[Mr. Clean]

Yes TPS is throttle position sensor. But if you are swapping a late model Kat engine into an older (pre 1998) bike you are going to use the late model wiring harness, so why not use the late model carbs as well?

[floxera]

Yes TPS is throttle position sensor. But if you are swapping a late model Kat engine into an older (pre 1998) bike you are going to use the late model wiring harness, so why not use the late model carbs as well?

When I put my 98+ engine in my '92 I kept the pre98 wiring harness and pre98 carbs. Everythings working no problem.

[kwebbel]

Yes TPS is throttle position sensor. But if you are swapping a late model Kat engine into an older (pre 1998) bike you are going to use the late model wiring harness, so why not use the late model carbs as well?

So I've got to correct Special K the post 96's come with a TPS.

[Special K]

The Kats here in the states did not have TPS until the 98 model year. 89-97 uses regular carbs with no TPS.


ANd I always use this rule of thumb: CDI, CARBS, ALTERNATOR, WIRING HARNESS all stay WITH BIKE, not engine.

Simply put, just change the engine ONLY. EXCEPTION: OIL COOLER STAYS WITH ENGINE.

[kwebbel]

Strange to hear, overhere in Europe the TPS was introduced with the 96-models (both 600 and 750).

[The CyberPoet]

I though the TPS showed up in the US models in '96 as well, when the conversion to the CR9EK spark plugs happened.

If I understand it correctly (please correct me if I'm wrong -- anyone):
the TPS isn't truly mandatory; all it does is minorly alter the spark timing from the CDI at large throttle openings (including WOT). It doesn't actually change the CDI to a second spark map or any such, nor does it invoke MSD (which I think would be a good use of it). The degree of alteration is beneficial in getting a slight bit more power out of the combustion cycle, and keeping the emissions cleaner (at least with the stock set-up -- don't know how the interaction at high RPM's between the advance of the TPS and an ignition advancer would work). Unplugging the TPS doesn't seem to increase the rate of plug fouling nor seem to affect performance in any major way (try it and see).

I'm hoping to get on the phone with a Suzuki factory tech rep sometime soon to verify some facts for the book I'm working on, and what the TPS input signal actually varies (and how) is one of the primary reasons I wanted to talk with the factory. If I get a more definitive answer, I will let you know.

Cheers
=-= The CyberPoet

[ThAzKat]

I think you covered it Cyber. The only machines that change to a different map are FI machines. Carbed machines only advance timing on top end to give a better burn in the cylinders. Know I could be wrong and I will be corrected if that is the case.

[masrapido]

Ok, since I have suffered the little "problem" in my engine, I´m searching engines. Are those posible options?:

GSXR1100--->1990-1992
GSX1100F--->1988-1994
GSXR750---->1989-1991
Bandit 1200

Just curious...

[ThAzKat]

I am not sure about the GSXR750 and the GSXR1100 will work if you use the old 1127 engine.
The bandit does work, I haven't heard anyone mention anything about the GSX1100F engine.

[Special K]

Ok, since I have suffered the little "problem" in my engine, I´m searching engines. Are those posible options?:

GSXR1100--->1990-1992
GSX1100F--->1988-1994
GSXR750---->1989-1991
Bandit 1200

Just curious...

Only the oil cooled engine will work...........no water buffaloes! So..........that list may be correct, but I'm not sure............

Also, don't forget the 98-05 Kat 750 engines! That would be a SUPER and SIMPLE swap for your bike, and cheaper too!

[masrapido]

Ok, since I have suffered the little "problem" in my engine, I´m searching engines. Are those posible options?:

GSXR1100--->1990-1992
GSX1100F--->1988-1994
GSXR750---->1989-1991
Bandit 1200

Just curious...

Only the oil cooled engine will work...........no water buffaloes! So..........that list may be correct, but I'm not sure............

Also, don't forget the 98-05 Kat 750 engines! That would be a SUPER and SIMPLE swap for your bike, and cheaper too!

Thanks! All of those are the SACS ones. Sadly, around here in Spain post-98 Katanas arent quite populars. At the moment, I have found a pair of ´90 750 engines, a ´91 1100 and maybe in a yunkyard they have a ´00 750.
And I have found two wreckeds pre-98 with engines working.

[Mojoe]

A few notes on the above:
You'll want to use a 600 frame instead of a 750 as it's cheaper to insure!

Just be careful on that. It is not a good idea to hide the fact that you have a bigger motor. If something severe happens, and you need to file a claim, the insurance can cancel your policy and forgo settling because you insured a 600 and indeed own an 1100. Don't hide what you have from the insurance. If you do, they can legally tell you that they are not paying and there is nothing you can do about it. You need to be honest or it is like you lied. Maybe they will charge you more for the bigger motor...maybe not....but you should tell them.

[Yellow]

+1 on Mojoe, here you really could get in trouble with the insurance company...

Additionally, if you have bike inspections where you live you might get in trouble. In Sweden they will for sure fail your inspection, and have you reregister the bike with the larger displacement (which would require a paper from Suzuki that insures that the frame and the brakes could handle the higher power, weight, speed etc.)...

[masrapido]

I have a spare Katana without engine, that is for track days use only, so I would installe the 1100 engine there. I only need money (again...).

[Rackovanz]

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=4536935505&category=35595

would this work in a 2000 750 frame