Another Attak bottoming out

[AttakMax]

Please help me. I have a 07 Attak with only 600 kms. Of coarse the suspension is bottoming out. I removed the mono shock and spring assembly ( with great help from the guys on this forum ), and took it to the dealer. The c-clip is now on the second position with the cam adjuster on the last and hardest setting. It still bottoms out too easily. I am 230 lbs with no gear. If I go to the third and last c-clip setting, will I be able to adjust the preload enough to eliminate the bottoming out? Also, will the ride be too harsh? Will I have to go to a stiffer spring from Yamaha and if so, will the ride also be too harsh? What is a Big Boy spring? Is it a Yamaha spring? I am looking for options. It turns my stomach that after forking over $15,000.00 cdn., I have to spend more money and time to get this suspension right. There were questions about last year's spring stiffness and how it was too light. You would think that they would have this issue straightened out. I also have a 01 700MM which I would not part with. I love that machine and that was a big reason why I bought this one. However, this machine has not impressed me yet. Thanks in advance for any help.

 

[ROCKRTX]

At 230 you should install the big boy spring, and all those mono shock should be revalve stiffer.Around 150$ for spring and revalve job.

 

[lugnut]

I have read alot about the bottoming out on the forum and at 250lbs I was a little concerned. I am not a jumper just like to skoot down the trail a little quicker than most.

I just got back from a trip with my 06 attack. My middle shock is setup stock from the dealer. My manual switch on the tunnel was set 5 clicks toward the hard from neutral (middle). Transfer two marks from max (not sure transfer matters) and front shocks 1.5 inches from top. There are many people more qualified than me so take this for what it is worth.

We had some good trails and some really bad streches with huge mogules. I was able to avoid bottoming out by making sure I was taking advantage of the the rider forward with the higher seat and handle bar risers to get up close to the tank with my knees forward and feet back. The few times I did bottom out I was sitting back on the seat with my feet hooked in the toe hole (this was how I used to ride my shorter height seat poo). On normal trails on a down hill glider with a curved bottom into a steep climb out I was fine. I also loved the way the 136" track swallowed up the smaller mogules.

I am still enjoying my seat time with figuring out all the nuances with 4 stroke power band, engine breaking, and 136" track so thought I would comment on the rider position theory.

 

[kipe1]

Bottoming

I weigh 215 before gear. I have the Big Boy spring and I would pogostick down the trail on 1 - 2 foot whoops. Had monoshock revalved by Goodwin performance. Best upgrade to date, no more pogosticking. Rear sucks up the bumps and I don't bottom out like I use to. If I am in light stutters or fairly smooth, the monoshock adjuster is a couple of clicks from soft. If the whoops are there I pull over and click about halfway between hard and soft.

Life is good.

Get revalved.

Steve.

 

[AttakMax]

Where did you buy the BigBoy spring? Is this a Yamaha part or an aftermarket spring?

 

[black700]

attak,i have my shock on the 3rd clip and i need to upgrade to the bigboy spring.the spring you can go to your yamaha dealer and order one.

 

[Snowman269]

I'm 300lbs, installed Yamaha 7 something spring & had Bruce @ Pioneer revalve. Followed Yamaha recommendation of that optional spring set on 2nd C clip & #4 position on cam adjuster. Shock dial is in the middle & sled rides excellent. When adjusted softer, it bottomed slightly, but in the middle it just barely touches on big stuff, & the harder setting doesn't even think about bottoming. So far so good.

The stock spring should be on the 3rd C clip position for 300lbs & Bruce suggested I just do that instead of buying the BB Spring, I just did the Big spring anyway. I carry luggage, saddlebags too, so I wanted more adjustability if needed.

If you are 230, try the 3rd C clip, that's really for a 300lb rider. Otherwise get it revalved. Spring is really only designed to hold sled up & return sled to proper height after a bump. Shock body valving is what is supposed to keep you from hitting bottom. If you are using the spring to keep sled from bottoming, sled will ride stiffer than it needs to with proper valving.

The thickness of the metal in the BB spring is considerably larger next to the stocker, it's visually very noticable. I've upgraded springs on other sleds in the past & wondered if it was really bigger because the upgrade looked the same as stock.

Also FYI, the stock Attack spring is a stronger rating than even the Apex. Must be due to the longer skid.

 

[Swiss Sledder]

Where did you buy the BigBoy spring? Is this a Yamaha part or an aftermarket spring?

Go to your Yamaha dealer. There are actually several heavier springs. If you search past threads on the site, I know there are a couple threads showing the heavier spring weights and Yamaha part numbers.

 

[AttakMax]

Guys, thanks for all the useful info.

 

[AttakMax]

I'm thinking about going to the 6.5 spring and wondering what position to put the c-clip in. I'm 230lbs without gear and I ride fairly aggressive.

 

[Snowman269]

Second C clip.