carb jetting
- Thread starter lovelady602
- Start date
That is the second to richest clip setting.
The plastic washers go back the way they came out.
The plastic washers go back the way they came out.
Don't forget those plastic washers. You'll go nuts with jetting if you forget those and/or your main jet washer.
^forgot to hit send lol.
Now you're on to the right track. See, you have learned something here, haven't you? lol
^forgot to hit send lol.
Now you're on to the right track. See, you have learned something here, haven't you? lol
So I got my jet changed to a 300 needle on 2nd to richest runs allot better with the mods can't wait two send it off to get ported from what I read it is suppose to double the hp don't know if that's true or not but I'm gonna try thanks everybody that helped on this project here's a pic of a trick that I thought would help with that long spring in carb
Attachments
Porting, head mod, pipe, and filter will double what Yamaha claims stock is.
/\/\ /\ I would run that too, but would prefer to run just one size larger. #310.
So now that I got all this done I am moving to lower elevation I will be at about 700 to a 900 asl do I need to rejet ???
Lower elevation = larger jet.
You may need to also take into consideration temp changes as well.
Lower temp = larger jet.
Always plug chop to perform!
You may need to also take into consideration temp changes as well.
Lower temp = larger jet.
Always plug chop to perform!
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I have after market headpipe and exhaust and im getting the jug bored .060 over what do you recommend for a jet size. I bought it from a guy who had it bored .040 over with stock jets and it burned a hole in the piston. He told me that all the work was done right but when i pulled the jet it still had the stock one in it. What would you guys recommend. Oh it also has a kn filter with no lid on the air box.
If it was stock jets with an aftermarket exhaust it was WAAAY to lean. does it use the oil injection or do you pre mix?
If you do not pre mix I would start with a 300 and plug chop to confirm. If you pre mix I would start with a 310.
If you do not pre mix I would start with a 300 and plug chop to confirm. If you pre mix I would start with a 310.
