picture of your homemade tools

clem

static fluff
DTT BOTM WINNER
Clutch holder tool
20130320_124518_zpsacb0a921.jpg
 

teazer

Over 10,000 Posts
DTT BOTM WINNER
Walms said:
This is more than a hobby for you, eh Reds!

Since throttle position is what you need to look at when tuning your carbs, I made a little pointer for my throttle from a piece of plastic and a sharpie for the scale. Simple, cheap and effective. ;)

27647b96.jpg

Analog TPS. My favorite and I may just go back to that after screwing with software calibration and 5v sensors.
 

Walms

Been Around the Block
teazer said:
Analog TPS. My favorite and I may just go back to that after screwing with software calibration and 5v sensors.

You've peaked my interest! :) do you have a link to tour fuel injection thread?
 

teazer

Over 10,000 Posts
DTT BOTM WINNER
Not FI. Carbs. No TPS, so I modded a GSXR600 throttle servo TPS to fit on the oil pump. That is tied to an Aux Box along with MAP, RPM and CHT inputs. It's connected to a Ultra wide band O2 sensor and small 32 channel datalogger.

I want to be able to see what the F:A ratio is doing at different combinations of throttle and revs. Because they are CV carbs, I'm hoping to see the correlation between MAP, alpha, and n. May just turn out to be a complete waste of time but it's fun so far. If only it would warm up so I can ride the thing.

If that's successful, I'll use it with the Jemcos and 32mm round slides and I have a set of BST36s from a GSXR which should flow way more air that stock BS40s and they look almost stock so that might be a nice 2014 season upgrade.

I started off with sets of GSXR600 and R1 throttle bodies and stopped that when I worked out that I need secondary injectors to get enough pulse width without exceeding 100% duty cycles. Larger single injectors work out in theory at least to extremely short duty cycles. That's when I decided that if Bimota can't do it on a 500 twin, how TF and I going to do it on a 750 triple. :)

If I live long enough anything is possible. I may have to build something for SE Prostreet one of these days.
 

Walms

Been Around the Block
teazer said:
Not FI. Carbs. No TPS, so I modded a GSXR600 throttle servo TPS to fit on the oil pump. That is tied to an Aux Box along with MAP, RPM and CHT inputs. It's connected to a Ultra wide band O2 sensor and small 32 channel datalogger.

I want to be able to see what the F:A ratio is doing at different combinations of throttle and revs. Because they are CV carbs, I'm hoping to see the correlation between MAP, alpha, and n. May just turn out to be a complete waste of time but it's fun so far. If only it would warm up so I can ride the thing.

If that's successful, I'll use it with the Jemcos and 32mm round slides and I have a set of BST36s from a GSXR which should flow way more air that stock BS40s and they look almost stock so that might be a nice 2014 season upgrade.

I started off with sets of GSXR600 and R1 throttle bodies and stopped that when I worked out that I need secondary injectors to get enough pulse width without exceeding 100% duty cycles. Larger single injectors work out in theory at least to extremely short duty cycles. That's when I decided that if Bimota can't do it on a 500 twin, how TF and I going to do it on a 750 triple. :)

If I live long enough anything is possible. I may have to build something for SE Prostreet one of these days.

You are doing this on a H2? Yer da man! I didn't think you could even run CV carbs on a 2 stroke! Do you have a thread related to this that I can subscribe to?
 

teazer

Over 10,000 Posts
DTT BOTM WINNER
GT750 Phat Trakka. It's around here someplace.

P8060027.jpg



GT's came with BS40 CV carbs pretty much the same carbs as and XS650 or 750 4 strokes.
 

roman_dog

Ain't nothin' to it but to do it.
Here's a tool I used for syncing my carbs. The screwdriver reaches through the socket to hold the adjuster screw while I can tighten the jamnut.

P3260615_zps94663639.jpg
 

Walms

Been Around the Block
Cool tool! I don't have jam nuts on my carbs but I certainly can see if I did, that would be the tool to make.
A buddy of mine made a custom screwdriver for his air screw adjustment... He fashioned it from a welding rod, peened on one end to fit the slot perfectly, long enough that it could reach all the carbs easily from one side, plus bent at the end to clip on the frame under the seat of the bike unseen... Perfect for making the adjustment while you are out on the road.
 

DesmoBro

Busted Nut
My Vintage Wrench license plate holder
 

Attachments

  • imagejpeg_3(3).jpg
    imagejpeg_3(3).jpg
    481.8 KB · Views: 285
  • imagejpeg_2(7).jpg
    imagejpeg_2(7).jpg
    398.8 KB · Views: 286

Kellyman

New Member
My homemade spring compressor. Saw it somewhere else and was easy to make. Large C-clamp, small cut piece of wood and a magnet. Worked like a charm.
 

Attachments

  • ImageUploadedByTapatalk1380747320.579923.jpg
    ImageUploadedByTapatalk1380747320.579923.jpg
    166.5 KB · Views: 277
  • ImageUploadedByTapatalk1380747387.737948.jpg
    ImageUploadedByTapatalk1380747387.737948.jpg
    160.5 KB · Views: 275
  • ImageUploadedByTapatalk1380747427.955692.jpg
    ImageUploadedByTapatalk1380747427.955692.jpg
    176.2 KB · Views: 942
  • ImageUploadedByTapatalk1380747459.423078.jpg
    ImageUploadedByTapatalk1380747459.423078.jpg
    220.5 KB · Views: 927

Kellyman

New Member
Homemade spring compressor for my '69 cb175
 

Attachments

  • ImageUploadedByTapatalk1380747728.572398.jpg
    ImageUploadedByTapatalk1380747728.572398.jpg
    163.4 KB · Views: 275
  • ImageUploadedByTapatalk1380747663.014660.jpg
    ImageUploadedByTapatalk1380747663.014660.jpg
    197.8 KB · Views: 940

Rich Ard

doin' the backstroke in an estrogen ocean
DTT BOTM WINNER
Damper rod holder, for when a broomstick won't do the job:

 

canyoncarver

'hacking is learning'
DTT BOTM WINNER
My home made coolant retrieval tool:
 

Attachments

  • coolant_retrieval_tool.jpg
    coolant_retrieval_tool.jpg
    305.9 KB · Views: 303

BTF

New Member
Here,s fork spring compressor I made for about $35. Bought everything at Lowes.
 

Attachments

  • image.jpg
    image.jpg
    268.2 KB · Views: 927
  • image.jpg
    image.jpg
    218.1 KB · Views: 1,018
  • image.jpg
    image.jpg
    103.6 KB · Views: 957

Teddy21502

Active Member
CCRider said:
My blast cabinet. OSB plywood, glass from the door of a discarded microwave oven, and a blast gun I found on the clearance table at Lowe's for a dollar:

what did you coat the inside with?
 

DTT Bike Of The Month Gallery

DTT Light or Dark

www.jadusmotorcycleparts.com
www.cognitomoto.com
https://www.townmoto.com
www.speedmotoco.com
www.lostapostle.ca/
www.sparckmoto.com
Top Bottom