Fouling plugs 84 250r

[ivan-083]

Hey guys I have a 84 250r that keeps fouling plugs. I have just put on a DG full exhaust system on it and using 32:2 fuel ratio.
Do I need to change my fuel ratio or would it be jetting issues? Please help, want to enjoy riding my tribe but can't.
Any advice would be great.


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[efhondakid]

What oil are you running? I ran crap oil at 44:1 and fouled plugs I switched to klotz super techniplate and run it at 40:1 and haven't fouled one in probably a year.

[ivan-083]

I am running motul synthetic oil with 32:1 ratio! Iam in Australia and the oil is sposed to be really good.



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[350for350]

Did you jet properly for your oil ratio and your exhaust? My 350x would burn out a plug once in a while. The main jet had the right number on it, but it was still too small. I got the same size from my local dealer, and I could see by holding them side by side that the one from the dealer was larger. I put that one in and no more problem.

[yaegerb]

Your jetting is off or you need a set of rings. You need to perform a compression test to rule out rings.

[ivan-083]

Thanks guys


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[ivan-083]

It was my reeds


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[Ghostv2]

I just did like a 35 mile poker run a couple weeks ago and run 40:1 klotz staying in first gear mainly going slow and didn't foul a single plug. Same plug since I heat cycled it this winter. If you are fouling plugs for no reason it's time to run through the list of all possibilities. Glad you found out the problem though, I wouldn't of guess reeds right away.

[ivan-083]

I just did like a 35 mile poker run a couple weeks ago and run 40:1 klotz staying in first gear mainly going slow and didn't foul a single plug. Same plug since I heat cycled it this winter. If you are fouling plugs for no reason it's time to run through the list of all possibilities. Glad you found out the problem though, I wouldn't of guess reeds right away.

I changed the stator, put on a new intake rubber, new carb kit with jets! Still wouldn't start, checked the reeds and flipped them over and started straight away! Did about 2 turn out and went good! Reeds were worn, so ordered a set and putting them on tomorrow!


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