[gremlin]

Hi all.

I just picked up a 2001 350es. Kid let it go for nothing, needs a few minor things but it wouldn't start. It is getting spark, and fuel. I used a shot of starter fluid and it backfired. He said this past year it backfired often. He barely had any oil in it, like sad. It does have a bit of compression but not what it should. Not as much as my 2001 250 recon. Pulls over smooth. I'm thinking the timing is off. Thoughts?

 

[ktriebol]

Yeah, either the valve timing is off or the piston or rings or a valve is shot. You'll just have to do some investigative surgery I think.

 

[oldmxrider]

Hi all.

I just picked up a 2001 350es. Kid let it go for nothing, needs a few minor things but it wouldn't start. It is getting spark, and fuel. I used a shot of starter fluid and it backfired. He said this past year it backfired often. He barely had any oil in it, like sad. It does have a bit of compression but not what it should. Not as much as my 2001 250 recon. Pulls over smooth. I'm thinking the timing is off. Thoughts?

On non starting four stroke, I always begin with valve clearance and cam timing check first ! Then move to a quick leak down test if I find NO problems with valve clearance or cam timing.

 

[gremlin]

Thanks guys! That's where I'll start!

 

[shadetree]

my .02's worth. 2001 trx350ES ?, needs a cam chain. wont fire on starting fluid ?, not enough compression, this can be from a few things, timing off, piston rings worn as well as cylinder ?. bent valve/valves from timing chain jumping a tooth or two ?. i'd say its time to rip it apart, and start looking things over.

 

[gremlin]

Ya think so too. The lack of oil, and what our was in it tells me stuff probably got totally gunked up. Suspect there maybe valve stuck also. Only has 5000kms on it so feels like it is worth saving.