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Author Topic: YZF750/1000R - The Fly  (Read 53169 times)

Offline 1fasgsxr

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Re: YZF750/1000R - The Fly
« Reply #270 on: Mar 27, 2018, 13:11:53 »
I have used jack stands, hung em from the rafters like Doc said. Whatever works man. I have a pit bull front stand now and man it is nice. I think I am going to get the Q3+ Dunlops.
http://www.dotheton.com/forum/index.php?topic=41083.0

Life is a journey from the maternity ward to the crematorium....

Offline canyoncarver

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Re: YZF750/1000R - The Fly
« Reply #271 on: Mar 27, 2018, 16:36:42 »
Nice. G/flex is awesome. They recommend sanding plastics with 80 grit then a light flame polish with propane for the best adhesion.

That's what I did. 

Offline canyoncarver

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Re: YZF750/1000R - The Fly
« Reply #272 on: Mar 27, 2018, 16:39:31 »
I have a front and rear set of Pitbull stands.  The rear of the bike is up on one.  The front stand that has a pin and goes into the bottom of the neck doesn't fit this bike because the front fairing is too low.     I have another front stand that uses the lower fork stanchions but you cant get the axle out with that stand in the way. 

Man, I've wanted to do an overhead lift in here so I could hang stuff and pull motors right over my bench.    Someday. 
« Last Edit: Mar 27, 2018, 16:42:39 by canyoncarver »

Offline canyoncarver

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Re: YZF750/1000R - The Fly
« Reply #273 on: Mar 27, 2018, 16:57:42 »
The front wheel on this bike already had a pretty decent shape Shinko Raven on it but I wanted the front to match the rear.    I haven't tried the Q3's.   These are Dunlop GPR300's.   They were on sale at Revzilla when I got them.  I think I paid about 220$ shipped for the pair.   I take the wheels and tires for mounting to the oldest Yamaha dealer in the USA.    Bobby J's Yamaha, here in Albuquerque. 
« Last Edit: Mar 27, 2018, 17:02:21 by canyoncarver »

Offline canyoncarver

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Re: YZF750/1000R - The Fly
« Reply #274 on: Mar 27, 2018, 19:25:52 »
I lurk Craigslist a lot.  Another running parts bike showed up so today I pounced on it.  It was 70 degrees in town this week but this bike was located three hours west of me and off the main road.  It made me work for it.  Not long out of town the weather turned and as I got closer to the rendezvous point , the snow was coming down and I found my self driving in a few inches of slush and powder on a two lane road.  My van is only a half-ton and totally empty inside.  Traction is precious thing, but about what I expected in those conditions.   I did not get stuck and I brought home YZF750R #4.  It should run after I unfrack a few things the PO did. 
« Last Edit: Mar 27, 2018, 19:27:33 by canyoncarver »

Offline farmer92

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Re: YZF750/1000R - The Fly
« Reply #275 on: Mar 27, 2018, 20:47:49 »
In the instructions on the motion pro and on the Morgan carb tune, iirc  both state the little nozzle you poke in the end of tube needs to be within a certain distance  to the vacuum source to function correctly. I dont know how important this is but both carb syncs I have owned stated this.

Itís less about the distance and more about the volume of the hose.
If the volume is to large, the vacuum signal gets lost, itís harder to sync.

Itís not a constant vacuum, itís vacuum and pressure pulses. So if the volume/length in the hose is too large compared to the intake volume then you donít have the same pressure drop you would with a smaller hose. The signal is harder to read.

Tl;dr the hose length is a valid point to consider, all lengths need to be somewhat similar.


Offline 1fasgsxr

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Re: YZF750/1000R - The Fly
« Reply #276 on: Mar 28, 2018, 10:24:16 »
Nice score on #4 !  You make me wonder if I have had the Gsxr on that pit bull with the fairings on.. ???
http://www.dotheton.com/forum/index.php?topic=41083.0

Life is a journey from the maternity ward to the crematorium....

Offline canyoncarver

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Re: YZF750/1000R - The Fly
« Reply #277 on: Mar 28, 2018, 12:38:43 »
Itís less about the distance and more about the volume of the hose.
If the volume is to large, the vacuum signal gets lost, itís harder to sync.

Itís not a constant vacuum, itís vacuum and pressure pulses. So if the volume/length in the hose is too large compared to the intake volume then you donít have the same pressure drop you would with a smaller hose. The signal is harder to read.

Tl;dr the hose length is a valid point to consider, all lengths need to be somewhat similar.

This made a lot of sense to me.  Thanks Farmer. 

Offline canyoncarver

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Re: YZF750/1000R - The Fly
« Reply #278 on: Mar 28, 2018, 12:39:46 »
Nice score on #4 !  You make me wonder if I have had the Gsxr on that pit bull with the fairings on.. ???

Thanks!.  Check the fit.  I would have seriously damaged the front fairing if didn't look carefully first. 

Offline doc_rot

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Re: YZF750/1000R - The Fly
« Reply #279 on: Mar 28, 2018, 15:25:07 »
i went and looked at the instructions for the carb sync and the nozzles in the ends are dampers, they need to be the correct distance from the carb sync to smooth the vacuum pulses out, on mine its 90cm away from the tool. the motion pro may be different. It sounds like you can add some tube in front of that and be fine.
btw that van is awesome.