Another Ninja Mutation - Page 24

ktmklx · 03-23-2012, 04:21 AM

Quote:

Originally Posted by ben2go

I am in the south east so I never even considered those.I had one on my racing kart.They needed rebuilding frequently,but that may have been a side effect of running methanol.

I would have to agree with your methanol theory, The Mikuni sled pumps are very reliable.

ktmklx · 05-03-2012, 09:29 PM

I have been looking at the rear end of this bike for quite some time, trying to figure out how to get a little more suspension travel from the ninja. So off came the the R1 shock spring and I checked the rear axle travel. It was a little short of 6" This number will not be the same as a stock ninjas with an R1 shock because of some other mods to the bike. The custom inner fender affects when the tire bottoms and the swing arm shock mount has been modified.

Last summer before the Montana trip, I installed a different spring on the Yamaha R1 shock. This spring did not provide the sag that the stock yamaha spring did, the seat ht was out of control. I had to do something quick, there was no time to fix this with a parts order. I decided to drop the bike by moving the rear shock mount back about 3/4". The good, the seat ht was now manageable, the bad now the tire hits the inner fender even earlier.

Before

After

ktmklx · 05-03-2012, 09:37 PM

My solution to the suspension travel issue is to create a new inner fender that the tire will not hit and to lengthen the swing arm.

Length (1") added to the swing arm and the brake torque reaction block moved back 1". some gussets also added.

ktmklx · 05-03-2012, 09:48 PM

The stock seat latch was retained last year, but this year it has to come off the bike. It takes up to much room in the inner fender area.

Last years inner fender went underneath the seat mount crossbar. This year's new design has the inner fender going over the seat crossbar. The crossbar is modified and the new design has a 2 piece inner fender instead of a one piece.

Last Year's

This Year's

ktmklx · 05-03-2012, 09:54 PM

Travel measurements now.

For the math challenged that is 7 5/8" inches.

ktmklx · 06-03-2012, 07:17 PM

Update continued, with the swing arm & inner fender modified the shock bottoms with clearance between the inner fender and the tire.

ktmklx · 06-03-2012, 07:21 PM

The seat latch had to be modified:

The ECU was relocated to the very back of the bike.

I moved the muffler back about 5" to reduce the chance of burning a good pair of riding pants.

ktmklx · 06-03-2012, 07:27 PM

I bought an old an old South Bend 10" lathe a few weeks ago. The first parts for the ninja, these nice little weld on stand offs for a radiator guard.

Also turned out these windscreen supports:

sailah · 06-04-2012, 05:28 AM

Nice job there. If you need tooling blanks for your lathe let me know I literally have ten lifetimes worth. Free of course to a fellow builder

2fast4u · 06-04-2012, 08:00 AM

Thats some nice work .going to make a better one for my bike but haven't made my mind up on putting the versys radiator or leaving the Ninja. So far the Ninja has word fine.

pjm204 · 06-04-2012, 01:47 PM

I may have to add the length to the swingarm as you did, the rear suspension and lock-to-lock steering reduction are the only issues I have with my build(aside from it not being entirely finished). I bottom out the tire on the underseat way too often, pretty much any time I hit the whoops.

sailah · 06-04-2012, 06:43 PM

Quote:

Originally Posted by pjm204

I may have to add the length to the swingarm as you did, the rear suspension and lock-to-lock steering reduction are the only issues I have with my build(aside from it not being entirely finished). I bottom out the tire on the underseat way too often, pretty much any time I hit the whoops.

Ktm swingarm and pds shock...

ktmklx · 06-04-2012, 07:45 PM

Quote:

Originally Posted by sailah

Nice job there. If you need tooling blanks for your lathe let me know I literally have ten lifetimes worth. Free of course to a fellow builder

Thanks for the offer. The lathe actually came with a lot of tooling, I almost shit a brick when I saw it on CL. Great price on it, and just 15 minutes away.

ktmklx · 06-04-2012, 08:05 PM

Quote:

Originally Posted by 2fast4u

Thats some nice work .going to make a better one for my bike but haven't made my mind up on putting the versys radiator or leaving the Ninja. So far the Ninja has word fine.

I am concerned about the airflow, I'll be doing a lot of local rides this summer to test it out before I go out west later this year. This thing has so much power (for me) that I am never working it very hard, so I think it will be ok.

ktmklx · 06-04-2012, 08:15 PM

Here is the bike with the lengthened swing arm and painted fairing. Just got back from an 800 mile ride to Road America last weekend. Was riding with a couple sport tourers, so it was pavement all the way. The bike works great on pavement, the only issue was with the newly added fairing and windscreen mounts the windscreen buzzes really bad between 3000 - 4000 RPM. This has to get sorted out.

