Search found 907 matches

by holty
Sun Dec 29, 2019 3:50 pm
Forum: Lambretta Tech
Topic: Cheap 5/6 plate clutch
Replies: 11
Views: 4003

Re: Cheap 5/6 plate clutch

I think you will need a 10mm packer and extended basket and crownwheel to use thick plates and get 6 in, ive done similar for a 7 plate and added a cush drive as well, I extended the crownwheel by welding 2 together but had to buy an extended spider which I beefed up by adding some welding to improv...
by holty
Thu Dec 26, 2019 7:06 pm
Forum: Vespa Tech
Topic: Radiator size
Replies: 4
Views: 4028

Re: Radiator size

I just took my legshields to our local bike breakers and tried a few until I found what I wanted, I added a filler neck to the top and use a cap with a temp gauge, I have also added a small expansion bottle now as well. https://live.staticflickr.com/4577/38140787484_0db730489d_k.jpg Untitled by step...
by holty
Thu Dec 26, 2019 7:00 pm
Forum: Sports Bar
Topic: What is wrong with people?
Replies: 13
Views: 13928

Re: What is wrong with people?

it just takes a few good projects to get people involved and logging in every day and contributing, build threads are good for this, we all like pictures as they are like a thousand words, and I know some people cannot post them, so probably do a build but don't post in on here, im pretty sure there...
by holty
Wed Dec 25, 2019 11:23 am
Forum: Vespa Tech
Topic: Radiator size
Replies: 4
Views: 4028

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: 5084

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: 5084

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: 5084

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: 5084

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: 5084

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: 5515

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...