Chainsaw Repair

This 550 has WJ with a governor built into carb. I bypassed it though with a bb. 

My complete gasket kits came with seals in it.  I've bought several over the years and they all did too. I'm down to 1 or 2 and I have a 490 to split to put crank bearings in. But I may never with that saw.  Been stealing from it over time. There is no top end and other misc stuff missing now.

First P70 I have seen woods ported. Looking good.

http://www.youtube.com/watch?v=XuE_XUoG1NM

I have both ported and non ported P70 and 7000+, P70 has the T-port the 7000/and plus do not. Plus is harder to start and I find No difference in power. My best one is a low hour P70 with T-port ported, it pulls with anything out there today!
K650/700 cylinder has larger ports and a wider intake track, is the best but NOT THE OPEN PORT Chinese, can't quite get a BOG outta the two I put together?? might be a timing issue but K series flywheels wont fit  chainsaw cases. lost interest in that combo decided to stick with P70's

Side note: my old small cooling fin 65cc Farmer ported (bridged intake/exguast) is just as fast if not faster than my ported P70's, I compared it many times!!!! has alot higher compression ratio and you feel it when you pull it over.

Duane

I believe I have run that partner.

I have both ported and non ported P70 and 7000+, P70 has the T-port the 7000/and plus do not. Plus is harder to start and I find No difference in power. My best one is a low hour P70 with T-port ported, it pulls with anything out there today!
K650/700 cylinder has larger ports and a wider intake track, is the best but NOT THE OPEN PORT Chinese, can't quite get a BOG outta the two I put together?? might be a timing issue but K series flywheels wont fit  chainsaw cases. lost interest in that combo decided to stick with P70's

Side note: my old small cooling fin 65cc Farmer ported (bridged intake/exguast) is just as fast if not faster than my ported P70's, I compared it many times!!!! has alot higher compression ratio and you feel it when you pull it over.

Duane

Hmmmmm??

When the P7000+ came out, they said there was a 15% power boost over the P7000, to 3.5 kW....

According to specs it wasn't 15%, but still over 10%, from 3.1 to 3.5 kW.