550XP Poor start and cutting out

[Barefoo Benji]

Hello

I have a 550XP that has started to really give me some problems. 
It takes an absolute age to start, and once running, if you let off the throttle, she cuts out. Then the starting games start again. 
I’ve whipped off the exhaust and there is scoring on the piston, time for a new saw I think. She’s done me well. 
I have two questions.

Is it reasonable to purchase a 500i and use a 20 inch bar for day to day use? I’ve needed something bigger in both cc and bar length for a while. Are they worth the price extra few hundred compared to maybe a 372?

Second question, what’s a reasonable amount of money to advertise her for as spares repair?

Appreciate and replies.

Thanks

Ben

[Ollie_M]

running working 550xp's are on ebay in and around £400 so you might get a hundred quid for it i would say

[adw]

I assume it’s a mark 1, I see these things go on the bay anywhere between £100 and £200, possibly a cylinder clean up and new piston and it could be back on the road.

[Dan Maynard]

2 hours ago, Barefoo Benji said:

Is it reasonable to purchase a 500i and use a 20 inch bar for day to day use?

I wouldn't, big old lump for 20 inch and lot of money, get an MS400 instead or if you're happy husky then maybe try a new mk2 562.