mostly seasoned Beech, bit of rot at the center as you can see. She is tuned for 13.9K out of the wood. Running a 22" bar, 78 link chain, with an 8 pin rim still. She's not as fast as the 77cc top end, but she still pulls an 8 pin rim with authority.

 

Here's the two compression tests on her warm:

 

30 year old Proto:

New Mercury Outboard Tester:

 

Vid:

 

[jnoon]

SPUD,

 

Thanks again:thumbup1:, heres the video as promised not ideal as its against a 372 not a 550, however the cuts are very similar.

when you are free please pm me and ill send the 372 up for a muff mod.

thanks

 

ps. I hope the video works as its my first vid via go pro.

 

 

Josh

[div_h]

Works fine bud:thumbup:

[wicklamulla]

good stuff.

[wardyc1]

Ive not read the whole thread but have scanned through so apologies if this has already been raised.

how would a potential insurance claim be effected if a wee balls up occurred whilst using a modded saw.

would you have to tell the insurers like if you were driving a modded XR2?

i dont remember there being a 'using a modified saw' section in my insurance application

[burrell_]

There won't be but if ur employing people and one of ur staff get hurt

HSE will look at the saw to make shore the saw is to HSE spec

(A modded saw might be classed as a race saw)

Not fit for a work saw then when the HSE report comes in ur insurance won't pay out leaving u with a big bill or man slorter charges maybe

Big risk to take

If ur using the saw ur self then there ent really much HSE or insurance can do about it

 

 

Insurance company's try to get out of payin out

that was a EG I give u may not be how it would work but if u was employing staff would U take the risk

 

Could cost u heavy

Edited April 23, 2014 by burrell_

[Acg128]

Irrelevant worry IMO. Surely everyone has more than 1 saw.. Should there be claret on the bar and chain wack it on your non modded saw. Not as simple regarding cars with 2 ltr lumps insured as a 1.1 etc.

[spudulike]

SPUD,

 

Thanks again:thumbup1:, heres the video as promised not ideal as its against a 372 not a 550, however the cuts are very similar.

when you are free please pm me and ill send the 372 up for a muff mod.

thanks

 

ps. I hope the video works as its my first vid via go pro.

 

 

Josh

 

Nice vid Josh, pretty much bang on 20 seconds per saw - pretty impressive a 50cc saw keeping up with a 70cc one:thumbup: