by KE4AVB » Sun Oct 21, 2018 7:53 am
Ultrasonic only use here for these cubes as there are tiny rubber check valves inside these carbs that are not available for replacement most times. Dip cleaners can actually destroy these as if you read the label on dip cleaner it says for you to remove all rubber parts. I actually only use the UC for all my carburetor cleaning now and have since 2014. That is when I gave away my last can of dip cleaner and I haven't a can of spray cleaner in years either. I do clean the exterior of carbs before putting in UC with 2C fuel mix using my air power engine cleaning wand to remove excess dirt and oils
Please note Stihl has propriety agreement now with Zama on the carburetor that Stihl uses and probably has one in the works with Walbro now too making it nearly impossible to get these parts. I just ran into this with a FS-56 that I needed a RB-155 rebuild kit for and Stihl dealer here wanted 3X the price for the kit. This just like the Briggs forcing distributors that sell their parts not to carry any aftermarket parts for the Briggs engines such as air filter and carburetor kits. It same for new dealers as I found reading the dealer agreement when I was looking into becoming a dealer. I still am able to source these parts but is a lot more difficult now as I must buy direct, thru Amazon , or eBay.
And as Luffy said some are cheaper to replace then fool with the rebuild and others are more than the equipment is worth. Those that are costly, I usually rebuild if I am able to obtain the rebuild kit; otherwise, I just send the customer to the dealer which sells a new complete unit if I can't get the replacement carb reasonably priced.
My local JD Stihl dealer is now charging $100 per hour for labor so most of the equipment is simply tossed and replaced. I still get my parts through them but try to avoid ordering them as they hit me with a $20 shc charge if they order them through the Stihl warehouse.
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