[tpar1220]

i pulled carb on my 07, drilled slide, shimmed needle and went up one size on main jet. the lil beast spins up and pulls harder than before. the gain is noticeable. only problem is.... now when motor really starts to pull, the clutch won't hold it. don't think it's oil related, it's non synthetic and always fresh. cable is adjusted properly as well, even loosened it up so far as it walks a bit when stopped.



any idea where to get slightly stiffer springs?

 

[Turtle Chaser]

Just for the record how many miles are on it and what oil are you using (weight, type,brand) ?

 

[catamount]

I would add that we've had several people re-jet and shim their needles without having clutch issues.



One thing to check -- when at rest, does the clutch arm on the left side of the engine case line up with the hash mark on the engine case itself?



If not, the service manual specifies how to re-align the two.

 

[tpar1220]

i got it worked out, after seeing a pic on a different thread. apparently the spring on clutch accuating arm coming outta case doesn't get attached properly on some bikes from factory.after seeing that i went out to check mine and sure enough it was under arm instead of attached to it. so arm never released fully. i dug it out and re attached it and no more slipping!



runs great....



btw.... bike has just turned 2,000 miles and i run rotella 15 40 in all my bikes with no issues. klr650,husky te610, dr350, cm400a..... never a problem with rotella.



thanks for help...

I would add that we've had several people re-jet and shim their needles without having clutch issues.



One thing to check -- when at rest, does the clutch arm on the left side of the engine case line up with the hash mark on the engine case itself?



If not, the service manual specifies how to re-align the two.

 

[catamount]

i got it worked out, after seeing a pic on a different thread. apparently the spring on clutch accuating arm coming outta case doesn't get attached properly on some bikes from factory.after seeing that i went out to check mine and sure enough it was under arm instead of attached to it. so arm never released fully. i dug it out and re attached it and no more slipping!



runs great....



btw.... bike has just turned 2,000 miles and i run rotella 15 40 in all my bikes with no issues. klr650,husky te610, dr350, cm400a..... never a problem with rotella.



thanks for help...

Wow, it's amazing how many bikes this is common on. Pretty sad statement about Yamaha quality control!

 

[tpar1220]

Wow, it's amazing how many bikes this is common on. Pretty sad statement about Yamaha quality control!

i was thinking this very thing as i was trying to pry that spring out from under the arm. for the life of me i can not figure out how it could have come off, once it's on properly..... there is no way that i can see.... that it can just slip off. it had to be over looked from factory.



i have not had the cable or lever off the bike. soomeone from the factory.... just messed up. glad thats all it was, i was just gettin ready to remove clutch cover and have a look see inside.



glad a checked here first...

 

[vuldub]

It's a sticky note now:

Clutch Spring

 

[srs713]

Wow, it's amazing how many bikes this is common on. Pretty sad statement about Yamaha quality control!

Not just Yamaha... it's also on the dealer. They charge for "Dealer Prep." on a new bike ... for what?



They come 2 in a crate and "some assembly required". I wonder how many other types of bikes have this same problem. This clutch lever assy. can't be exclusive to the TW.



Most dealer shops probably have the "shop helpers" doing new bike prep. Their good mechanics are busy working on something else.

 

[tpar1220]

Not just Yamaha... it's also on the dealer. They charge for "Dealer Prep." on a new bike ... for what?



They come 2 in a crate and "some assembly required". I wonder how many other types of bikes have this same problem. This clutch lever assy. can't be exclusive to the TW.



Most dealer shops probably have the "shop helpers" doing new bike prep. Their good mechanics are busy working on something else.

It's a sticky note now:

sweet.... thanks.