262xp input please

[nipski]

I have a friends 262xp which starts fine and runs well until it gets warm, if you stop it it will not re-start until it is cool. It has a new spark and ht lead, a fairly new magneto, the carb seems fine. I am only really familiar with stihl and would appreciate any ideas as to what it could be. My next step was the air filter. Thanks in advance, Nipper.

[Stubby]

I have a friends 262xp which starts fine and runs well until it gets warm, if you stop it it will not re-start until it is cool. It has a new spark and ht lead, a fairly new magneto, the carb seems fine. I am only really familiar with stihl and would appreciate any ideas as to what it could be. My next step was the air filter. Thanks in advance, Nipper.

 

Low compression . Take the exhaust off and have a look at the piston to see if there is any scoring .

[spudulike]

Low compression . Take the exhaust off and have a look at the piston to see if there is any scoring .

 

Sounds like good advice:thumbup:

[nipski]

Cheers chaps will do tomorrow.

[2stroke-ady]

There was a mod with a carb that had a return to tank to stop vapour locking which caused hot start problems.

[nipski]

The piston looks good no scoring although when I hold the saw by the pull cord it does drop a little quicker than my newer stihls. The carb looks ok and there doesn't seem to be a return to tank that I can see.. Any more thoughts.

[Ray1]

Its got to be compression, whats the inlet side of piston like?

[nipski]

I can't see any scoring on the inlet or exhaust side of the piston. New rings maybe?

[spudulike]

I had one of these where the gudgeon pin had worn in the piston and made for loads of play and caused low compression.

 

I would measure the compression but failing that, if you are stripping it and it has had "a life" then fit a complete piston - preferably a Meteor one, the one I did was sweet after I fitted one.

 

Check the plating in the cylinder is OK before ordering it though!

 

You can check for vapour lock/blocked breather by loosening the fuel filler cap and seeing if it clears the issues.

[nepia]

fit a complete piston - preferably a Meteor one, the one I did was sweet after I fitted one

 

...still is... as a nut. A luvverly saw.