12-27-2015, 03:35 PM | #16 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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When I first sorted out my Beast (a 200cc pushrod motored four speed plus reverse), I wanted to dump the stock shocks before ever riding it. They were more like pogo sticks.
I cycled the wheel up and down without the shock in place, and determined the range that would work without bumpsteer, and I then welded in new upper shock mounts. They were considerably higher than the stock position, to accommodate the Yamaha Raptor shocks I bought on eBay. In retrospect, Yamaha Blaster shocks would have been easier. I was able to make the suspension work in a range that did not introduce bumpsteer. It was a fair amount of work, but it was worth it. Forgive me if I'm failing to understand; have you tried all four possible positions of the tie rod? Perhaps there is a solution for you that will minimize (if not eliminate) bumpsteer.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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12-27-2015, 05:22 PM | #17 |
Join Date: Dec 2015
Location: Waxahachie, TX
Posts: 32
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I'll agree the shock points will probably end up being moved.. When we chnage to a different shock.. Thanks for the suggestions on the shocks..
On the tie rods, I haven't tried moving both the inner and outer to the lower side. If it will clear the A arm it will change the angle of the tie rod by about 3/8 in, which would help a little.. Cutting the mount off or making a new mount on the steering shaft about 1 1/2 inches higher would be the best solution. My goal is to get the angle of the tie rods to match the angle of the A arms.. |
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12-28-2015, 02:56 AM | #18 |
Join Date: Dec 2015
Location: Waxahachie, TX
Posts: 32
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So this was tonight's project. And pretty happy with the turn out..
Bump Steer. I flipped the right and left spindles. I was able to keep the brakes on the correct side, keeping the braking linkage on the top. I flipped them to get a different angle on the tie rod to try to get the angle to match the A arms. The down side is that it dropped the front of the ATV about 1 inch. There is a warning to watch out for.. If you have the shocks in the upper mount or longer shocks, there is a good chance it will break the stock steering ball joints on the tie rods. When you remove the shock the A arm will only drop about 1/4-3/8 inch before the tie rod ball joint is at its max angle. (I might look into after market ball joints.) The difference in the axle location, and the mount for the tie rod. On the Right is the Right spindle. On the left is the left side spindle, mounted upside down on the right side. The minor amount of grinding need to keep the backing plates on the correct side. You could probably flip them and keep them with the correct spindle, but it would put the brake lever on the bottom side of the spindle. (and I didn't want that.) Just a little grinding on the top and bottom corner to get it to fit. The backing plate is rotated towards the front just a little from stock. Results.. This is with the shock removed, so it has a little more travel than normal. The steering tie rod ball joint is maxed out. This is pretty hard to tell what's going on, but I'm sitting on the front rack, and forcing it down, and then letting off. It hard to really see the movement, but there really isn't much. I'll try to get a better video tomorrow. I'm ready to give it a try.. |
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12-28-2015, 10:22 AM | #19 |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Outstanding! Looking forward to the results.
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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12-28-2015, 11:48 AM | #20 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Awesome! I can see where flipping the spindles created drop spindles. The length of the shocks seem to be compensating somewhat. How long are the existing shocks?
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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12-29-2015, 01:15 AM | #21 |
Join Date: Dec 2015
Location: Waxahachie, TX
Posts: 32
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The stock shocks are about 14 1/2 inch center to center. We'll run them for now.. But open to suggestions..
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12-29-2015, 11:49 AM | #22 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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That's pretty long. IIRC, the Yamaha Blaster shocks are around 13". Perhaps they would be a better fit.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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12-29-2015, 01:33 PM | #23 | |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Quote:
In all honesty, I'm not real concerned about bumpsteer or the shock performance. My Rhino will be used as a 'property grunt' hauling and dragging things around. Not really any speedy trail riding or serious recreation. It will most likely live in first gear most of its life. It'll be nice to have your fixes documented though. Nice work!
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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12-29-2015, 03:57 PM | #24 |
Join Date: Dec 2015
Location: Waxahachie, TX
Posts: 32
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We just rode for about 30 mins.. And it's a major improvement.. You feel more in control.. And we're not running very fast.. Even the 9 yr old said it was easier to drive.. The little 135DU isn't as bad but does it also..
I really think it's the caster angle of the spindle that gives it the odd feeling.. But this helped. I agree on the shocks.. They stiff as a board.. But will still roll into a turn.. The 13 in shocks would probably work by just moving back to the inner mounts on the lower A arm.. |
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01-30-2016, 11:15 PM | #25 | |
Join Date: Aug 2015
Posts: 69
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Quote:
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02-01-2016, 01:31 PM | #26 | |
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
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Quote:
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"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life." 2007 Suzuki DRZ400S (SM convert) 2009 Q Link XP 200 1967 BSA B25 250cc Starfire 2022 Royal Enfield Interceptor 650 2023 Royal Enfield Scram 411 1948 Royal Enfield Model G 350 |
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02-02-2016, 02:11 PM | #27 | |
Join Date: Feb 2016
Posts: 113
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Quote:
http://www.ebay.com/itm/12-5-320mm-S...item1a01f2bbd3 You can see the shocks I have mounted in this youtube vid of mine. |
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02-03-2016, 10:16 AM | #28 | |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Quote:
Thanks for sharing the vid with us. I love our little 150cc quad, and I find it to be very capable. I've never taken it hunting, but I've certainly ridden on some challenging terrain with it. I also punished it by towing a Jr. dragster (with driver) back to the pits in the high desert heat, while riding two-up. It never quit.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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