STIHL 4Mix Engine Satisfaction

[Scott]

This is an old thread but I am now having problems starting my BR-600.
It starts then shuts off after about 15 seconds. It has new spark plug, air filter and plenty of compression.
What would be the diagnostic steps to follow? Of couse I don't have the manual any more...
It is acting almost like a awitch has gone bad.
Thanks!

Buster,

How many hours do you estimate it has on it? I love my new blower vs the old 400 models.

[buster57]

I don't know. I really have no accurate guess so i will say 250?

I know I should have changed the gas filter last year and this guy gets used if not every day every other day...

Don't get me wrong-if there is something wrong with this blower it is due to user neglact not Stihl. Next blower I get will be another BR-600.

[steve-o]

spark arrestor screen

try taking it out completely and see if it changes anything.

steve

Come again?

it's located in your exhaust. sometimes they get clogged and cause problems. for my echo, i have four screws to take loose to get to it. all the ones i've seen are cone shaped just like the little filters on your washing machine inlets.

steve

[Sandgroper]

For Stihl to have some issues regarding the 4Mix engines is to be expected, but at least they began the venture of designing a new engine long before the EPA deadline...

They began the venture of copying Shindys C4 tecnology

I have a 4 mix trimmer by Stilh, earlier ones had problems with soft valves it was said.

[buster57]

I have both Shin and Stihl trimmers and like them both. I just never did squat in maintenance on the BR-600 and it is coming back to bite me.

[MASTERMOWER]

I've been using a Stihl FS-90r trimmer for nearly a year and it hasn't given me any problems. We service around 80 lawns a week (give or take a few depending on the week)....and use the trimmer for all edging.

Been using a BR600 for much longer, still no problems. In fact the straps need to be replaced. Used for mowing and general clean-up duty.

No complaints thus far....I will be buying another BR600 to add to the army before fall arrives.

[buster57]

He11 I could not find the spark arrestor. Sounds to me like something Steve-o's girl friend had to use on him to keep him from hurting her

I did take the BR-600 down to his shorts and will replace eveything I can before i have some monkey do surgey at $65/hour.

Thanks guys!

[MASTERMOWER]

I forgot, I did have to replace both fuel lines on my br600, but I contributed them cracking due to how the blower is mounted on my trailer. The blower engine bobs around...and I guess that's what caused them to wear.

[Sandgroper]

I've been using a Stihl FS-90r trimmer for nearly a year and it hasn't given me any problems.

Well that gives me a bit more confidence, i brought the same model recently and heard nothing but bad reviews ever since

The only negative thing is that the Auto head does not hold much line.

[snowmaster]

I've got a brand new br600 and hate it. Every time I grab the gas it hesitates, when you pay $450 for a piece of equipment, it sure shouldnt do that.

[MASTERMOWER]

I've got a brand new br600 and hate it. Every time I grab the gas it hesitates, when you pay $450 for a piece of equipment, it sure shouldnt do that.

You gotta break the 4-mix engines in first. Give it some time. You can thank the EPA. :alien:

[buster57]

I think the BR-600 is the best BP blower I have ever used.
Give it some time and it will be a performer for you Snowmaster.