Engine Help

[Danpw]

Hi guys, Im all new to this! 

I recently bought a 1981 Suzuki gsx400 8 DOHC.

Great looking bike I'm looking to resort it to its original glory, I always remember as a kid my dad having one in the same colour as mine! 

Biggest issue is the bike has spend a few years outside and unfortunately the engine is seized!! so I'm on the look out for a standard engine for her

 

if anyone has one of knows where I could fin one please let me know 

 

thanks in advance 

 

dan

[Rene EFE]

Welcome. Don't forget to read the rules

[Danpw]

Thanks Rene, all read and accepted! 

[vizman]

welcome.....start ripping it apart, might not be as bad as you think

[Swiss Toni]

Welcome to OSS, Dan. Good little bike you've got there. Tough as old boots! Plenty s/h motors to be had on that site, but beware you're not buying a 'pig in a poke'! Why not whip the head off yours, and see how bad the seizure is? Barrels might not be too bad, and may just be restorable. Or, replace the top end? Keeps the numbers right! Anyway, good luck whichever way you choose to go!

[Danpw]

Thanks guys, I have the head off its not in a good way looks like its been sunk in a lake for years! what I'm looking to do is get hold of another engine then spend time rebuilding mine at a later date. I'm still not 100 percent on what model it is any help would be great! 

 

[Rene EFE]

Put a GSXR750 motor in it, or ES750 if you want to keep it aircooled.

[Danpw]

I did think that, but I would like to try and keep it standard. if I can't source a 400 engine I ill be going down that route 

[Rene EFE]

If you get stuck in the UK, try here; http://www.biggelaarmotorservice.nl/

[Danpw]

Thanks Rene, I shall if I get no joy! I shall keep hunting the Web!

[wraith]

Welcome to OSS, if your on here it won't stay standard for long, it's a highly contagious disease modifying bike 

A good little bike the 400 twins had one years ago and was well in priest when I got 3 number on the speedo (not on the public road copper ) just keep a eye open for a motor they are about.

[Danpw]

Thanks wraith, I'm beginning to see this trend! Struggling to find a standard motor, found plenty in Europe but none in U.K.! 

[Danpw]

Hi Guys, Got the head off RHS Piston is seized any ideas on the best way to get it to budge? with out breaking anything! 

[beam]

Diesel or automatic transmission fluid

 

[Swiss Toni]

+1. Also put weight on crank, with spanner in direction of travel, and give a good clout to top of piston with either alloy or hardwood dolly! Get another pair of hands involved!  Marvel Mystery Oil works wonders too!

[Danpw]

And its off! going to order some parts tomorrow. to start rebuild, any recommendations on suppliers?

 

[Swiss Toni]

Robinsons Foundry (10% discount). Mention OSS discount. Robinsons in Rochdale (15% disc, thanks to YJ). Mention Yoshimura Johnny to spares lad. Lee I think?