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Joined: Apr 2009
Posts: 42
Novice
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Well, I went outside today to start on the Ryobi engines again. One is nearly impossible to pull the starter cord. This is an engine I had apart two days ago. I fitted new gaskets, cleaned the carby (without installing a kit), and tried unsuccessfully to get it started.
What could be causing the pull start to be so stiff?
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Joined: Dec 1999
Posts: 5,384 Likes: 34
Repair Junkie
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It sounds like the cylinder flooding. Check the cylinder for excessive fuel by removing the spark plug. If you a lot of fuel then you have caused the problem when you reinstalled the diaphragms. We will have a step by step workshop manual in the parts list and manuals area of the forum in both the brushcutter and chainsaw sections which will be uploaded in the next two days. 
Regards, ![[Linked Image]](https://www.outdoorking-forum.com.au/forum/images/members/mower-monsterw.jpg) Bruce Please do not PM me asking for support. Post on the forums as it helps all members not just the individual.
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Joined: Apr 2009
Posts: 42
Novice
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Thanks, that was it alright. Bruce, I have at least 1 Zama carb. Is there a kit for those, like for Walbro?
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Joined: Dec 1999
Posts: 5,384 Likes: 34
Repair Junkie
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Yes they will be in the online store in the next two days.
Regards, Bruce Please do not PM me asking for support. Post on the forums as it helps all members not just the individual.
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Joined: Dec 1999
Posts: 5,384 Likes: 34
Repair Junkie
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Thanks, that was it alright. Bruce, I have at least 1 Zama carb. Is there a kit for those, like for Walbro? What is stamped on the carby (it should have C1U-P6A). Let me know so that the correct kit can be uploaded to the shop.
Regards, Bruce Please do not PM me asking for support. Post on the forums as it helps all members not just the individual.
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Joined: Apr 2009
Posts: 42
Novice
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The Atom has a Zama carb: C1U P10A 69P
Ryobi engine #1 has Zama carb: C1U P10A 750
I think both of those are covered by the Zama GND-18 kit.
I notice there's none of the metal bits I see in other kits. Some kits seem to have heaps of extra parts other kits don't. (Haven't worked out why yet, LOL.)
The next two I cannot find listed in any of the Walbro kits.
Ryobi engine #2 Walbro carb: 819 WT454
Ryobi engine #3 Walbro carb: WT148A
Also have a Walbro carb on the Tanaka AST-5000 trimmer. It's working fine at the moment. I was just looking for future reference. The parts catalog I downloaded states it is part #: 650-25108-910. But that doesn't help find a kit for it - and there's nothing else (I could see) stamped on the carb itself, apart from the Walbro brand.
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Joined: Apr 2009
Posts: 42
Novice
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Bruce, when you get a chance, could you please check my "Anyone here own an auto-start Tanaka thread" for a followup question I had? Thanks...
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