250 SL head swap

The main Page for the Hodaka Club Discussion Group
Post Reply
racerclam
Posts: 588
Joined: Wed Nov 20, 2013 7:01 am

250 SL head swap

Post by racerclam »

I finally aquires a250 ED head to modify for 250SL use I just had to cut the corner of and trim some fins. Now it has a head with a centered combustion chamber much less prone to detonation . I haven't has a chance to ride it yet it toooo hot here .

Rich
Attachments
100_4732.JPG
100_4731.JPG
Darrell
Posts: 308
Joined: Mon Jul 29, 2013 7:09 am
Location: Vancouver Island, BC

Re: 250 SL head swap

Post by Darrell »

Compared to what I remember is required to adapt a Suzuki TS250 head this looks like a path of lesser resistance.

I suppose the engineers meant well when they gave the SL an offset spark plug and combustion chamber. I guess they were hoping to keep the temperature down on the exhaust side of the piston.

Thirty views so far -- and nobody has wondered why the combustion chambers are grooved?
User avatar
bchappy
Posts: 448
Joined: Fri Jul 19, 2013 6:46 am
Location: Monument, CO

Re: 250 SL head swap

Post by bchappy »

I wondered about that also. For those that are now interested they are called Torque Grooves and you can see a picture and an explanation on Rich's (racerclam) website http://www.richstaylordporting.com/
Bill Chapman, Monument, CO
Raced and Modified Hodakas in Statesville NC back in the day.
viclioce
Posts: 4804
Joined: Mon Apr 21, 2014 5:35 pm
Location: Santa Fe, NM
Contact:

Re: 250 SL head swap

Post by viclioce »

Nice job Rich! How was the cutting done without causing fin breakage? ; D Victor

1978 175SL
1976 03 Wombat
1975 99 Road Toad (2)
1973 96 Dirt Squirt (2)
1973 “Wombat Combat”
1973 Combat Wombat
1972 94 Wombat (2)
1972 Super Squirt
1971 92B+ Ace
1970 92B Ace 100B (2)
1968 92 Ace 100
1966 Ace 90
; D Victor
racerclam
Posts: 588
Joined: Wed Nov 20, 2013 7:01 am

Re: 250 SL head swap

Post by racerclam »

easily done with die grinder and cut off wheel

Rich
Post Reply

Who is online

Users browsing this forum: No registered users and 4 guests