Jump to content

Log in or register to remove this advert

Spuds Porting and Tuning Thread


spudulike
 Share

Recommended Posts

Log in or register to remove this advert

  • 3 weeks later...

Been working on an 064, the owner fitted a 54mm cylinder and piston after the original went pop (52mm). My strategy is to always salvage the OEM cylinder where possible.

 

I got the saw in, it was over revving on idle but more importantly, it would pull a 20" but that was about it. I checked the compression and it was down to around 100psi so surprised it even worked at this. It is one reason why I don't tend to like cheap Chinese kit, it can be suspect!

 

I have now got the OEM cylinder sent by the customer, it cleaned up well, I have ported it and expect a vast improvement in compression and power, ported 064s tend to pull pretty hard:thumbup:

Link to comment
Share on other sites

The 445 is a clam engine and stripping it down to port just adds a thumping lump of cost to the job so a muffler mod would be the simplest option.

Would you be able to give me any pointers on that one? Not done much engine with other than to get my ticket, but I'm a quick learner! :-P

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share


  •  

  • Featured Adverts

About

Arbtalk.co.uk is a hub for the arboriculture industry in the UK.  
If you're just starting out and you need business, equipment, tech or training support you're in the right place.  If you've done it, made it, got a van load of oily t-shirts and have decided to give something back by sharing your knowledge or wisdom,  then you're welcome too.
If you would like to contribute to making this industry more effective and safe then welcome.
Just like a living tree, it'll always be a work in progress.
Please have a look around, sign up, share and contribute the best you have.

See you inside.

The Arbtalk Team

Follow us

Articles

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.