I got a little ripper Makita RST210 from Bunnings back in Feb.
Started so easily four or five prime pumps then first pull every time for two months then....
I recall its idle suddenly increased once choke was off - I backed off the adjust screw to sort that.
Now, may be coincidental that since about then it won't start until about the fortieth pull
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First suspected cause was thought to be seasonal - ie COLD !
But, there is a youtube of one starting in the snow 3rd pull - someone else is happy.
See very bottom of post for youtube clip link for Sams sake
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review Makita RST210 search google not happpy customer bad, naughty Makita RST210 from Bunnings
Maybe naughty operator for adjusting too fast idle ??
er, just a few key words in case anyone doing a google search review.
If I spray start ya bastard by nulon, aerostart by aerostart or even CRC556 into its carby - starts first pull but then stops as fuel not kept up to it. Ten goes like this will get it running.
This is the basic any engine diagnostic way to see if it is spark of fuel issue. Says either fuel, or as waranty repair guy sayas "operator issue"
When choke is on, the throttle is stepped up a notch for increased speed, yet as not throttle plate there is no choke plate either. man says the choke lifts the rotary throttle up - I see it held open more than standard idle position.
When choke thing is on, I cannot see a direct link to what holds speed up. Repair guy says it lifts the roatry throttle up. ? .
So...who unnerstands the rotary style throttle carbies not a butterfly valve throttle. As you pull throttle cable, round piston like thing opens up for air to breathe in.
The choke is a simple spring assisted red push button that holds throttle open _ I do not think or see the idle screw adjust has any effect on the opening position.
Depending on where and what you read, this unit has one or two year warranty. Think mine was one year home and/or commercial use which is encouraging.
Have read Robin makes the engine, Robin by Subaru/ Fuji ??
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Have only ever used clean 95 fuel and Stihls 50:1 oil mix, checkd with Makitas 1300 number to confirm it is acceptable - it is. They also claim that the string cord is 2.5mm yet the cord that came with it was only 2.0mm by my verniers
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Makita have supplied me an authorised repairers name, dropped around to talk to them. Explained last time they sent me to an authorised Briggs & Stratton agent I was near robbed as they went ahead without authorisation on non warranty work _ I put my mower in for warranty
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I do not want a bill to 'repair' my snipper that is under 'warranty'
Being told it will be warranty if it is found to be a manufacturing fault for my no start. The minmum is $45 for 30 min consultation. New snipper is $199 - see my torment ?? Warranty can be worth a turd some times!
I have found out:
1.0 with the primer bubbles - the fuel is circulating from tank to carb and back to tank so can never flood the carby with the primer bubble no matter how many times you pump it!
2.0 with the choke on, you can flood engine if left on for more than 4 starter cord pulls - so verbal instruction was try let choke off if not started in 4 pulls, then continue trying
3.0 Pull #41 can lead to a torn neck muscle feeling - momentarily crippling me
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4.0 double the elbow clearance distance coz it effin hurts when elbow contacts solid object - even five days later
5.0 I am ready to jump on it like I did with my Ryobi that did not deserve it after 18 years lotyal service.
It has spark, the CRC proves that
It does not appear to have any filters at the ends of the fuel pick up - might be wrong.
Once it starts no problem - runs like it did first day
Don't get me wrong - this little 21 cc engine has some amazing power and response and power figures displayed on its tag and that off twice the price four strokes nearly on par, but way lighter.
When running it is a little pisser, a little ripper, rave review for the Makita RST210 that seems to be a Bunnings only model or online or Gas Weld too. Were $239, most have dropped to $199
Does anyone understand these carbies ??
Or, someone like resourceful Jules find a guide to these carbies in set up, repair, exploded diagram etc, tuning tips - steppy'd be so greatful
I am think instruction is something like use a certain size/number drill to measure the rotary throttle opening at idle or at choke on or the like
As it is 'under warranty' reluctant to have to touch it but at the mercy of the trusted repair guy to find a 'manufacturing fault' as the cause.
Hey, I've already touched it, may as well touch it again
Have ensured always get clean fuel 95 and its mix ratio correct, would have running issues not starting issues .
Have emptied out fuel and started again with fresh fuel oil mix.
Just seems to be not right fuel air mix on choke for th colder air temps ??
Just one gripe on its construction is the basic old foam donut air filter - mind you did my Ryobi no problem in 18 years - I suppose I just like the Stihl filter pad idea .
http://www.youtube.com/watch?v=aCiw7u1XhSg