Search found 894 matches

by holty
Wed Dec 25, 2019 11:23 am
Forum: Vespa Tech
Topic: Radiator size
Replies: 4
Views: 1594

Re: Radiator size

on my lambretta with a rotax 290 lc cylinder I used a gilera runner 125/180 radiator, it was the biggest radiator I could fit inside a legshield toolbox, I cut 2 two holes on the front of the legshields and a hole in the toolbox door and added some stainless mesh, works very well, but was tight to i...
by holty
Sun Dec 15, 2019 10:37 pm
Forum: Lambretta Tech
Topic: Granturismo 200cc piston oversize stockists
Replies: 13
Views: 2008

Re: Granturismo 200cc piston oversize stockists

found a Yamaha blaster piston on usa ebay its a wiseco 66.75 that's the size you need I think ?
by holty
Sun Dec 15, 2019 4:43 pm
Forum: Lambretta Tech
Topic: Granturismo 200cc piston oversize stockists
Replies: 13
Views: 2008

Re: Granturismo 200cc piston oversize stockists

ive just checked and pjme do mitaka pistons in plus 2.25 and plus 2.5 think that's what you need if they have them in stock
by holty
Sun Dec 15, 2019 4:35 pm
Forum: Lambretta Tech
Topic: Granturismo 200cc piston oversize stockists
Replies: 13
Views: 2008

Re: Granturismo 200cc piston oversize stockists

correction ive got 66mm in mine
by holty
Sun Dec 15, 2019 4:33 pm
Forum: Lambretta Tech
Topic: Granturismo 200cc piston oversize stockists
Replies: 13
Views: 2008

Re: Granturismo 200cc piston oversize stockists

also checked the DT175K compared to the RD350YPVS (piston used on original GT200's) on the TKRJ manual. This states a 0.5mm lower crown height on the DT175K piston. This would increase the port timings a little, if you send me port heights I can calculate what the effect would be or you could use s...
by holty
Sat Dec 14, 2019 7:45 pm
Forum: Lambretta Tech
Topic: Granturismo 200cc piston oversize stockists
Replies: 13
Views: 2008

Re: Granturismo 200cc piston oversize stockists

I presume you have tried Richard taylor ? I think they are a Yamaha piston, maybe banshee ?
by holty
Wed Nov 27, 2019 3:50 pm
Forum: Scooterotica Tuning & Maintenance Information
Topic: Imola gearing
Replies: 6
Views: 1666

Re: Imola gearing

genral rule is your final drive ratio is dictated by your choice of pipe, that been said im just building one of these with an af close ratio 4 speed box and im going for a 5.1/1 ratio to make sure it can rev enough, its getting a 60mm crank so I can lower the port timings a bit to get a more rideab...
by holty
Sat Nov 09, 2019 7:28 pm
Forum: Lambretta Tech
Topic: TSR Evo Tail can support
Replies: 18
Views: 2350

Re: TSR Evo Tail can support

you other option would be to alter the bracket, ive apapted one on my gp and its more or less under the end can, I do have a non standard exhaust so I had to make my own mounting on the engine, then a rubber bobbin, then cut and welded the bracket to fit between the two.
by holty
Mon Oct 21, 2019 6:05 pm
Forum: General Scooter Chat
Topic: I have the frame number. Can I find the registration number?
Replies: 9
Views: 2060

Re: I have the frame number. Can I find the registration number?

a grown up may come along with the correct answer but my understanding was it would have to be re registered if you don't know the registration number
by holty
Mon Oct 21, 2019 6:02 pm
Forum: Lambretta Tech
Topic: Which Exhaust
Replies: 12
Views: 2707

Re: Which Exhaust

af rayspeed have just brought out a new pipe, might be just what you need Holty Anymore info on the new AF pipes spec? I belive the pipe in question was to fit the rb but they do ts1 and cast iron stub versions, the dyno printout showed gains over tsr evo and franspeed, right across the rev range.
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