05-03-2012, 09:54 PM	#350
ktmklx ^OP Studly Adventurer Joined: Jul 2008 Oddometer: 569	Travel measurements now. For the math challenged that is 7 5/8" inches. ktmklx screwed with this post 05-03-2012 at 10:11 PM

06-04-2012, 05:28 AM	#354
sailah Lampin' it Joined: Aug 2005 Location: Turning expensive metal into scrap Oddometer: 4,146	Nice job there. If you need tooling blanks for your lathe let me know I literally have ten lifetimes worth. Free of course to a fellow builder __________________ We're not out here to rough it. We're here to smooth it . Things are rough enough in town. Nessmuk sailah screwed with this post 06-04-2012 at 09:26 AM

06-04-2012, 01:47 PM	#356
pjm204 Beastly Adventurer Joined: Jan 2010 Location: Philadelphia, PA Oddometer: 1,241	I may have to add the length to the swingarm as you did, the rear suspension and lock-to-lock steering reduction are the only issues I have with my build(aside from it not being entirely finished). I bottom out the tire on the underseat way too often, pretty much any time I hit the whoops. __________________ Current bikes:2006 DL650, 2006 Ural Past bikes: XT225, TTR125, CRF50 1974 DT125,1970 TS250,1985 v45, 1989 zx600c, 1978 GS400x, 1999 GS500E, 2001 GS500E 2005 Z750s, 1977 GS400e, 1982 GS1100ez, 1997 GSX600, 2007 VFR800, 2003 KLR650, 2003 FJR1300, 2006 DL1000, 2000 KLR650, 1999 WR360, 2008 DL650, 2005 DR650,2008 EX650r, 1996 CR500, 1982 GS450T

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05-03-2012, 09:29 PM	#347
ktmklx ^OP Studly Adventurer Joined: Jul 2008 Oddometer: 569	I have been looking at the rear end of this bike for quite some time, trying to figure out how to get a little more suspension travel from the ninja. So off came the the R1 shock spring and I checked the rear axle travel. It was a little short of 6" This number will not be the same as a stock ninjas with an R1 shock because of some other mods to the bike. The custom inner fender affects when the tire bottoms and the swing arm shock mount has been modified. Last summer before the Montana trip, I installed a different spring on the Yamaha R1 shock. This spring did not provide the sag that the stock yamaha spring did, the seat ht was out of control. I had to do something quick, there was no time to fix this with a parts order. I decided to drop the bike by moving the rear shock mount back about 3/4". The good, the seat ht was now manageable, the bad now the tire hits the inner fender even earlier. Before After

05-03-2012, 09:37 PM	#348
ktmklx ^OP Studly Adventurer Joined: Jul 2008 Oddometer: 569	My solution to the suspension travel issue is to create a new inner fender that the tire will not hit and to lengthen the swing arm. Length (1") added to the swing arm and the brake torque reaction block moved back 1". some gussets also added.

05-03-2012, 09:48 PM	#349
ktmklx ^OP Studly Adventurer Joined: Jul 2008 Oddometer: 569	The stock seat latch was retained last year, but this year it has to come off the bike. It takes up to much room in the inner fender area. Last years inner fender went underneath the seat mount crossbar. This year's new design has the inner fender going over the seat crossbar. The crossbar is modified and the new design has a 2 piece inner fender instead of a one piece. Last Year's This Year's

06-03-2012, 07:17 PM	#351
ktmklx ^OP Studly Adventurer Joined: Jul 2008 Oddometer: 569	Update continued, with the swing arm & inner fender modified the shock bottoms with clearance between the inner fender and the tire.

06-03-2012, 07:21 PM	#352
ktmklx ^OP Studly Adventurer Joined: Jul 2008 Oddometer: 569	The seat latch had to be modified: The ECU was relocated to the very back of the bike. I moved the muffler back about 5" to reduce the chance of burning a good pair of riding pants.

06-03-2012, 07:27 PM	#353
ktmklx ^OP Studly Adventurer Joined: Jul 2008 Oddometer: 569	I bought an old an old South Bend 10" lathe a few weeks ago. The first parts for the ninja, these nice little weld on stand offs for a radiator guard. Also turned out these windscreen supports:

06-04-2012, 08:00 AM	#355
2fast4u Studly Adventurer Joined: Jan 2011 Location: clarksville,tn Oddometer: 657	Thats some nice work .going to make a better one for my bike but haven't made my mind up on putting the versys radiator or leaving the Ninja. So far the Ninja has word fine.

06-04-2012, 08:15 PM	#360
ktmklx ^OP Studly Adventurer Joined: Jul 2008 Oddometer: 569	Here is the bike with the lengthened swing arm and painted fairing. Just got back from an 800 mile ride to Road America last weekend. Was riding with a couple sport tourers, so it was pavement all the way. The bike works great on pavement, the only issue was with the newly added fairing and windscreen mounts the windscreen buzzes really bad between 3000 - 4000 RPM. This has to get sorted out.