1100 engine swap

[kevin shea]

hi all,have a 1991 katana 1100 motorcycle i am restoring. the frame is bent to the point where i am not comfortable using it, what years of bike do i need to find a replacement? will others years fit this bike or do i need a 91 frame ? any help would be great thanks kev, kittanning pa.

[kdo58]

Pretty sure they all interchange, or do a 7-11 , find a katana 750 and put your motor in it.

[shpielers]

The motor will fit into any katana frame you can find.

If you want to keep it in an 1100, avoid the '88, different frame with worse geometery so it has worse handling. 89-94

Welcome to KR

[kevin shea]

thanks for all the info i recieved . can get a 750 frame,for a cheap price,hope it works out will post more later. thanks for the welcome to forum!

[kevin shea]

1100 engine swap

hi again, was looking for a frame for a 1100 katana, will this motor work on a 600 frame nd handle well.not haveing any luck locating a 750 frame either in my area,lots of 600 though any help would be apprecited! thanks again kevin.

[shpielers]

Yep, 600 will work. If the frame is coming with a swing arm, and it is 89-97, the 750 swing arm is 1.5" longer than the 600. Post 750 and 600 have the same length swing arm.

If you're going to race it and/or do engine work for more power, you might want to brace the frame/swingarm, but plenty of folks have dropped 1100 or B12 motors in.

I'm reasonable sure that the 600 and 750 frame are similar enough (other than the noted swingarm length) that handling will be the same either way. Not positive though, so anyone else reading this feel free to chime in

[Kreylyn]

Yep, 600 will work. If the frame is coming with a swing arm, and it is 89-97, the 750 swing arm is 1.5" longer than the 600. Post 750 and 600 have the same length swing arm.

If you're going to race it and/or do engine work for more power, you might want to brace the frame/swingarm, but plenty of folks have dropped 1100 or B12 motors in.

I'm reasonable sure that the 600 and 750 frame are similar enough (other than the noted swingarm length) that handling will be the same either way. Not positive though, so anyone else reading this feel free to chime in

At a higher performance level with upgraded suspension, there is noticeable difference in the handling between the differences of the 1.5" length. The average rider on a stock suspension would have no clue.

Krey

[TheHayabusa]

The motor will fit into any katana frame you can find.

If you want to keep it in an 1100, avoid the '88, different frame with worse geometery so it has worse handling. 89-94

Welcome to KR

Put a 17" wheel mod on an '88 frame. Slowing down for corners becomes optional after that.

[Tekgnome]

I'm running a fully built bandit 1200 engine in my 1995 gsx750f

Kat 750 frames are cheap as hell on ebay, get one with a clean title and do a 17" wheel conversion from a gsxr or post Katana.

While you're at it replace the beat up rear shock with a Yamaha R6 one from 2010, you'll need to buy a set of bushings from Amazon for $6 but they are so much better. Compression, rebound and pre load adjustments.


I've got a lot of help from this community, you'll find one of the most helpful members on the webs here.

Welcome to katfever